K081556 · Confirma, Inc. · LLZ · Feb 2, 2009 · Radiology
Device Facts
Record ID
K081556
Device Name
CADSTREAM, VERSION 5.0
Applicant
Confirma, Inc.
Product Code
LLZ · Radiology
Decision Date
Feb 2, 2009
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 892.2050
Device Class
Class 2
Attributes
Software as a Medical Device
Indications for Use
CADstream is intended to be used in the visualization, analysis, and reporting of magnetic resonance imaging (MRI) studies. CADstream supports evaluation of dynamic MR data acquired during contrast administration. CADstream performs other user selected processing functions (such as image registration, subtractions, measurements, 3D renderings, and reformats). CADstream also includes user-configurable features for reporting on findings in breast or general MRI studies. Additionally, CADstream assists users in planning MRI guided interventional procedures. When interpreted by a skilled physician, this device provides information that may be used for screening, diagnosis, and interventional planning. Patient management decisions should not be made based solely on the results of CADstream. CADstream may also be used as an image viewer of multi-modality, digital images, including ultrasound and mammography. CADstream is not intended for primary interpretation of digital mammography images.
Device Story
CADstream Version 5 is an image processing system for MRI studies. It receives DICOM images from PACS or MRI scanners; processes data on a server or client PC; and provides tools for visualization (MIPs, reformats), analysis (registration, subtraction, kinetic curves, parametric maps, 3D rendering), and reporting. Used by radiologists/physicians in clinical settings to assist in screening, diagnosis, and interventional planning. Output includes processed images, kinetic analysis, and reports. Benefits include improved workflow efficiency and standardized reporting. Patient management decisions must not rely solely on device output.
Clinical Evidence
Bench validation testing performed to verify device meets input requirements and demonstrate substantial equivalence to version 4. Clinical validation testing conducted to demonstrate conformance to user needs and intended uses per 21 CFR 820.30(g). No specific clinical trial metrics (e.g., sensitivity/specificity) provided.
Technological Characteristics
Image processing software installed on off-the-shelf computer hardware. Features include DICOM connectivity, image registration, subtraction, kinetic curve analysis, parametric mapping, and 3D volume rendering. Operates as a networked system for visualization and reporting.
Indications for Use
Indicated for visualization, analysis, and reporting of MRI studies, including dynamic contrast-enhanced data, in patients undergoing breast or general MRI. Assists in interventional planning. Also functions as a multi-modality image viewer for ultrasound and mammography (not for primary interpretation). Intended for use by skilled physicians.
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).
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K08 1556
FEB -2 2009
#### 510(k) Summary 5
This 510(k) summary is submitted as part of the PreMarket Notification in accordance with the requirements of SMDA 1990, 21 CFR 807.87(h), and 21 CFR 807.92.
| 1. | Date Prepared | December 16, 2008 |
|----|---------------------------|---------------------------------------------------------------------------------------------------------------------------------------------|
| 2. | 510(k) Submitter | Confirma, Inc.<br>11040 Main Street, Suite 100<br>Bellevue, WA 98004<br>Phone: 425-691-1400<br>Fax: 425-691-1599 |
| 3. | 510(k) Contact Person | Brent Lewis, Director Regulatory<br>Affairs and Quality Assurance<br>Email: blewis@confirma.com<br>Phone: 206-455-5398<br>Fax: 425-691-1599 |
| 4. | Device Common Name | Image Processing System |
| 5. | Device Trade Name | CADstream Version 5 |
| 6. | Classification Regulation | 21 CFR 892.2050 |
| 7. | Class | 2 |
| 8. | Panel | Radiology Panel |
| 9. | Product Code | LLZ |
### 10. Comparison with Legally Marketed Devices
As with the predicate devices listed in Table 1, CADstream version 5 is indicated for use in the visualization, analysis, reporting, interventional planning, and improved workflow efficiency of magnetic resonance imaging (MRI) studies and supports the evaluation of dynamic MR data acquired during contrast administration. All these devices are intended to provide information that may be useful in screening or diagnosis.
#### Table 1: Predicate Devices
| Manufacturer | Product | Cleared 510(k) | Product Code | Classification |
|--------------|---------------------|------------------|--------------|----------------|
| Confirma | CADstream 5 | Pending | LLZ | |
| | CADstream 4 | K043216 | LLZ | |
| | CADstream 2 | K031779 | LLZ | |
| Invivo | DynaCAD 1.0 | K041286 | LZ | |
| CADsciences | 3TP | K031350. K050862 | LIZ | |
| GE Medical | AW & Functool | K960265 | 17 | |
| Clario | Z3D Contrast Acuity | K080196 | LL7 | |
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Table 2 presents a detailed comparison of features in CADstream version 5 to the predicate devices.
| CADstream 5 Features | Predicate Devices | | | | |
|----------------------------------------------------------------|--------------------|----------------|------------------|-----|-----|
| | CADstream<br>2 & 4 | DynaCAD<br>1.0 | AW &<br>Functool | 3TP | Z3D |
| General Body MR Functions | | | | | |
| Standard image viewing tools | X | X | X | X | X |
| View/play clips from ultrasound<br>images | X | 0 | 0 | 0 | 0 |
| MIPs | X | X | 0 | X | X |
| Reformats | X | X | 0 | 0 | X |
| Registration | X | X | 0 | X | X |
| Subtraction series | X | X | 0 | X | X |
| Coil inhomogeneity correction | | X | 0 | 0 | 0 |
| View 3D volume rendering | X | X | X | 0 | X |
| Kinetic curves | X | X | X | X | X |
| Parametric image maps | X | X | X | X | X |
| Portfolio of user-selected findings | X | X | X | X | X |
| DICOM import/export and<br>query/retrieve | X | X | X | 0 | 0 |
| User-Customizable Reporting | X | X | 0 | X | X |
| Breast Specific: Module Features | | | | | |
| Reporting for Breast MR Studies | X | X | 0 | X | 0 |
| View/invert mammography images | X | X | 0 | 0 | 0 |
| View/edit finding volume | X | X | 0 | X | 0 |
| View/edit finding location | X | X | 0 | X | 0 |
| View/edit finding size | X | X | 0 | X | 0 |
| View/edit kinetic curve with highest<br>uptake | X | X | 0 | X | 0 |
| View images and findings from two<br>studies from same patient | X | X | 0 | X | 0 |
| Interventional planning | X | X | 0 | 0 | 0 |
Table 2: Predicate Device Feature Comparison
Key
Substantially equivalent feature cleared in predicate device. X
0 Not known from literature.
## 11. Device Description
CADstream is an image processing system designed to assist in the visualization, analysis, and reporting of magnetic resonance imaging
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(MRI) studies. CADstream also is intended to provide workflow efficiency and interventional planning tools.
CADstream receives DICOM magnetic resonance images from a PACS or directly from the MRI scanner. As they are received, CADstream processes and displays the results on the CADstream server or a client personal computer.
Available features support:
- Visualization (standard image viewing tools, MIPs, and 미 reformats)
- Analysis (registration, subtractions, coil inhomogeneity B correction, kinetic curves, parametric image maps, and 3D volume rendering)
- Reporting of user-selected findings and assessment ■
- Interventional planning 트
- Workflow efficiency l
- Communication and storage (DICOM import/export, query/retrieve, and study storage)
The CADstream system consists of proprietary software developed by Confirma installed on an off-the-shelf computer.
### 12. Indications for Use
CADstream is intended to be used in the visualization, analysis, and reporting of magnetic resonance imaging (MRI) studies. CADstream supports evaluation of dynamic MR data acquired during contrast administration. CADstream performs other user selected processing functions (such as image registration, subtractions, measurements, 3D renderings, and reformats).
CADstream also includes user-configurable features for reporting on findings in breast or general MRI studies. Additionally, CADstream assists users in planning MRI guided interventional procedures.
When interpreted by a skilled physician, this device provides information that may be used for screening, diagnosis, and interventional planning. Patient management decisions should not be made based solely on the results of CADstream.
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CADstream may also be used as an image viewer of multi-modality, digital images, including ultrasound and mammography. CADstream is not intended for primary interpretation of digital mammography images.
### 13. Performance Testing
CADstream version 5 has successfully undergone extensive verification testing to verify the device meets input requirements. Bench validation testing was also performed to demonstrate the product modifications from version 4 resulted in a substantially equivalent product and did not raise any new safety or effectiveness concerns. Additionally, the completed clinical validation testing demonstrates the device conforms to user needs and intended uses per 21CFR820.30(g).
#### 14. Conclusion
CADstream Version 5 provides features to integrate radiology department workflow by facilitating the visualization, analysis, and reporting of MR images. The potential hazards have been studied and controlled as part of the product development process, including risk analysis and design considerations. The successful completion of verification and validation testing has demonstrated conformance to design controls, user needs, and intended use, and that the device is safe and effective.
Based on the information supplied in this 510(k), we conclude that the subject device is safe, effective, and substantially equivalent to the predicate devices.
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# Truthful and Accurate Statement
# PREMARKET NOTIFICATION
## TRUTHFUL AND ACCURATE STATEMENT
[As required by 21 CFR 807.87(k)]
I certify that, in my capacity as Acting Director of Regulatory Affairs at Confirma, Inc., I believe to the best of my knowledge, that all data and information submitted in this 510(k) PreMarket Notification are truthful and accurate and that no material fact has been omitted.
ZZZ.
Brent Lewis Acting Director, Regulatory Affairs Confirma, Inc.
02 Jun 2008
Date
02Jun2008
6
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## DEPARTMENT OF HEALTH & HUMAN SERVICES
Public Health Service
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
FEB - 2 2009
Mr. Brent Lewis Director, Regulatory Affairs and Quality Assurance Confirma, Incorporated 11040 Main Street. Suite 100 BELLEVUE WA 98004
Re: K081556
Trade/Device Name: CADstream@ Version 5 Regulation Number: 21 CFR §892.2050 Regulation Name: Picture archiving and communications systems Regulatory Class: II Product Code: LLZ
Dated: December 23, 2008 Received: December 23, 2008
Dear Mr. Lewis:
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. Ilsting 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.
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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 (QS) 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 the reporting 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/cdrb/industry.suppot/index.html.
Sincerely yours,
Janine M. Morris
cting Director, Division of Reproductive, Abdominal, and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# Indication(s) for Use Statement
510(k) Number: K081556
Device Name: CADstream@ Version 5
Indications for Use:
CADstream is intended to be used in the visualization, analysis, and reporting of magnetic resonance imaging (MRI) studies. CADstream supports evaluation of dynamic MR data acquired during contrast administration. CADstream performs other user selected processing functions (such as image registration, subtractions, measurements, 3D renderings, and reformats).
CADstream also includes user-configurable features for reporting on findings in breast or general MRI studies. Additionally, CADstream assists users in planning MRI guided interventional procedures.
When interpreted by a skilled physician, this device provides information that may be used for screening, diagnosis, and interventional planning. Patient management decisions should not be made based solely on the results of CADstream.
CADstream may also be used as an image viewer of multi-modality, digital images, including ultrasound and mammography. CADstream is not intended for primary interpretation of digital mammography images.
Prescription Use X (Part 21 CFR 801 Subpart D)
Over-The-Counter Use AND/OR (21 CFR 807 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
| Concurrence of CDRH, Office of Device Evaluation (ODE) | |
|--------------------------------------------------------|---------|
| (Division Sign-Off) | |
| Division of Reproductive, Abdominal and | |
| Radiological Devices | |
| 510(k) Number | K081656 |
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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.
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Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
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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.
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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.
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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.
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Reading rule for every project: how many summaries do you read in full?
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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.
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Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
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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.