K042694 · GE Medical Systems · OEB · Nov 18, 2004 · Radiology
Device Facts
Record ID
K042694
Device Name
ADVANCED LUNG ANALYSIS II
Applicant
GE Medical Systems
Product Code
OEB · Radiology
Decision Date
Nov 18, 2004
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 892.2050
Device Class
Class 2
Attributes
Software as a Medical Device, 3rd-Party Reviewed
Indications for Use
Advanced Lung Analysis II is intended to provide an optimized non-invasive application to measure abnormalities in the lung (for example, nodules, lesions, etc.) from a set of Computed Tomography (CT) images. The software is designed to support the physician in confirming the presence or absence of physician identified lung lesions (e.g. nodules). The software allows measurement of volume over time using a consistent standardized measurement protocol, thus providing an estimation of the volume doubling time. ALA II software allows analysis and displays statistics for nodule characterization all the different nodule types. ALA II optional Digital Contrast Agent (DCA) module is an automated highlight feature for the visual identification of possible lesions. Digital Contrast Agent (DCA) is a 3D filter that produces images that highlight spherical (S) and cylindrical (C) anatomical regions, such as nodules, cysts, scars, and vessels. Images are made available to the physician to aid in characterization of suspicious nodules and thus, the patient management care decision process. ALA II provides to physician with additional information, meant to complement diagnosis based on classical techniques.
Device Story
Post-processing software for GE LightSpeed CT scanners, Advantage Workstation, and PACS; assists radiologists in lung nodule assessment. Inputs: CT image sets. Operation: User selects nodule; software performs automated 3D segmentation, volume calculation, and longitudinal comparison. Optional Digital Contrast Agent (DCA) module uses 3D filtering to highlight spherical/cylindrical structures (nodules, cysts, vessels). Output: 3D renderings, volumetric measurements, and highlighted images. Used in clinical settings by radiologists/clinicians to complement standard diagnostic techniques. Benefits: Provides standardized, reproducible measurements of lung lesions and volume doubling time to support clinical management decisions.
Clinical Evidence
No clinical data provided. Safety and effectiveness supported by software development, verification, and validation processes, and adherence to industry/international standards.
Technological Characteristics
Software-based post-processing application for CT imaging. Operates on GE LightSpeed CT scanners, Advantage Workstation 4.2+, and GE PACS. Features 3D segmentation and volumetric measurement algorithms. Includes optional 3D filtering (DCA) for anatomical structure highlighting. Regulatory class II.
Indications for Use
Indicated for physicians to assist in the assessment and measurement of lung abnormalities (e.g., nodules, lesions) in patients undergoing CT imaging. Supports confirmation of lesion presence, volume measurement over time, and estimation of volume doubling time. Optional DCA module highlights spherical and cylindrical anatomical regions (nodules, cysts, scars, vessels) to aid characterization.
Regulatory Classification
Identification
A medical image management and processing system is a device that provides one or more capabilities relating to the review and digital processing of medical images for the purposes of interpretation by a trained practitioner of disease detection, diagnosis, or patient management. The software components may provide advanced or complex image processing functions for image manipulation, enhancement, or quantification that are intended for use in the interpretation and analysis of medical images. Advanced image manipulation functions may include image segmentation, multimodality image registration, or 3D visualization. Complex quantitative functions may include semi-automated measurements or time-series measurements.
Special Controls
*Classification.* Class II (special controls; voluntary standards—Digital Imaging and Communications in Medicine (DICOM) Std., Joint Photographic Experts Group (JPEG) Std., Society of Motion Picture and Television Engineers (SMPTE) Test Pattern).
{0}------------------------------------------------
# Ko42694 510(k) SUMMARY OF SAFETY AND EFFECTIVENESS
This 510(k) summary of safety and effectiveness information is submitted in accordance with the requirements of 21 CFR Part 807.87(h).
- Submitter Larry A. Kroger, Ph.D. Senior Regulatory Programs Manager Tel: (262) 544-3894 Fax: (262) 544-4768 GE Medical Systems W-400 3000 North Grandview Blvd. Waukesha, WI 53188 USA Date Prepared: July 15, 2004
## PRODUCT IDENTIFICATION
| Name: | Advanced Lung Analysis II |
|----------------------|---------------------------------------------------------------------------------------|
| Classification Name: | Accessory to Computed Tomography System |
| Manufacturer: | General Electric Medical Systems<br>283, rue de la Minière<br>78533 Buc Cedex, FRANCE |
| Distributor: | General Electric Medical Systems, Buc, France. |
Marketed Devices The Advanced Lung Analysis II is substantially equivalent to the devices listed below:
| • Model: | Advanced Lung Analysis I |
|-----------------|------------------------------------------------|
| • Manufacturer: | General Electric Medical Systems, Buc - France |
| • 510(k) #: | K013381 |
- Model: . LungCarc CT
- . Manufacturer: Siemens, Malvern - PA19355 510(k) #: K033374
{1}------------------------------------------------
### Device Description:
K04269y
CT Advanced Lung Analysis (ALA 2 / ALA II) is a post processing analysis software package designed to assist radiologists and other clinicians in the evaluation and assessment of nodules and other lesions in the lung.
Advanced Lung Analysis II provides an effective solution for providing quick analysis and measurements to help differentiate the radiologist's findings during the primary read. The software assesses and measures all lung nodule types, including measuring volume and their changes over time. Following a C1 scan, the user clicks on a specific nodule and the software automatically calculates and displays a 3-dimensional volume and rendering of the nodule as well as the associated measurements. Advanced Lung Analysis II also offers functionality for quick comparisons between the current and previous patient procedures.
The Digital Contrast Agent (DCA) option will further compliment the Radiologist's diagnostic capability by highlighting spherical (S) and cylindrical (C) anatomical regions, such as nodules, cysts, scars. and vessels.
ALA II and DCA are software options that operate on the GE family of LightSpeed multi-slice CT scanners. Advantage Workstation 4.2 (or higher), and GE PACS systems.
#### Indications for Use:
Advanced Lung Analysis II is intended to provide an optimized non-invasive application to measure abnormalities in the lung (for example, nodules, lesions, etc.) from a set of Computed Tomography (CT) images.
The software is dcsigned to support the physician in confirming the presence or absence of physician identified lung lesions (e.g. nodules). The software allows measurement of volume over time using a consistent standardized measurement protocol, thus providing an estimation of the volume doubling time. ALA II software allows analysis and displays statistics for nodule characterization all the different nodule types.
ALA II optional Digital Contrast Agent (DCA) module is an automated highlight feature for the visual identification of possible lesions. Digital Contrast Agent (DCA) is a 3D filter that produces images that highlight spherical (S) and cylindrical (C) anatomical regions, such as nodules, cysts, scars, and vessels. Images are made available to the physician to aid in characterization of suspicious nodules and thus, the patient management care decision process.
ALA II provides to physician with additional information, meant to complement diagnosis based on classical techniques.
{2}------------------------------------------------
## Comparison with Predicate:
K042694
The functional features of Advanced Lung Analysis II software package are substantially equivalent to that of the following device:
| Device Name | FDA Clearance Number |
|--------------------------|----------------------|
| Advanced Lung Analysis I | K013381 |
| LungCare CT | K033374 |
#### Adverse Effects on Health:
The potential hazards are identified in a risk management summary (hazard analysis) and are controlled by:
- · Software Development, Validation and Verification Process to ensure performance to specifications, Federal Regulations and user requirements.
- · Adherence to industry and international standards.
#### Conclusions:
The Advanced Lung Analysis II docs not result in any new potential safety risks and performs as well as devices currently on the market. GE considers features of the Advanced Lung analysis II to be equivalent to those of Advanced Lung Analysis I (K013381) and LungCare CT (K033374).
{3}------------------------------------------------
#### DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/3/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a stylized eagle with its wings spread, enclosed within a circle. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged around the upper portion of the circle.
#### Public Health Service
MAR 1 1 2009
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
GE Medical Systems % Mr. Daniel W. Lehtonen Staff Engineer Intertek Testing Services 70 Codman Hill Road BOXBOROUGH MA 01719
K042694 Re: Trade/Device Name: Advanced Lung Analysis II Regulation Number: 21 CFR 892.2050 Regulation Name: Picture archiving and communications system Regulatory Class: II Product Code: OEB Dated: November 8, 2004 Received: November 9, 2004
#### Dear Mr. Lehtonen:
This letter corrects our substantially equivalent letter of November 18, 2004.
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. The general controls provisions of the Act include requirements for annual registration. Isting of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to such 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.
{4}------------------------------------------------
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; good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
This letter will allow you to begin marketing your device as described in your Section 510(k) premarket notification. The FDA finding os substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Office of Compliance at one of the following numbers, based on the regulation number at the top of this letter.
| 21 CFR 876.xxx | (Gastroenterology/Renal/Urology) | (240) 276-0115 |
|----------------|----------------------------------|----------------|
| 21 CFR 884.xxx | (Obstetrics/Gynecology) | (240) 276-0115 |
| 21 CFR 892.xxx | (Radiology) | (240) 276-0120 |
| Other | | (240) 276-0100 |
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding postmarket surveillance, please contact CDRH's Office of Surveillance and Biometrics' (OSB's) Division of Postmarket Surveillance at 240-276-3474. For questions regarding of device adverse events (Medical Device Reporting (MDR)), please contact the Division of Surveillance Systems at 240-276-3464. You may obtain other general information on your responsibilities under the Act from the Division of Small Manufactures, International and Consumer Assistance at its toll-free number (800) 638-2041 or (240) 276-3150 or at its Internet address http://www.fda.gov/cdrh/industry.suppot/index.html.
Sincerely yours,
Image /page/4/Picture/7 description: The image shows a black and white close-up of a handwritten symbol or character. The symbol consists of a curved line that starts thick and tapers to a point, resembling a stylized letter or abstract design. The stroke appears fluid and calligraphic, suggesting it was created with a brush or pen.
Janine M. Morris Acting Director, Division of Reproductive. Abdominal, and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{5}------------------------------------------------
## Indications for Use 042694
510(k) Number (if known):
Device Name:
#### ADVANCED LUNG ANALYSIS II
Indications for Use:
Advanced Lung Analysis II is intended to provide an optimized non-invasive application to measure abnormalities in the lung (for example, nodules, lesions, etc.) from a set of Computed Tomography (CT) images.
The software is designed to support the physician in confirming the presence or absence of physician identified lung lesions (e.g. nodules). The software allows measurement of volume over time using a consistent standardized measurement protocol, thus providing an estimation of the volume doubling time. ALA II software allows analysis and displays statistics for nodule characterization all the different nodule types.
ALA II optional Digital Contrast Agent (DCA) module is an automated highlight feature for the visual identification of possible lesions. Digital Contrast Agent (DCA) is a 3D filter that produces images that highlight spherical (S) and cylindrical (C) anatomical regions, such as nodules, cysts, scars, and vessels. Images are made available to the physician to aid in characterization of suspicious nodules and thus, the patient management care decision process.
ALA II provides to physician with additional information, meant to complement diagnosis based on classical techniques.
Prescription Use (Part 21 CFR 801 Subpart D) AND/OR
×
Over-The-Counter-Use (Part 21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IS NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
David A. Hanson
Division of Reproductive, Abdom and Radiological Device
Page
ﺮ ﺍﻟﻤ
Predicate graph will load when search results are available.
Embedding visualization will load when search results are available.
PDF viewer will load when search results are available.
Loading panels...
Select an item from Submissions
Click any panel, subpart, regulation, product code, or device to see details here.
Section Matches
Results will appear here.
Product Code Matches
Results will appear here.
Special Control Matches
Results will appear here.
Loading collections...
Loading
My Alerts
You will receive email notifications based on the filters and frequency you set for each alert.
Sort by:
Create Alert
Search Filters
Agent Token
Create a read-only bearer token for Claude, ChatGPT, or other agents that can call HTTP APIs.
Copy this now. It will not be shown again.
Connected apps
Apps you authorized through browser sign-in. Disconnecting revokes their access immediately.
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.