K092954 · Confirma, Inc. · LLZ · Nov 6, 2009 · Radiology
Device Facts
Record ID
K092954
Device Name
CADSTREAM VERSION 5
Applicant
Confirma, Inc.
Product Code
LLZ · Radiology
Decision Date
Nov 6, 2009
Decision
SESE
Submission Type
Special
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; receives DICOM images from PACS or MRI scanners; processes data for visualization, analysis, and reporting. Features include image registration, subtractions, coil inhomogeneity correction, kinetic curves, parametric image maps, apparent diffusion coefficient (ADC) maps, segmentation, and 3D volume rendering. Used in clinical settings by physicians to assist in screening, diagnosis, and interventional planning. Output displayed on server or client PC; supports workflow efficiency and interventional procedure planning. Device provides supplemental information; clinical decisions must not rely solely on CADstream output. Also functions as a multi-modality viewer for ultrasound and mammography images.
Clinical Evidence
Bench testing only. Risk analysis and verification testing performed to assess the impact of the ADC map functionality modification. Results demonstrated that predetermined acceptance criteria were met, confirming conformance to design controls and user needs.
Technological Characteristics
Software-based image processing system; runs on off-the-shelf computer hardware. Features include DICOM connectivity, image registration, subtraction, segmentation, 3D rendering, and ADC map calculation. Operates as a networked system receiving data from PACS or MRI scanners.
Indications for Use
Indicated for patients undergoing MRI studies, including breast and general MRI, for visualization, analysis, reporting, and interventional planning. Not indicated for primary interpretation of digital mammography.
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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K092954
# 510(k) Summary
5
# NOV - 6 2009
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 | September 22, 2009 |
|----|---------------------------|----------------------------------------------------------------------------------------------------------------------------------------------|
| 2. | 510(k) Submitter | Merge CAD 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: brentlewis@merge.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
CADstream version 5 has been modified to add capability and user interface changes for calculation and presentation of apparent diffusion coefficient (ADC) maps and values, as is common in MRI imaging systems for general MRI studies. This modification is consistent with the previously cleared indications for use and does not alter the fundamental scientific technology of the device. The primary predicate is therefore the previous clearance of CADstream 5 in K081556. Table 1 includes several additional predicate devices cleared with substantially equivalent ADC features to those being implemented for CADstream 5.
#### Table 1: Predicate Devices
| Manufacturer | Product | Cleared 510(k) | Product Code | Classification |
|---------------|-------------|----------------|--------------|----------------|
| Merge CAD Inc | CADstream 5 | K081556 | LLZ | 2 |
| Cedara | I-Response | K053301 | LLZ | 2 |
| Medtronic | StealthViz | K081512 | LLZ | 2 |
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#### 11. Device Description
CADstream is an image processing system designed to assist in the visualization, analysis, and reporting of magnetic resonance imaging (MRI) studies. CADstream also is intended to provide workflow efficiency and interventional planning tools.
CADstream receives DICOM magnetic resonance images from a PACS of 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 reformats)
- Analysis (registration, subtractions, coil inhomogeneity correction, kinetic curves, parametric image maps, apparent diffusion coefficient maps, automatic and manual segmentation and 3D volume rendering)
- Reporting of user-selected findings and assessment
- Interventional planning
- Workflow efficiency ■
- 예 Communication and storage (DICOM import/export, query/retrieve, and study storage)
The CADstream system consists of proprietary software developed by Merge Healthcare 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.
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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.
#### 13. Performance Testing
The subject device modification has undergone risk analysis to assess the impact of the modification on the device. Based on the risk analysis. verification testing was completed and results demonstrate that the predetermined acceptance criteria were met.
#### 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 of adding the ADC map functionality have been studied and controlled as part of the product development process, including risk analysis and design considerations. The successful completion of verification 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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Image /page/3/Picture/0 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo consists of a stylized eagle with three wing-like shapes, representing health and human services. The eagle is positioned within a circular border, with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" encircling it.
Food and Drug Administration 10903 New Hampshire Avenue Document Mail Center - WO66-G609 Silver Spring, MD 20993-0002
Mr. Brent Lewis Director, Regulatory Affairs and Quality Assurance Merge CAD, Inc. (formerly Confirma, Inc.) 11040 Main Street, Suite 100 BELLEVUE WA 98004
NOV - 6 2009
Re: K092954
Trade/Device Name: CADstream® Version 5 Regulation Number: 21 CFR 892.2050 Regulation Name: Picture archiving and communications system Regulatory Class: II Product Code: LLZ Dated: October 20, 2009 Received: October 29, 2009
Dear Mr. Lewis:
We have reviewed your Section 510(k) premarket notification of intent to market the device wt nave reviewed your becamed the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate for use surfor to May 28, 1976, the enactment date of the Medical Device Amendments, or to connineroo pror to may 20, 1976, in accordance with the provisions of the Federal Food, Drug, de neces may nat (Act) that do not require approval of a premarket approval application (PMA). and Cosmetic (110-) the the device, subject to the general controls provisions of the Act. The r ou may, morelore, manos of the Act include requirements for annual registration, listing 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 If your device is classified (boo acove) => Existing major regulations affecting your device can be may be subjoct to additions, 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 i toase of devisou has i Drivination that your device complies with other requirements of the Act that I Dri has made a determinations administered by other Federal agencies. You must or any I edelared the Act's requirements, including, but not limited to: registration and listing comply with and rice Frequirements, rt 801); medical device reporting (reporting of medical
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device-related adverse events) (21 CFR 803); good manufacturing practice requirements as sec device-related adverse events) (21 CFR Part 820); and if applicable, the electronic forth in the quality byttering (Sections 531-542 of the Act); 21 CFR 1000-1050.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please If you desire specific advice for your dontersOffices/CDRH/CDRHOffices/ucm115809.htm for go to mup://www.lua.gov/rtbound.blogical Health's (CDRH's) Office of Compliance. Also, please the Center for Devices and Radiological ground to premarket notification" (21CR Part note the regulation entined, "Misorananing of reference events under the MDR regulation (21 CFR Part 803), please go to
CHK Part 803), please go to http://www.rada.go/ Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the You may other general Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm.
Sincerely yours,
Janine M. Morris Acting Director, Division of Reproductive, Abdominal, and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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## 4
# Indication(s) for Use Statement
(092954 510(k) Number:
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 AND/OR (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (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)
Halil Demur
(Division Sign-Off)
Division of Reproductive, Abdominal, and Radiological Devices
510(k) Number_
Merge CAD Inc
CADstream 5 Special 510(k)
Page 15
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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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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).
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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.
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.
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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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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.
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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.