The Communify PACS Viewer 1.5 is a Picture Archiving and Communications System (PACS) viewer designed to be used to view Digital Imaging and Communications in Media (DICOM), DICOM-RT and non-DICOM information and data. The Communify PACS Viewer 1.5 is a software application that runs on standard "off-the-shell" personal computers, business computers, and servers running standard operating systems. Communify PACS Viewer is an image and display software that accepts DICOM data from any OEM modality which supports DICOM standard imaging data; the system provides the capability to organize images generated by OEM vendor equipment, perform digital manipulations, create graphical representations of anatomical areas, and perform quantitative measurements. Communify PACS Viewer 1.5 is designed to support the use and viewing of DICOM-RT (radiotherapy extensions), such as Structure Set, Contour, Dose, Dose Value Histogram and Plan information. In Communify PACS Viewer 1.5, mammographic images should only be viewed on mammography monitors that are cleared or approved by FDA. Users should not apply lossy compression to mammographic images and only DICOM "for presentation" mammography images may be displayed. Communify PACS Viewer 1.5 does not manipulate or edit any mammography image acquisition system manufacturer's proprietary image processing methods. Please note that Communify PACS Viewer 1.5 does not run on mobile smartphones and tablets.
Device Story
Communify PACS Viewer 1.5 is a software-based PACS viewer for clinical environments; operates on standard off-the-shelf PCs and servers. Inputs: DICOM and DICOM-RT data from OEM modalities. Processing: software-based image manipulation (zoom, pan, triangulation, window/level), annotation, and measurement tools; Hanging Protocol editor for layout configuration. Outputs: visualized medical images, graphical representations, and quantitative measurements on clinical monitors. Used by healthcare professionals for case study review and radiotherapy planning (Structure Set, Dose, DVH, Plan data). Benefits: facilitates efficient image review, organization, and clinical decision-making by providing standardized visualization tools without altering source data.
Clinical Evidence
Bench testing only. Software verification and validation performed per FDA guidance. Functionality confirmed via hazard analysis and comparison of samples with 510(k)-cleared DICOM-RT readers. No clinical data provided.
Technological Characteristics
Software-only PACS viewer; runs on standard off-the-shelf PCs/servers. Supports DICOM/DICOM-RT standards. Features include image manipulation (zoom, pan, window/level), annotation, and measurement tools. Hanging Protocol editor for display layout. No proprietary image processing of mammography data. Connectivity via standard network/DICOM protocols.
Indications for Use
Indicated for use by licensed healthcare professionals to view, manipulate, and measure medical images (DICOM, DICOM-RT, non-DICOM) from various modalities (CR, CT, DX, MR, NM, PT, RF, US, XA). Mammography images require FDA-cleared monitors and "for presentation" DICOM files; lossy compression prohibited. Not for use on mobile smartphones or tablets.
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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5. 510(k) Summary (21 CFR 807.92)
"This summary of 510(k) safety and effectiveness information is being submitted in accordance with the requirements of SMDA 1990 and 21 CFR 807.92."
> 12085 "The assigned 510(k) number is:
| Submitter's name: | Christopher Relyea |
|--------------------------------|-----------------------------------------------------------|
| Submitter's address: | 160 West 71st Street, 18th Floor, New York, NY 10023, USA |
| Phone number: | 646-526-7111 |
| Fax number: | 203-621-3198 |
| Name of contact person: | Christopher Relyea |
| Date the summary was prepared: | 10/18/2012 |
| Device Name/Trade Name: | Communify PACS Viewer 1.5 |
| Common Name: | Medical Image Workstation |
| Classification Name: | 21 CFR 892.2050 |
| Product Code | LLZ |
## Substantially equivalent to the devices are the following:
| Manufacturer | Device | 510(k) |
|---------------------------------------------|---------------------------|---------|
| Flying Squirrel Storage | Communify PACS Viewer 1.0 | K110797 |
| MIM Software Inc. (formerly MIMvista Corp.) | MIMviewer 4.1 | K071964 |
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### Comparison to Predicate Devices
Communify PACS Viewer 1.5 is an extension of the Communify PACS Viewer 1.0 that includes all of the 1.0 version's capabilities, such as the ability to process and display medical images from DICOM compliant modalities such as CR, CT, DX, MR, NM, PT, RF, US, XA, and others. MIM is also a PACS viewer. Like MIM, Communify PACS Viewer 1.5 supports the ability to read and visualize DICOM-RT data files, such as Structure Set, Dose Value Histogram and Plan (Beam) data.
#### Conclusion
Similar to the predicate devices, the Communify PACS Viewer 1.5 system allows the display and measurement of medical images, but does not alter the source data and original image. All devices require that use is restricted to suitably licensed healthcare professionals. It is our conclusion that Communify PACS Viewer 1.5 is significantly comparable to the Communify PACS Viewer 1.0 and MIM devices.
### Device Description
Communify PACS Viewer (version 1.5) is a Picture Archiving and Communications System (PACS) viewer application which allows users to view, manipulate, annocate, transmit to other facilities, print, and animate all manners of DICOM and DICOM-RT images and modalities include, but are not limited to, CR, CT, DX, MR, NM, PT, RF, US, and XA.
Communify PACS Viewer 1.5 contains common image manipulation functions (such as zoom, pan, triangulation, and window/level) and common image labeling tools (including measurements tools, drawing tools, and annotation overlays). The annotation overlay displays all the important metadata (as configured by the user) for each displayed series study. Although annotation fields depend on the modality and the patient study, the Annotation Overlay Template Wizard provides a full list of annotation fields the user can assign into the image display. For RT studies, Communify PACS Viewer 1.5 allows the visualization of the RT Structure Set, Dose, Dose Value Histogram, and Plan data.
There are shortcut keys, toolbars, and right-click menus for easy access to tools and features. The Hanging Protocol editor of the Communify PACS Viewer configures the presentation layout of images on the screen when a study is loaded. This allows commonly used display formats and presets to be saved and easily accessed to allow for faster case study reviews.
### Performance Data
Software verification and validation was performed following FDA guidance for the Content of Premarket Submissions for Software Contained in Medical Devices." Tests were conducted successfully to address issues in the hazard analysis, confirm the functionality in the verification and validation section and to provide comparisons of samples with 510(k)-cleared DICOM-RT readers.
#### Intended Use Statement
Communify PACS Viewer is a Picture Archiving and Communications System (PACS) viewer designed to be
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used to view Digital Imaging and Communications in Media (DICOM-RT and non-DICOM information and data. Communify PACS Viewer is a software application that runs on standard "off-theshelf" personal computers, business computers, and servers running standard operating systems. Communify PACS Viewer is an image and display software that accepts DICOM data from any OEM modality which supports DICOM standard imaging data; the system provides the capability to organize images generated by OEM vendor equipment, perform digital manipulations, create graphical representations of anatomical areas, and perform quantitative measurements.
Communify PACS Viewer is designed to support the use and viewing of DICOM-RT (radiotherapy extensions), such as Structure Set, Contour, Dose, Dose Value Histogram and Plan information.
In Communify PACS Viewer, mammographic images are viewed in mammography monitors that are cleared or approved by FDA. Users should not apply lossy compression to mammographic images and only DICOM "for presentation" mammography images may be displayed. Communify PACS Viewer does not manipulate or edit any mammography image acquisition system manufacturer's proprietary image processing methods.
Please note that Communify PACS Viewer does not run on mobile smartphones and tablets.
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DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/3/Picture/1 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo consists of a stylized eagle with its wings spread, and the words "DEPARTMENT OF HEALTH & HUMAN SERVICES • USA" are arranged in a circle around the eagle. The eagle is black, and the text is also black. The logo is simple and recognizable.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-002
February 19, 2013
Communify Health c/o Chris Relyea 160W 71ST 18 Floor New York, NY 10023
Re: K120851
Trade/Device Name: Communify PACS Viewer (version 1.5) Regulation Number: 21 CFR 892.2050 Regulation Name: Picture archiving and communications system Regulatory Class: Class II Product Code: LLZ Dated: January 30, 2012 Received: February 12, 2013
Dear Mr. Relyea:
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.
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
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Page 2 - Mr. Relyea
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 Parts 801 and 809), please contact the Office of In Vitro Diagnostics and Radiological Health at (301) 796-5450. 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 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/cdrh/industry/support/index.html.
Sincerely yours,
Image /page/4/Figure/5 description: The image shows a logo with the letters FDA in a stylized, geometric design. The letters are interconnected and have a three-dimensional appearance due to the use of parallel lines. The logo is black and white and appears to be a graphic representation of the Food and Drug Administration.
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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# Indications for Use
510(k) Number (if known): K120851 .
Device Name:
Communify PACS Viewer (version 1.5)
Indications for Use:
The Communify PACS Viewer 1.5 is a Picture Archiving and Communications System (PACS) viewer designed to be used to view Digital Imaging and Communications in Media (DICOM), DICOM-RT and non-DICOM information and data. The Communify PACS Viewer 1.5 is a software application that runs on standard "off-the-shell" personal computers, business computers, and servers running standard operating systems. Communify PACS Viewer is an image and display software that accepts DICOM data from any OEM modality which supports DICOM standard imaging data; the system provides the capability to organize images generated by OEM vendor equipment, perform digital manipulations, create graphical representations of anatomical areas, and perform quantitative measurements.
Communify PACS Viewer 1.5 is designed to support the use and viewing of DICOM-RT (radiotherapy extensions), such as Structure Set, Contour, Dose, Dose Value Histogram and Plan information.
In Communify PACS Viewer 1.5, mammographic images should only be viewed on mammography monitors that are cleared or approved by FDA. Users should not apply lossy compression to mammographic images and only DICOM "for presentation" mammography images may be displayed. Communify PACS Viewer 1.5 does not manipulate or edit any mammography image acquisition system manufacturer's proprietary image processing methods.
Please note that Communify PACS Viewer 1.5 does not run on mobile smartphones and tablets.
Prescription Use x (Part 21 CFR 801 Subpart D) AND/OR
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 In Vitro Diagnostics and Radiological Health (OIR)
FDA
(Division Sign Off) Division of Radiological Health Office of In Vitro Diagnostic and Radiological Health 510(k) K120851
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Learn the FDA Browser
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.