IMPAX Volume Viewing software is a visualization package for PACS workstations. It is intended to support radiographer, medical imaging technician, radiologist and referring physician in the reading, and diagnosis of DICOM compliant volumetric medical datasets. The software is intended as a general purpose digital medical image processing tool, with optionality to facilitate visualization and measurement of vessel features. Other optional functionality is intended for the registration of anatomical (CT) on functional volumetric image data (MR) to facilitate the comparison of various lesions. Volume and distance measurements are intended for evaluation and quantification of tumor measurements, and other analysis and evaluation of both hard and soft tissues. The software also supports interactive segmentation of a region of interest (ROI). Web-browser access is available for review purposes. Images accessed through a web-browser (via a mobile device or by other means) should not be used to create a diagnosis, treatment plan, or other decision that may affect patient care.
Device Story
IMPAX Volume Viewing 3.0 is a PACS-based software visualization tool for processing 3D volumetric medical images (CT/MR). It enables clinicians (radiologists, technicians) to perform multi-planar reconstructions (MPR), 3D volume rendering, and image registration. Key features include automated removal of bone-like structures and CT-table, semi-automatic region growing for volume measurement, and vessel stenosis analysis. The device processes DICOM datasets to produce enhanced visualizations, measurements, and color maps. It supports web-browser access for remote review, though web-based output is restricted from diagnostic use. By facilitating segmentation, registration, and quantification of anatomical structures and lesions, the software assists clinicians in diagnostic workflows and treatment planning. It does not provide automated diagnostic conclusions but serves as an interactive processing aid.
Clinical Evidence
No clinical trials performed. Validation conducted via bench testing and usability studies involving 29 medical professionals using 154 anonymized clinical studies. Validation confirmed adequacy of centerline computation, stenosis determination, bone removal, and image rendering quality through side-by-side comparisons with predicates. Web-browser component validated by 11 professionals using 42 datasets. All results met pre-defined acceptance criteria.
Technological Characteristics
Software-based PACS accessory. Features: 3D volume rendering, MPR, MIP/MinIP, image registration (automatic/manual), segmentation, and measurement tools. Connectivity: Networked/Web-browser access. Standards: EN 12435:2006, ISO 14971:2007, ISO 13485:2003. Algorithm: Rule-based image processing and segmentation.
Indications for Use
Indicated for use by radiographers, medical imaging technicians, radiologists, and referring physicians to read, analyze, and diagnose DICOM-compliant volumetric medical datasets (CT/MR). Supports visualization, measurement of vessel features, tumor quantification, and tissue analysis. Web-browser access is for non-diagnostic review only; not for clinical decision-making.
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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KB33135
Page 1 of 6
MAR - 7 2014
# 510(K) SUMMARY: IMPAX Volume Viewing
Common/Classification Name: Picture Archiving and Communications System 21CFR 892.2050 Proprietary Name: IMPAX Volume Viewing Agfa HealthCare N.V. Septestraat 27 B-2640 Mortsel Belgium Contact: Koen Cobbaert, Prepared: July 24, 2013 Telephone: +32 3 444 7539
### LEGALLY MARKETED PREDICATE DEVICES A.
This is a 510(k) for Agfa's IMPAX Volume Viewing, which is a picture archiving and communications system. It is substantially equivalent to Agfa's IMPAX Volume Viewing 2.0 (K111638), Agfa's Registration and Fusion (K080013), Agfa's Web1000 (K053458) and Voxar's 3D Enterprise with ColonMetrix and PET/CT Perfusion (K070831).
#### B. DEVICE DESCRIPTION
The new device is similar to the predicate devices. All are PACS system accessories that allow the user to view and manipulate 3D image data sets. This new version includes automated removal of bone-like structures, stenosis measurement and web-browser access.
Principles of operation and technological characteristics of the new and predicate devices are the same.
#### C. INTENDED USE
IMPAX Volume Viewing software is a visualization package for PACS workstations. It is intended to support radiographer, medical imaging technician, radiologist and referring physician in the reading, analysis and diagnosis of DICOM compliant volumetric medical datasets. The software is intended as a general purpose digital medical image processing tool, with optional functionality to facilitate visualization and measurement of vessel features.
Other optional functionality is intended for the registration of anatomical (CT) on functional volumetric image data (MR) to facilitate the comparison of various lesions. Volume and distance measurements are intended for evaluation and quantification of tumor measurements, and other analysis and evaluation of both hard and soft tissues. The software also supports interactive segmentation of a region of interest (ROI).
Web-browser access is available for review purposes. It should not be used to arrive at a diagnosis, treatment plan, or other decision that may affect patient care.
### D. SUBSTANTIAL EQUIVALENCE SUMMARY
Agfa's IMPAX Volume Viewing has an Indications for Use statement largely similar to the statements for the predicate devices (K111638, K053458, K022292, K080013 and K070831), Intended uses are the same. As software accessories to PACS systems, the predicate and new devices have the same technological characteristics. Software is used to identify characteristic patterns within 3D image data which the user can then view and manipulate. Descriptive characteristics and performance data are adequate to ensure equivalence.
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# Agfa HealthCare NV Premarket Notification: IMPAX Volume Viewing 3.0
Differences in devices do not alter the intended therapeutic/diagnostic effect.
| Product Comparison Table - Volume Viewing | | | |
|-------------------------------------------------------------------------------------------------|---------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------|
| | IMPAX<br>Volume Viewing | IMPAX<br>with MPR, Digital<br>Subtraction and 3D, Volume<br>Viewing and Web1000 | Voxar 3D Enterprise<br>with ColonMetrix and<br>PET/CT Perfusion |
| | NEW DEVICE | PREDICATES<br>K022292/K111638/K053458<br>/K080013 | PREDICATE<br>K070831 |
| 3D Volume rendering | × | × | × |
| MPR, CPR | × | × | × |
| MIP, MinIP, AvgIP | × | × | × |
| Fusion and subtraction<br>views | × | × | - |
| Can load and register two<br>data sets for comparison<br>(landmark based,<br>automatic, manual) | × | × | - |
| Multi-modality (CT and<br>MR) image registration | × | × | - |
| Anaglyphic stereo 3D<br>Viewing | × | - | - |
| Segmentation tools | × | × | × |
| Automatic removal of the<br>CT-table | × | × | × |
| Automated removal of<br>bone-like structures | × | - | × |
| Volume measurements | × | × | × |
| Volume measurements via<br>semi-automatic region<br>growing | × | × | × |
| Product Comparison Table - Volume Viewing | | | |
| | IMPAX<br>Volume Viewing<br>NEW DEVICE | IMPAX<br>with MPR, Digital<br>Subtraction and 3D, Volume<br>Viewing and Web1000<br>PREDICATES<br>K022292/K111638/K053458<br>/K080013 | Voxar 3D Enterprise<br>with ColonMetrix and<br>PET/CT Perfusion<br>PREDICATE<br>K070831 |
| Vessel analysis | X | X | X |
| Stenosis measurements | X | - | X |
| DICOM and AVI movie<br>generation | X | X | X |
| Reformat to a new dataset | X | X | X |
| Color maps & Annotations | X | X | X |
| Intra- or internet access<br>for review purposes | X | X | |
| User interface | IMPAX | IMPAX | Voxar |
5 - 4
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Table 1: Device Predicate Comparison
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### TECHNOLOGICAL CHARACTERISTICS E.
IMPAX Volume Viewing 3.0 is an accessory to Agfa's IMPAX PACS systems. It is a general purpose medical image processing tool for the reading and analysis of 3D image datasets. It is the successor to Agfa's Volume Viewing 2.0 (K 111638) and adds the following new functionality: it allows the user to automatically remove bone-like structures to facilitate viewing of soft tissue such as vessels; it allows the user to measure vessel stenosis and to access medical datasets for review purposes through a web-browser.
It is a tool for conveniently viewing and manipulating cross-sectional image series' for display in any orientation and slice thickness. A second series can be registered or fused to the first automatically, manually or with user defined landmarks. Segmentation of blood vessels and airfilled structures facilitate the visualization of vessel features. Color maps, subtraction views, multiple screen layouts and tools for measurement, calculations are provided.
Volume measurement features are present in the previously cleared IMPAX Volume Viewing 2.0. To the range of available volume measurement methods Agfa added semi-automatic region growing. This feature was ported from Agfa's Registration and Fusion application (K080013).
Anaglyphic images are used to provide a stereoscopic 3D effect, when viewed with glasses where the two lenses are different (usually chromatically opposite) colors, such as red and cyan. Images are made up of two color layers, superimposed, but offset with respect to each other to produce a depth effect. The stereoscopic 3D view is available next to the "regular" 3D view. A user can toggle the image from the regular 3D view to stereo 3D. Tests by medical professionals showed that there are no specific medical or clinical benefits to using the stereoscopic 3D view. It is perceived as useful to train medical students, but has no new clinical benefits in comparison to the "regular" 3D view.
### F. TESTING
Verification and validation testing confirm the device meets performance, measurement and usability requirements. No clinical trials were performed in the development of the device.
The device has been designed and manufactured to conform to the following standards:
- EN 12435:2006 Health Informatics Expression of Results of Measurements in Health . Sciences
- ISO 14971:2007 Application of Risk Management to Medical Devices .
- ISO 13485:2003 Medical Devices Quality Management Systems Requirements For . Regulatory purposes
Verification tests for IMPAX Clinical Applications 3.0 and the web-browser component XERO Clinical Applications 1.0 covered all requirements and identified risk control measures. Software verification activities are discussed in the following documents:
- . Verfication Plan IMPAX Clinical Applications 3.0
- . Final Verification Report IMPAX Clinical Applications 3.0
- Verification Plan XERO Clinical Applications 1.0 .
- Final Verification Report XERO Clinical Applications 1.0 -.
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# Agfa HealthCare NV Premarket Notification: IMPAX Volume Viewing 3.0
For this release regression testing assured the different measurement algorithms still provide the same output as the predicates Volume Viewing 2.0 (K111638) and Registration and Fusion (K080013). Testers made identical measurements of diameters, areas and volumes and compared those against reference values. Results met the established acceptance criteria of +/- scanner resolution (for dataset uncertainty).
The filing of the Volume Viewing 2.0 predicate release (K111638) included measurement accuracy tests comparing vessel diameter and area measurements made against that of the predicate Voxar 3D Enterprise.
The filing of the Registration and Fusion predicate release (K080013) included measurement accuracy tests comparing volumes selected by the semi-automatic region growing against the equivalent to Mirage 5.5 (K043441) manufactured by Segami Corporation.
The tests also included crosshair position tests to verify whether viewports link to the same location in every dataset. Results met the established acceptance criteria of half a voxel (for rounding differences across graphic video cards). The measurement plan and results are included in the report: Measurement Accuracy & Crosshair Positioning Test Plan IMPAX Clinical Applications 3.0, Exhibit 5.
# Validation
Concept tests involving 6 medical professionals of 4 different hospitals in Belgium and the Netherlands were asked to score stereoscopic 3D viewing in comparison to "regular" 3D viewing on an earlier version of the product. The tests concluded that both viewing methods are equivalent, but that other than a useful tool to train medical students there is no distinct medical or clinical benefit to using the stereoscopic 3D view over the "regular" 3D viewing.
The application was validated in test labs and hospitals in the United Kingdom, the United States, Ireland and Belgium. 29 medical professionals participated in the validation using 154 anonymized clinical studies. No patient treatment was provided.
Objectives of the validation were to evaluate:
- If the centerline computation in contrast-filled vessels can be adequately traced and if . vessels can be adequately visualized in CT angiography vessel tracking. (Done via a sideby-side comparison with the IMPAX Volume Viewing 2.2 predicate). If the user can determine the amount of stenosis in an artery (Done via a side-by-side comparison with the Voxar 3D predicate)
- If bone-like structures in CT angiography datasets of the thorax. abdomen, pelvis and . upper/lower extremities are adequately removed from view" (done via a side-by-side comparison with the Voxar predicate).
- If the user can perform volume measurements through manual slice-by-slice contouring or . through (semi-) automated segmentation in a user friendly and intuitive way
- If the Image quality of the 2D and 3D image rendering algorithms is adequate (Done via a . side-by-side comparison with the IMPAX Volume Viewing 2.2 predicate)
A scoring scale was implemented and acceptance criteria established. Results met acceptance criteria.
<sup>&</sup>quot; Head and neck cases are not included because the vessels are often anatomically fissed to the bone tissue. Vascular and osseous tissue can then not be reliably separated.
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Validation activities are described in the following Exhibit 5 documents:
- . Design Validation Plan IMPAX Clinical Applications 3.0
- Design Validation Score Sheet Vessel analysis IMPAX Clinical Applications 3.0 .
- Design Validation Score Sheet Bone Removal IMPAX Clinical Applications 3.0 ●
- Design Validation Score Sheet Volume Measurements IMPAX Clinical Applications ● 3.0
- . Design Validation Score Sheet - Image Quality - IMPAX Clinical Applications 3.0
- Design Validation Report IMPAX Clinical Applications 3.0 .
The web browser component was validated by 11 medical professionals using 42 anonymized clinical data sets. The examiners focused on the usability of features and functionalities for the purpose of non-diagnostic review of CT and MR data sets using 3D and multi planar reconstructions. The design validation activities are discussed in:
- Design Validation Plan XERO Clinical Applications 1.03 .
- . Design Validation Report XERO Clinical Applications 1.0
No clinical testing was performed in the development of the new device.
All verification and validation testing has been successfully completed. Results have been reviewed by management and summarized in the report of the Final Design Review - IMPAX Clinical Applications 3.0 and XERO Clinical Applications 1.0, also included in Exhibit 5. Overall results are documented in Section 5 of the Final Design Review.
### G. CONCLUSIONS
This 510(k) has demonstrated Substantial Equivalence as defined and understood in the Federal Food Drug and Cosmetic Act and various guidance documents issued by the Center for Devices and Radiological Health.
<sup>3</sup> The validation plan also describes the test protocol of SPECT/CT and SPECT/MRI image registration and fusion. This functionality is part of IMPAX PET & SPECT Viewing. Agfa is not seeking US market clearance for IMPAX PET & SPECT Viewing. IMPAX PET-SPECT Viewing 3.0 contains no new functionality versus the cleared Registration and Fusion 1.0 (K080013). It retains the functionality of version 1.0.
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DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/6/Picture/1 description: The image shows the logo for the Department of Health & Human Services - USA. The logo features the department's name in a circular arrangement around a symbol. The symbol consists of a stylized human figure with outstretched arms, representing care and protection.
Public Health Service
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G60 Silver Spring, MD 20993-0002
March 7, 2014
Agfa HealthCare N.V. % Mr. Mark Job Responsible Third Party Official Regulatory Technology Services LLC 1394 25" Street NW BUFFALO MN 55313
Re: K133135
Trade/Device Name: IMPAX Volume Viewing 3.0 Regulation Number: 21 CFR 892.2050 Regulation Name: Picture archiving and communications system Regulatory Class: II Product Code: LLZ Dated: February 13, 2014 Received: February 14, 2014
Dear Mr. Job:
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.
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Page 2-Mr. Job
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Small Manufacturers, International and Consumer Assistance at its tollfree number (800) 638 2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR 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 v Division of Small 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/ResourcesforYou/Industry/default.htm.
Sincerely yours,

for
Janine M. Morris Director, Division of Radiological Health Office of In Vitro Diagnostics and Radiological Health Center for Devices and Radiological Health
Enclosure
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## DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration
# Indications for Use
510(k) Number (if known) K133135
Device Name IMPAX Volume Viewing
## Indications for Use (Describe)
IMPAX Volume Viewing software is a visualization package for PACS workstations. It is intended to support radiographer, medical imaging technician, radiologist and referring physician in the reading, and diagnosis of DICOM compliant volumetric medical datasets. The software is intended as a general purpose digital medical image processing tool, with optionality to facilitate visualization and measurement of vessel features.
Other optional functionality is intended for the registration of anatomical (CT) on functional volumetric image data (MR) to facilitate the comparison of various lesions. Volume and distance measurements are intended for evaluation and quantification of tumor measurements, and other analysis and evaluation of both hard and soft tissues. The software also supports interactive segmentation of a region of interest (ROI).
Web-browser access is available for review purposes. Images accessed through a web-browser (via a mobile device or by other means) should not be used to create a diagnosis, treatment plan, or other decision that may affect patient care.
Type of Use (Select one or both, as applicable)
2 Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
# PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON A SEPARATE PAGE IF NEEDED.
### FOR FDA USE ONLY
Concurrence of Center for Devices and Radiological Health (CDRH) (Signature)
This section applies only to requirements of the Paperwork Reduction Act of 1995.
# *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW."
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> Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff@fda.hhs.gov
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FORM FDA 3881 (1/14)
Form Approved: OMB No. 0910-0120 Expiration Date: January 31, 2017 See PRA Statement below.
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.