Critical Care Suite with Pneumothorax Detection AI Algorithm, Critical Care Suite 2.1, Critical Care Suite
K223491 · Ge Medical Systems, LLC · QBS · May 25, 2023 · Radiology
Device Facts
Record ID
K223491
Device Name
Critical Care Suite with Pneumothorax Detection AI Algorithm, Critical Care Suite 2.1, Critical Care Suite
Applicant
Ge Medical Systems, LLC
Product Code
QBS · Radiology
Decision Date
May 25, 2023
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 892.2090
Device Class
Class 2
Attributes
AI/ML, Software as a Medical Device
AI Performance
Output
Algorithm
Acceptance
Observed
Dev DS
Dev Readers
Test DS
Test Readers
Pneumothorax Detection
Deep learning locked AI algorithm
—
AUC 96.1%, sensitivity 84.3%, specificity 93.2%
12,000 images from six sources segregated into training, verification, and validation datasets
—
Standalone performance validation dataset: 804 images from two North American sites
3 (radiologists)
Pneumothorax Detection
Deep learning locked AI algorithm
—
Mean AUC improvement 14.5%, sensitivity increase 16.3%, specificity increase 12.4%
12,000 images from six sources segregated into training, verification, and validation datasets
—
Multi-reader multi-case study: 400 images from the validation ground truth dataset
10 (independent readers)
Indications for Use
Critical Care Suite with Pneumothorax Detection Al Algorithm is intended to aide a clinician in the detection and localization of a pneumothorax on frontal chest radiographic images.
Device Story
Software suite for automated analysis of frontal chest X-rays; detects pneumothorax; provides triage/notification and concurrent reading aid. Inputs: frontal chest X-ray images. Processing: deep learning AI algorithm; flags suspicious findings; generates localization overlay and confidence score. Output: DICOM tag, image annotations, and localization overlay displayed on PACS, on-premise, cloud, or X-ray imaging systems. Used by radiologists and licensed HCPs (ER, IM, nurse practitioners) in clinical settings. Benefits: improves diagnostic accuracy, reduces turnaround time, and assists in case prioritization. Does not replace physician review.
Clinical Evidence
Standalone performance: 804 images (ground truth by 3 radiologists); AUC 96.1%, sensitivity 84.3%, specificity 93.2%. Large pneumothorax sensitivity 96.3%, small 75.0%. Multi-reader multi-case study (10 readers, 400 images): mean AUC improved 14.5% (76.8% to 91.3%), sensitivity 16.3% (67.4% to 83.7%), specificity 12.4% (76.6% to 89.0%). All improvements statistically significant (p<0.05).
Technological Characteristics
Deep learning locked AI algorithm; deployable on PACS, on-premise, cloud, or X-ray imaging systems. Outputs include DICOM tags, localization overlays, and confidence scores. Software-based; no specific hardware materials listed. Complies with standard quality assurance and verification/validation protocols.
Indications for Use
Indicated for adults and Transitional Adolescents (18 to < 22 years old) to assist qualified independently licensed healthcare professionals (HCPs) and radiologists in the detection and localization of pneumothorax on frontal chest X-ray images. Used for triage, notification, and as a concurrent reading aid. Not for use in-lieu of full patient evaluation or as a sole diagnostic tool.
Regulatory Classification
Identification
A radiological computer-assisted detection and diagnostic software is an image processing device intended to aid in the detection, localization, and characterization of fracture, lesions, or other disease-specific findings on acquired medical images (e.g., radiography, magnetic resonance, computed tomography). The device detects, identifies, and characterizes findings based on features or information extracted from images, and provides information about the presence, location, and characteristics of the findings to the user. The analysis is intended to inform the primary diagnostic and patient management decisions that are made by the clinical user. The device is not intended as a replacement for a complete clinician's review or their clinical judgment that takes into account other relevant information from the image or patient history.
Special Controls
A radiological computer assisted detection and diagnosis software must comply with the following special controls: Design verification and validation must include: 1. i. A detailed description of the image analysis algorithm, including but not limited to a description of the algorithm inputs and outputs, each major component or block, how the algorithm and output affects or relates to clinical practice or patient care, and any algorithm limitations. ii. A detailed description of pre-specified performance testing protocols and dataset(s) used to assess whether the device will provide improved assisted-read detection and diagnostic performance as intended in the indicated user population(s), and to characterize the standalone device performance for labeling. Performance testing includes standalone test(s), side-by-side comparison(s), and/or a reader study, as applicable. iii. Results from standalone performance testing used to characterize the independent performance of the device separate from aided user performance. The performance assessment must be based on appropriate diagnostic accuracy measures (e.g., receiver operator characteristic plot, sensitivity, specificity, positive and negative predictive values, and diagnostic likelihood ratio). Devices with localization output must include localization accuracy testing as a component of standalone testing. The test dataset must be representative of the typical patient population with enrichment made only to ensure that the test dataset contain a sufficient number of cases from important cohorts (e.g., subsets defined by clinically relevant confounders, effect modifiers, concomitant disease, and subsets defined by image acquisition characteristics) such that the performance estimates and confidence intervals of the device for these individual subsets can be characterized for the intended use population and imaging equipment. iv. Results from performance testing that demonstrate that the device provides improved assisted-read detection and/or diagnostic performance as intended in the indicated user population(s) when used in accordance with the instructions for use. The reader population must be comprised of the intended user population in terms of but not limited to clinical training, certification, and years of experience. The performance assessment must be based on appropriate diagnostic accuracy measures (e.g., receiver operator characteristic plot, sensitivity, specificity, positive and negative predictive values, and diagnostic likelihood ratio). Test datasets must meet the requirements described in 1(iii) above. v. Appropriate software documentation, including device hazard analysis, software requirements specification document, software design specification document, traceability analysis, system level test protocol, pass/fail criteria, testing results, and cybersecurity measures. 2. Labeling must include the following: i. A detailed description of the patient population for which the device is indicated for use. ii. A detailed description of the device instructions for use, including the intended reading protocol and how the user should interpret the device output. iii. A detailed description of the intended user, and any user training materials as programs that addresses appropriate reading protocols for the device to ensure that the end user is fully aware of how to interpret and apply the device output. iv. A detailed description of the device inputs and outputs. v. A detailed description of compatible imaging hardware and imaging protocols. vi. Warnings, precautions, and limitations must include situations in which the device may fail or may not operate at its expected performance level (e.g., poor image quality or for certain subpopulations), as applicable. vii. A detailed summary of the performance testing, including: test methods, dataset characteristics, results, and a summary of sub-analyses on case distributions stratified by relevant confounders, such as anatomical characteristics, patient demographics and medical history, user experience, and imaging equipment.
*Classification.* Class II (special controls). The special controls for this device are:(1) Design verification and validation must include:
(i) A detailed description of the image analysis algorithm, including a description of the algorithm inputs and outputs, each major component or block, how the algorithm and output affects or relates to clinical practice or patient care, and any algorithm limitations.
(ii) A detailed description of pre-specified performance testing protocols and dataset(s) used to assess whether the device will provide improved assisted-read detection and diagnostic performance as intended in the indicated user population(s), and to characterize the standalone device performance for labeling. Performance testing includes standalone test(s), side-by-side comparison(s), and/or a reader study, as applicable.
(iii) Results from standalone performance testing used to characterize the independent performance of the device separate from aided user performance. The performance assessment must be based on appropriate diagnostic accuracy measures (
*e.g.,* receiver operator characteristic plot, sensitivity, specificity, positive and negative predictive values, and diagnostic likelihood ratio). Devices with localization output must include localization accuracy testing as a component of standalone testing. The test dataset must be representative of the typical patient population with enrichment made only to ensure that the test dataset contains a sufficient number of cases from important cohorts (*e.g.,* subsets defined by clinically relevant confounders, effect modifiers, concomitant disease, and subsets defined by image acquisition characteristics) such that the performance estimates and confidence intervals of the device for these individual subsets can be characterized for the intended use population and imaging equipment.(iv) Results from performance testing that demonstrate that the device provides improved assisted-read detection and/or diagnostic performance as intended in the indicated user population(s) when used in accordance with the instructions for use. The reader population must be comprised of the intended user population in terms of clinical training, certification, and years of experience. The performance assessment must be based on appropriate diagnostic accuracy measures (
*e.g.,* receiver operator characteristic plot, sensitivity, specificity, positive and negative predictive values, and diagnostic likelihood ratio). Test datasets must meet the requirements described in paragraph (b)(1)(iii) of this section.(v) Appropriate software documentation, including device hazard analysis, software requirements specification document, software design specification document, traceability analysis, system level test protocol, pass/fail criteria, testing results, and cybersecurity measures.
(2) Labeling must include the following:
(i) A detailed description of the patient population for which the device is indicated for use.
(ii) A detailed description of the device instructions for use, including the intended reading protocol and how the user should interpret the device output.
(iii) A detailed description of the intended user, and any user training materials or programs that address appropriate reading protocols for the device, to ensure that the end user is fully aware of how to interpret and apply the device output.
(iv) A detailed description of the device inputs and outputs.
(v) A detailed description of compatible imaging hardware and imaging protocols.
(vi) Warnings, precautions, and limitations must include situations in which the device may fail or may not operate at its expected performance level (
*e.g.,* poor image quality or for certain subpopulations), as applicable.(vii) A detailed summary of the performance testing, including test methods, dataset characteristics, results, and a summary of sub-analyses on case distributions stratified by relevant confounders, such as anatomical characteristics, patient demographics and medical history, user experience, and imaging equipment.
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GE Medical Systems, LLC % Chris Paulik Regulatory Affairs Manager 3000 N. Grandview Blvd. WAUKESHA WI 53188
May 25, 2023
### Re: K223491
Trade/Device Name: Critical Care Suite with Pneumothorax Detection AI Algorithm Regulation Number: 21 CFR 892.2090 Regulation Name: Radiological computer assisted detection and diagnosis software Regulatory Class: Class II Product Code: QBS Dated: April 26, 2023 Received: April 27, 2023
Dear Chris Paulik:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting of medical device-related adverse events) (21 CFR 803) for
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devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely.
Jessica Lamb
Jessica Lamb, Ph.D. Assistant Director Imaging Software Team DHT8B: Division of Radiological Imaging Devices and Electronic Products OHT8: Office of Radiological Health Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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### Indications for Use
510(k) Number (if known)
### 223491
Device Name
Critical Care Suite with Pneumothorax Detection AI Algorithm
#### Indications for Use (Describe)
Critical Care Suite with Pneumothorax Detection AI Algorithm is a computer-aided triage, notification, and diagnostic device that analyzes frontal chest X-ray images for the presence of a pneumothorax. Critical Care Suite identifies and highlights images with a pneumothorax to enable case prioritization or triage and assist as a concurrent reading aide during interpretation of radiographs.
Intended users include qualified independently licensed healthcare professionals (HCPs) trained to independently assess the presence of pneumothoraxes in radiographic images and radiologists.
Critical Care Suite should not be used in-lieu of full patient evaluation or solely relied upon to make or confirm a diagnosis. It is not intended to replace the review of the X-ray image by a qualified physician. Critical Care Suite is indicated for adults and Transitional Adolescents (18 to < 22 years old but treated like adults).
| Type of Use (Select one or both, as applicable) |
|-------------------------------------------------------------------------------------------------------------------------------------------------------|
| <div> <span> ☑ Prescription Use (Part 21 CFR 801 Subpart D) </span> <span> ☐ Over-The-Counter Use (21 CFR 801 Subpart C) </span> </div> |
#### CONTINUE ON A SEPARATE PAGE IF NEEDED.
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K223491
### 510(k) Summary
In accordance with 21 CFR 807.92 the following summary of information is provided:
| Date: | May 25, 2023 | |
|----------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--|
| Submitter: | GE HealthCare, (GE Medical Systems, LLC) | |
| | 3000 N. Grandview Blvd | |
| | Waukesha, WI 53188 USA | |
| Primary<br>Contact<br>Person: | Chris Paulik<br>Senior Regulatory Affairs Manager<br>GE HealthCare<br>262-894-5415<br>Christopher.A.Paulik@ge.com | |
| Secondary<br>Contact<br>Person: | Gregory Pessato<br>Regulatory Affairs Director<br>GE HealthCare<br>+33 (6) 34423240<br>GregoryPessato@ge.com | |
| Device Trade<br>Name: | Critical Care Suite with Pneumothorax Detection Al Algorithm | |
| Common /<br>Usual Name: | Radiological computer assisted detection and diagnosis software | |
| Classification<br>Names and<br>Product Code: | Regulation Name: Radiological computer assisted detection and diagnosis software<br>Regulation: 21 CFR 892.2090<br>Classification: Class II<br>Product Codes: QBS | |
| Predicate<br>Device: | BoneView (K212365)<br>Regulation Name: Radiological computer assisted detection and diagnosis software<br>Regulation: 21 CFR 892.2090<br>Classification: Class II | |
| | Product Codes: QBS | |
| Reference<br>Device: | Critical Care Suite (K183182)<br>Regulation Name: Radiological computer aided triage and notification software<br>Regulation: 21 CFR 892.2080<br>Classification: Class II<br>Product Codes: QFM | |
| Device<br>Description: | Critical Care Suite is a suite of Al algorithms for the automated image analysis of frontal chest X-rays acquired on a digital x-ray system for the presence of critical findings. Critical Care Suite with Pneumothorax Detection Al Algorithm is indicated for adults and transitional adolescents (18 to <22 years old but treated like adults) and is intended to be used by licensed qualified healthcare professionals (HCPs) trained to independently assess the presence of pneumothoraxes in radiographic images and radiologists. Critical Care Suite is a software module that can be deployed on several computing platforms such as PACS, On Premise, On Cloud or X-ray Imaging Systems.<br><br>Today's clinical workflow, hospitals are overburdened by large volume of orders and long turnaround times for radiologist reports. Critical Care Suite with the Pneumothorax Detection Al Algorithm enables effective prioritization and assists in the detection / diagnosis of pneumothoraxes for radiologists and HCPs that have been trained to independently assess the presence of pneumothoraxes in radiographic images. It performs this task by flagging images with a suspicious finding and providing a localization overlay of the suspected pneumothorax as well as a graphical representation of the algorithm's confidence in the resultant finding. These outputs can be displayed wherever the reviewing physician normally conducts their reads per their standard of care, including PACS, On Premise, On Cloud and Digital Projection Radiographic Systems. | |
| Intended Use: | Critical Care Suite with Pneumothorax Detection Al Algorithm is intended to aide a clinician in the detection and localization of a pneumothorax on frontal chest radiographic images. | |
| Indications for<br>Use: | Critical Care Suite with Pneumothorax Detection Al Algorithm is a computer-aided triage, notification, and diagnostic device that analyzes frontal chest X-ray images for the presence of a pneumothorax. Critical Care Suite identifies and highlights images with a pneumothorax to enable case prioritization or triage and assist as a concurrent reading aid during interpretation of radiographs.<br><br>Intended users include qualified independently licensed healthcare professionals (HCPs) trained to independently assess the presence of pneumothoraxes in radiographic images and radiologists.<br><br>Critical Care Suite should not be used in-lieu of full patient evaluation or solely relied upon to make or confirm a diagnosis. It is not intended to replace the review of the X-ray | |
| | image by a qualified physician. Critical Care Suite is indicated for adults and Transitional<br>Adolescents (18 to <22 years old but treated like adults). | |
| Technology: | Critical Care Suite with Pneumothorax Detection Al Algorithm employs the same<br>fundamental scientific technology as its predicate and reference devices. They are all<br>deep learning locked AI algorithms that can be deployed on several computing platforms<br>such as PACS, On Premise, On Cloud or X-ray Imaging Systems. The patient and user<br>populations are equivalent to what was provided with Critical Care Suite with<br>Pneumothorax Detection Al Algorithm. The output is equivalent since both predicate<br>and proposed devices produce a result if a suspicious finding is detected, provide a<br>localization overlay of the suspected pathology within the image and a representation of<br>the algorithm's confidence in the resultant finding. The intended use has been expanded<br>from the original release of Critical Care Suite (K183182) to display an overlay to the<br>reviewing physician that helps localize a detected pneumothorax. It also provides a<br>confidence level to the reviewing physician that provides contextual information in the<br>algorithm's confidence for its pneumothorax detection output. | |
| | The differences between Critical Care Suite with Pneumothorax Detection Al Algorithm<br>and BoneView are the specific pathologies that are being detected. Critical Care Suite<br>with Pneumothorax Detection Al Algorithm analyzes frontal chest radiographic images<br>for the presence of a suspected pneumothorax where BoneView analyzes radiographic<br>images for the presence of suspected fractures. This difference does not impact the<br>safety or efficacy of Critical Care Suite with Pneumothorax Detection Al Algorithm since<br>both devices analyze images using deep learning Al technology to detect pathologies<br>producing an output that can aide clinicians and radiologists with their diagnosis. | |
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# GE HealthCare 510(k) Premarket Notification Submission
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# 510(k) Premarket Notification Submission
| Product Device<br>Comparison | Critical Care Suite with Pneumothorax<br>Detection AI Algorithm | BoneView (K212365) |
|---------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Device<br>Classification | Radiological computer assisted detection and<br>diagnosis software<br>Class II, QBS | Radiological computer assisted detection and<br>diagnosis software<br>Class II, QBS |
| Targeted clinical<br>condition,<br>anatomy, and<br>imaging modality | Pneumothorax<br>Chest/Lung<br>AP/PA Chest X-Ray Imaging | Fracture<br>Ankle, Foot, Knee, Femur, Wrist, Hand, Elbow,<br>Forearm, Humerus, Shoulder, Clavicle, Pelvis, Hip,<br>Ribs, Thoracic Spine, Lumbar Spine<br>2D Radiographic Images |
| Algorithm<br>Inferencing<br>Mechanism | AI deep learning algorithms designed to detect<br>pneumothorax in frontal chest X-ray images to aide<br>in identifying and highlighting pneumothoraxes<br>during the review of radiographs. | Al supervised deep learning algorithm designed to<br>aide in identifying and highlighting fractures during<br>the review of radiographs. |
| Computational<br>Platform | Critical Care Suite is designed as a self-contained<br>software module deployable on various<br>computational and x-ray imaging system platforms | Deployment on-premises or on cloud and connection<br>to several computing platforms and X-ray imaging |
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Image /page/6/Picture/0 description: The image shows the logo for General Electric (GE). The logo is a blue circle with the letters "GE" in a stylized font in the center. There are three white water droplets surrounding the letters. The logo is simple and recognizable, and it is associated with a well-known company.
# GE HealthCare 510(k) Premarket Notification Submission
| Product Device<br>Comparison | Critical Care Suite with Pneumothorax<br>Detection AI Algorithm | BoneView (K212365) |
|-------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| | such as Digital Projection Radiographic Systems,<br>PACS, On Premise or On Cloud. | platforms such as X-ray radiographic systems, or<br>PACS |
| Algorithm Outputs | 1. Configurable DICOM tag that identifies if a<br>suspected pneumothorax was detected.<br>2. Image annotations that contain:<br>Flag if a suspected pneumothorax was<br>detected Graphical representation of the<br>algorithms confidence in the algorithms<br>result Overlay (color or grayscale) that localizes<br>the pneumothorax within the image | 1. Optional Summary Table with the results of the<br>overall study<br>2. Results Image that contains<br>Region of Interest that is a solid or dotted<br>rectangle based on confidence of the<br>algorithm Summary including the number of regions<br>of interest that are displayed and a caution<br>message if it was identified that the image<br>was not part of the indications for use of<br>BoneView. |
| Destination for<br>Viewing Algorithm<br>Results | Image annotation on a secondary DICOM image and<br>a DICOM message that identifies if a suspected<br>pneumothorax was detected within the study.<br>The output can be immediately used to visualize the<br>results on any DICOM destination such as a user's<br>images storage system (PACS) or the x-ray system. | Image annotations made on copy of original image or<br>image annotations toggled on/off.<br>The output can be immediately used to visualize the<br>result on any DICOM destination such as a user's<br>images storage system (PACS) or other radiological<br>equipment (X-Ray System) |
| Clinical and<br>Non-Clinical<br>Tests: | Summary of Non-Clinical Tests: |
|----------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| | The following quality assurance measures were applied to the development of Critical<br>Care Suite with Pneumothorax Detection AI Algorithm and deployment onto the AMX<br>Navigate system: |
| | 1. Risk Analysis |
| | 2. Requirements Reviews |
| | 3. Design Reviews |
| | 4. Testing on unit level (Module verification) |
| | 5. Integration testing (System verification) |
| | 6. Performance testing (Verification) |
| | 7. Safety testing (Verification) |
| | 8. Simulated use testing (Validation) |
| | Critical Care Suite with Pneumothorax Detection AI Algorithm specific verification was<br>conducted to demonstrate proper implementation of Critical Care Suite software design<br>requirements. |
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Regression testing on the AMX Navigate feature functionality was conducted to verify proper integration of Critical Care Suite with Pneumothorax Detection Al Algorithm into the AMX Navigate software and device. Validation was performed on AMX Navigate with integrated Critical Care Suite with Pneumothorax Detection Al Algorithm. Design verification and validation testing was performed to confirm that the safety and effectiveness of the device has not been affected. The test plans and results have been executed with acceptable results. Summary of Clinical Tests: The Pneumothorax Detection Al Algorithm was developed using over 12,000 images from six sources, including the National Institute of Health and sites within the United States, Canada, and India. This data was then segregated into training, verification, and validation datasets. The final validation ground truth dataset included 804 images from two North American sites that were not used in the training process of the algorithm. A mix of cases with low, moderate, and high complexity were included in the dataset. 544 images were acquired on GE HealthCare scanners and 264 images acquired on non-GE Healthcare scanners. Only one site was able to provide age and gender demographics which included a distribution of 51.2% males and 48.8% females, with a median age of 68 (min 18, max 90+). The reference standard was established by three blinded radiologists. The standalone performance of the Pneumothorax Detection Al Algorithm was tested against this dataset establishing that the algorithm can detect a pneumothorax within a frontal chest x-ray image and that the Pneumothorax Overlay can localize a suspected pneumothorax. The ground truth dataset adequately analyzed all the primary and secondary endpoints and the results met the defined passing criteria. The Pneumothorax Detection Al Algorithm achieved an AUC of 96.1% (94.9%, 97.2%), a sensitivity of 84.3% (80.6%, 88.0%) and a specificity of 93.2% (90.8%, 95.6%) for detection of pneumothoraxes on both anteroposterior and posteroanterior frontal chest x-ray images. The algorithm also had high sensitivity for detecting large pneumothoraxes with a sensitivity of 96.3% (93.1%, 99.2%) and small pneumothorax with a sensitivity of 75.0% (69.2%, 80.8%). Additionally, the Pneumothorax Overlay was assessed on the true positive cases identified above, and it partially localized 98.1% (96.6%, 99.6%) of the actual pneumothorax within an image between the apical, lateral, and inferior regions of a lung. It performed with full agreement between these regions 67.8% (62.7%, 73.0%). lt also performed with a DICE Similarity Coefficient of 0.705 (0.683, 0.724) indicating that on average 70.5% of the Pneumothorax Overlay area and the true area of a pneumothorax within an image overlap. A multi-reader multi-case study was conducted to assess that the use of the Critical Care Suite with Pneumothorax Detection Al Algorithm improves reader performance within the intended use population in detecting / diagnosing a pneumothorax in a frontal chest x-ray image. This study consisted of 10 independent readers to adequately analyze all the primary and secondary endpoints of varied experiences levels representing the
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| | clinical users who would interact with the Critical Care Suite with Pneumothorax<br>Detection Al Algorithm: radiologists (Rad.), internal medicine (IM) physicians, emergency<br>medicine (ER) physicians, and nurse practitioners. This study contained 400 images from<br>the original validation ground truth dataset used to determine the standalone<br>performance of the algorithm, and adequately analyzed that all the primary and<br>secondary endpoints met the defined passing criteria. |
|-------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| | Critical Care Suite with Pneumothorax Detection Al Algorithm improved reader<br>performance for detection of pneumothorax, measured by mean AUC, by 14.5%<br>(7.0%,22.0%; p=.002), from 76.8% non-aided to 91.3% aided. Reader sensitivity<br>increased by 16.3% (13.1%, 19.5%; p<.001) from 67.4% non-aided to 83.7% aided.<br>Reader specificity increased by 12.4% (9.6%, 15.1%; p<.001) from 76.6% non-aided to<br>89.0% aided. The overall performance by size was also improved. The readers showed<br>an improvement for detection of large pneumothorax measured by mean AUC 10.5%<br>(3.2%, 17.8%, p=0.009) and sensitivity 13.4% (10.0%, 16.9%, p<.001). The readers<br>showed an improvement for detection of small pneumothorax measured by mean AUC<br>17.6% (9.3%, 25.9%, p<0.001) and sensitivity 18.7% (13.8%, 23.6%, p<.001). The<br>different clinical user's improvements in mean AUC were assessed, and it was noted that<br>all physicians (Rad, IM, ER) improved 10.4% (2.8%, 17.9%, p=0.015), nurse practitioners<br>improved 24.1% (1.2%, 47.0%, p=0.045), radiologists improved 2.4% (-1.0%, 5.7%,<br>p=0.095), and non-radiologists (ER, IM, NP) improved 17.5% (9.6%, 25.4%, p<0.001). |
| Determination<br>of Substantial<br>Equivalence: | The introduction of Critical Care Suite with Pneumothorax Detection Al Algorithm does<br>not result in any new potential safety risks and uses the same fundamental deep learning<br>based technology to detect pathological finding on 2D X-ray images. Technological<br>differences were assessed through bench testing and clinical validation. Like its predicate<br>the device has been shown to improve intended user accuracy at detecting the targeted<br>pathological finding by licensed healthcare professionals, thus demonstrating that the<br>proposed device is substantially equivalent to its predicate. |
| | After analyzing design verification and validation testing on the bench and the clinical<br>testing results it is the conclusion of GE HealthCare that the Critical Care Suite with<br>Pneumothorax Detection AI Algorithm software to be as safe, as effective, and<br>performance is substantially equivalent to the predicate device. |
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Learn the FDA Browser
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.