Multi Modality Viewer is a software application within Vitrea that allows the examination and manipulation of a series of medical images obtained from MRI and CT scanners. The option also enables clinicians to compare multiple series for the same patient, side-by-side, and switch to other integrated applications to further examine the data.
Device Story
Multi Modality Viewer is a software application operating on the Vitrea platform; it processes DICOM-compliant medical images from MRI and CT scanners. The device provides tools for image navigation, manipulation, and analysis, including 2D/MPR/4D viewing, MIP/MinIP, image subtraction, semi-automated stitching, and measurement tools (distance, angle, Cobb angle, ROIs). It enables side-by-side comparison of multiple series and studies. Used in clinical settings by radiologists, clinicians, or technologists, the software assists in reviewing images to support efficient patient care. Output is displayed on a workstation for clinical decision-making. The device benefits patients by facilitating accurate, efficient diagnostic review and comparison of radiological data.
Clinical Evidence
No clinical studies were required. Safety and effectiveness were supported by bench testing, including software verification (performance and safety testing) and validation (simulated usability testing by experienced professionals).
Technological Characteristics
Software-based radiological image processing application. Operates on the Vitrea platform. Supports DICOM standards (PS 3.1-3.20). Implements standard image manipulation algorithms (MIP/MinIP, registration, subtraction). Complies with ISO 14971 (risk management) and IEC 62304 (software lifecycle).
Indications for Use
Indicated for clinicians, radiologists, or technologists to examine and manipulate medical images from MRI and CT scanners for patient care. No specific patient population, disease, or condition limitations apply.
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).
Softread Software (Vitrea® 2, Version 3.5 Medical Image Processing Software) (K040305)
Submission Summary (Full Text)
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Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
July 13, 2016
Vital Images, Inc. % Ms. Katie Ryan Regulatory Affairs Specialist 5850 Opus Parkway, Suite 300 MINNETONKA MN 55343-4414
Re: K161419
Trade/Device Name: Multi Modalitv Viewer Regulation Number: 21 CFR 892.2050 Regulation Name: Picture archiving and communications system Regulatory Class: II Product Code: LLZ Dated: May 20, 2016 Received: May 23, 2016
Dear Ms. Ryan:
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, 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 (reporting of medical device-related adverse events) (21 CFR 803); 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. If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Industry and Consumer Education at its toll-free number (800) 638 2041
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Page 2-Ms. Katie Ryan
or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm. 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
http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely yours,
Michael D. Hara
Robert Ochs, Ph.D. Director Division of Radiological Health Office of In Vitro Diagnostics and Radiological Health Center for Devices and Radiological Health
For
Enclosure
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## Indications for Use
510(k) Number (if known) K161419
Device Name Multi Modality Viewer
Indications for Use (Describe)
Multi Modality Viewer is a software application within Vitrea® that allows the examination and manipulation of a series of medical images obtained from MRI and CT scanners.
The option also enables clinicians to compare multiple series for the same patient, side-by-side, and switch to other integrated applications to further examine the data.
Type of Use (Select one or both, as applicable)
| Prescription Use (Part 21 CFR 801 Subpart D) | <div> <span> × </span> </div> |
|----------------------------------------------|-------------------------------------------------------------------|
| Over-The-Counter Use (21 CFR 801 Subpart C) | <div> <span> </span> </div> |
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# 510K Summary
This 510(k) summary is submitted in accordance with the requirements of 21 C.F.R. Part 807.92(c).
| Basis for the<br>Submission: | Vital Images, Inc. hereby submits this traditional 510(k) to obtain<br>510(k) clearance for the Multi Modality Viewer software which is<br>substantially equivalent to the FDA cleared MR Core Software<br>(K151115). |
|---------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Submitter: | Vital Images, Inc.<br>5850 Opus Parkway, Suite 300<br>Minnetonka, MN, 55343-4414 |
| Establishment<br>Registration: | 2134213 |
| Contact Person: | Katie Ryan, M.S.<br>Regulatory Affairs Specialist<br>Phone : 952-487-9793<br>Fax: 952-487-9510<br>E-mail: kryan@vitalimages.com |
| 510(k) Type: | Traditional |
| Summary Date: | May 20, 2016 |
| Device Trade Name: | Multi Modality Viewer |
| Device Common<br>Name/ Regulatory<br>Description: | Radiological Image Processing Software, Picture Archiving and<br>Communications System |
| Device Classification<br>Name: | System, Image Processing, Radiological |
| Regulation Number: | 21 CFR 892.2050 |
| Product Code: | LLZ |
| Regulatory<br>Classification: | Class II |
| Device Panel: | Radiology |
## Predicate Device(s):
| Predicate Device | Manufacturer | FDA 510(k) Number |
|------------------|--------------------|-------------------|
| MR Core Software | Vital Images, Inc. | K151115 |
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## Reference Device(s):
| Reference Device | Manufacturer | FDA 510(k) Number |
|---------------------------------------------------------------------------------------|--------------------|-------------------|
| Softread Software<br>(Vitrea® 2, Version 3.5<br>Medical Image Processing<br>Software) | Vital Images, Inc. | K040305 |
## Device Description:
Multi Modality Viewer is a software application which functions on the Vitrea Platform, cleared by K150258. This application allows intuitive navigation, and manipulation of medical images obtained from MRI and CT scanners. This application enables clinicians to compare multiple series of the same patient, side-by-side, and switch to other integrated applications to further examine the data.
lt provides clinical tools to review images to help qualified physicians provide efficient and effective patient care.
#### Key features:
General Viewing:
- · Linked 2D, MPR and 4D viewers for single and multi-study comparison
- · Creation of retrievable evidence and snapshots
- · User defined flexible display protocols
Access to Advanced Applications and Workflows:
- In application access to MR Stitching application
- · Evidence creation and sharing across workflows
General Image Display, Manipulation, and Analysis Tools:
- · Maximum and Minimum Intensity Projection (MIP/MinIP)
- · Identification and Display of Regions of Interest (ROIs)
- · CINE image display
- · Multi-frame display
- · Color image display
- . Simultaneous multiple studies review
- · Cross-reference lines support
- Display of selected images, series, or entire study .
- · Comparison of multiple series or studies
- · Scroll
- Pan
- Zoom
- · Focus
- · Flip (Vertically, horizontally)
- Invert
- · Rotate (Clockwise, counter-clockwise)
- · Arrow
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- · Adjust Registration
- · Auto window level/width setting
- · Text/Arrow annotation (Label)
- · Measurement of distance (Ruler), Angle, Cobb Angle, Ellipse ROI, and Freehand ROI
Specialized Tools:
- · Image subtraction of two series/datasets
- · Access to semi-automated image stitching
- Study and series linking .
- · Register two different series or groups that do not share a frame of reference to link them spatially
## Intended Use / Indications for Use:
Multi Modality Viewer is a software application within Vitrea that allows the examination and manipulation of a series of medical images obtained from MRI and CT scanners.
The option also enables clinicians to compare multiple series for the same patient, side-by-side, and switch to other integrated applications to further examine the data.
## Intended for Disease / Condition / Patient Population:
Multi Modality Viewer is medical image viewer software. Therefore, particular information of intended for disease, condition, and patient population is not applicable.
# Substantial Equivalence Comparison:
## Regulatory Comparison:
| | Subject Device | Predicate Device | |
|----------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Characteristic | Multi Modality<br>Viewer | MR Core<br>Software<br>(K151115) | Comparison |
| Classification Name | System, Image<br>Processing,<br>Radiological | System, Image<br>Processing,<br>Radiological | Same |
| Regulatory Number | 892.2050 | 892.2050 | Same |
| Product Code | LLZ | LLZ | Same |
| Classification | Class II | Class II | Same |
| Review Panel | Radiology | Radiology | Same |
| Decision Date | Under Review | June 3, 2015 | Predicate device<br>is cleared |
| | Subject Device | Predicate Device | Comparison |
| Criteria | Multi Modality Viewer | MR Core Software<br>(K151115) | Comparison |
| Indications for<br>Use | Multi Modality Viewer is<br>a software application<br>within Vitrea® that<br>allows the examination<br>and manipulation of a<br>series of medical<br>images obtained from<br>MRI and CT scanners.<br>The option also<br>enables clinicians to<br>compare multiple series<br>for the same patient,<br>side-by-side, and<br>switch to other<br>integrated applications<br>to further examine the<br>data. | MR Core is an option<br>within Vitrea® that allows<br>the examination and<br>manipulation of a series<br>of medical images<br>obtained from MRI<br>scanners.<br>The option also enables<br>clinicians to compare<br>multiple series for the<br>same patient, side-by-<br>side, and switch to other<br>integrated applications to<br>further exam the data. | Similar<br>Added support for the<br>ability to examine and<br>manipulate medical<br>images obtained from<br>CT scanners was not<br>part of the predicate<br>device's indications for<br>use. |
| Intended Users | Radiologists, Clinicians<br>or Technologists | Radiologists, Clinicians or<br>Technologists | Same |
| Patient<br>Population | Multi Modality Viewer is<br>medical image viewer<br>software. Therefore,<br>particular information of<br>intended for disease,<br>condition, and patient<br>population is not<br>applicable. | MR Core Software is<br>medical image viewer<br>software. Therefore,<br>particular information of<br>intended for disease,<br>condition, and patient<br>population is not<br>applicable. | Same |
| Modality<br>Support | CT and MRI | MRI | Similar<br>Added support for the<br>ability to examine and<br>manipulate medical<br>images obtained from<br>CT scanners was not<br>part of the predicate<br>device's indications for<br>use. |
| | Subject Device | Predicate Device | |
| Criteria | Multi Modality Viewer | MR Core Software<br>(K151115) | Comparison |
| Data Loading | | | |
| Image<br>Communication<br>Standard: DICOM | Yes | Yes | Same |
| Data Viewing Support | | | |
| 2D Image Review | Yes | Yes | Same |
| 2D Comparative<br>Review | Yes | Yes | Same |
| Features and Capabilities | | | |
| Multi-Planner<br>Reformatting | Yes | Yes | Same |
| Maximum and<br>Minimum Intensity<br>Projection<br>(MIP/MinIP) | Yes | Yes | Same |
| Image Editing,<br>Setting, Saving | Yes | Yes | Same |
| Annotation &<br>Tagging Tools<br>(Label) | Yes | Yes | Same |
| Display Options<br>(e.g. thickness) | Yes | Yes | Same |
| Quantitative<br>Measurements | Yes | Yes | Same |
| Snapshot | Yes | Yes | Same |
| Cine Image Display | Yes | Yes | Same |
| Multi-frame Display | Yes | Yes | Same |
| Color Image Display | Yes | Yes | Same |
| Criteria | Subject Device | Predicate Device | |
| | Multi Modality Viewer | MR Core Software<br>(K151115) | Comparison |
| Simultaneous<br>Multiple Studies<br>Review | Yes | Yes | Same |
| Cross-reference<br>Lines Support | Yes | Yes | Same |
| Display of Selected<br>Images, Series, or<br>Entire Study | Yes | Yes | Same |
| Comparison of<br>Multiple Series or<br>Studies | Yes | Yes | Same |
| Scroll Image | Yes | Yes | Same |
| Zoom Image | Yes | Yes | Same |
| Pan Image | Yes | Yes | Same |
| Focus Image | Yes | Yes | Same |
| Rotate Image | Yes | Yes | Same |
| Flip Image - Vertical | Yes | Yes | Same |
| Flip Image -<br>Horizontal | Yes | Yes | Same |
| Rotate Image -<br>Clockwise | Yes | Yes | Same |
| Rotate Image -<br>Counter-clockwise | Yes | Yes | Same |
| Invert Image | Yes | Yes | Same |
| Arrow | Yes | Yes | Same |
| Auto Window<br>Level/Width Setting | Yes | Yes | Same |
| Measurement of<br>Distance | Yes | Yes | Same |
| Measurement of<br>Angle | Yes | Yes | Same |
| Criteria | Subject Device<br>Multi Modality Viewer | Predicate Device<br>MR Core Software<br>(K151115) | Comparison |
| Measurement of<br>Cobb Angle | Yes | Yes | Same |
| Identification and<br>Display of Ellipse<br>Regions of Interest<br>(ROIs) | Yes | Yes | Same |
| Identification and<br>Display of Freehand<br>Regions of Interest<br>(ROIs) | Yes | Yes | Same |
| Manual Registration | Yes | Yes | Same |
| Image subtraction of<br>two series/datasets | Yes | Yes | Same |
| Study and Series<br>Linking | Yes | Yes | Same |
| Semi-automated<br>image stitching | Yes | Yes | Same |
| Time Intensity<br>Analysis | Yes | Yes | Same |
| Batch Save of<br>MPR reformats | Yes | Yes | Same |
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## Indications for Use Comparison with Predicate Device:
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## Similarities in Technology with Predicate Device:
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Image /page/10/Picture/1 description: The image shows the word "VITAL" in black font. The "i" in "VITAL" has a red dot above it. The font is sans-serif and the letters are evenly spaced. The image is simple and clean, with a focus on the word itself.
| | Subject Device | Predicate Device | |
|------------------------------------------|-----------------------|-------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------…
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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.