K173897 · Siemens Medical Solutions USA, Inc. · LLZ · Apr 5, 2018 · Radiology
Device Facts
Record ID
K173897
Device Name
syngo.via MI Workflows
Applicant
Siemens Medical Solutions USA, Inc.
Product Code
LLZ · Radiology
Decision Date
Apr 5, 2018
Decision
SESE
Submission Type
Special
Regulation
21 CFR 892.2050
Device Class
Class 2
Attributes
Software as a Medical Device
Indications for Use
syngo.via MI Workflows are medical diagnostic applications for viewing, manipulation, 3D- visualization and comparison of medical images from multiple imaging modalities and/or multiple time-points. The application supports functional data, such as PET or SPECT as well as anatomical datasets, such as CT or MR. syngo.via MI Workflows enable visualization of information that would otherwise have to be visually compared disjointedly. syngo.via MI Workflows provide analytical tools to help the user assess, and document changes in morphological or functional activity at diagnostic and therapy follow-up examinations. syngo.via MI Workflows can perform harmonization of SUV (PET) across different PET systems or different reconstruction methods. syngo.via MI workflows support the interpretation of examinations and follow up documentation of findings within healthcare institutions, for example, in Radiology, Nuclear Medicine and Cardiology envirents. Note: The clinician retains the ultimate responsibility for making the pertinent diagnosis based on their standard practices and visual comparison of the separate unregistered images. syngo.via MI Workflows are a complement to these standard procedures.
Device Story
Software-only diagnostic application; installed on Siemens syngo.via platform. Inputs: medical images from PET, SPECT, CT, MR. Transforms inputs via visualization, 3D rendering (MIP, volume rendering), and analytical tools for morphological/functional assessment. Outputs: visualized images, quantitative data (e.g., SUV harmonization, bariatric SUV, total SPECT activity). Used in clinical environments (Radiology, Nuclear Medicine, Cardiology) by clinicians. Assists in interpreting examinations and documenting findings; supports therapy follow-up. Benefits: enables integrated visualization of disjointed data; provides standardized quantification for longitudinal assessment.
Clinical Evidence
Bench testing only. Verification and validation activities confirmed software functions as designed, performance requirements met, and hazard mitigations implemented. No clinical data presented.
Technological Characteristics
Software-only application; runs on Siemens syngo.via platform. Connectivity: DICOM (NEMA PS 3.1-3.20). Standards: IEC 62304 (software lifecycle), ISO 14971 (risk management), IEC 62366 (usability). Features: Hybrid VRT/MIP fusion, Deauville evaluation scale, parametric PET visualization/quantification, bariatric SUV, SPECT total activity calculation.
Indications for Use
Indicated for use by clinicians in healthcare institutions (Radiology, Nuclear Medicine, Cardiology) to view, manipulate, 3D-visualize, and compare medical images (PET, SPECT, CT, MR) from multiple modalities or time-points to assess and document morphological or functional activity changes.
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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Siemens Medical Solutions USA, Inc. Veronica Padharia Regulatory Affairs Specialist 810 Innovation Drive Knoxville, Tennessee 37932
April 5, 2018
Re: K173897
Trade/Device Name: syngo.via MI Workflows Regulation Number: 21 CFR 21CFR 892.2050 Regulation Name: Picture archiving and communications system Regulatory Class: Class II Product Code: LLZ Dated: December 21, 2017 Received: December 22, 2017
Dear Veronica Padharia:
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 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);
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## Page 2 - Veronica Padharia
and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
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.
For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/) and CDRH Learn (http://www.fda.gov/Training/CDRHLearn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (http://www.fda.gov/DICE) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
Michael D. O'Hara
For
Robert Ochs, Ph.D. 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)
#### K173897
Device Name syngo.via MI Workflows VB30A
#### Indications for Use (Describe)
syngo.via MI Workflows are medical diagnostic applications for viewing, manipulation, 3D- visualization and comparison of medical images from multiple imaging modalities and/or multiple time-points. The application supports functional data, such as PET or SPECT as well as anatomical datasets, such as CT or MR.
syngo.via MI Workflows enable visualization of information that would otherwise have to be visually compared disjointedly. syngo.via MI Workflows provide analytical tools to help the user assess, and document changes in morphological or functional activity at diagnostic and therapy follow-up examinations. syngo.via MI Workflows can perform harmonization of SUV (PET) across different PET systems or different reconstruction methods.
syngo.via MI workflows support the interpretation of examinations and follow up documentation of findings within healthcare institutions, for example, in Radiology, Nuclear Medicine and Cardiology envirents.
Note: The clinician retains the ultimate responsibility for making the pertinent diagnosis based on their standard practices and visual comparison of the separate unregistered images. syngo.via MI Workflows are a complement to these standard procedures.
| Type of Use (Select one or both, as applicable) | |
|-------------------------------------------------|-----------------------------------------------------------------------------------------------------------|
| | <span> <span style="font-size: 10pt;">☑</span> Prescription Use (Part 21 CFR 801 Subpart D) </span> |
| | <span> <span style="font-size: 10pt;">☐</span> Over-The-Counter Use (21 CFR 801 Subpart C) </span> |
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# 510(k) Summary
as required by 21 CFR Part 807.87(h)
## Identification of the Submitter
| | Primary Contact: | Alternate Contact: |
|-----------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Submitter: | Veronica Padharia<br>Regulatory Affairs Specialist<br>Siemens Medical Solutions<br>USA, Inc.<br>Molecular Imaging<br>810 Innovation Drive<br>Knoxville, TN 37932 | Alaine Medio<br>PET and PCS Regulatory<br>Projects Manager<br>Siemens Medical Solutions<br>USA, Inc.<br>Molecular Imaging<br>810 Innovation Drive<br>Knoxville, TN 37932 |
| Telephone Number: | (630) 877 - 5761 | (865) 218 - 2703 |
| Fax Number: | (865) 218 - 3019 | (865) 218 - 3019 |
| Name / Address of<br>Manufacturer | Siemens Medical Solutions USA, Inc<br>Molecular Imaging<br>2501 N. Barrington Road<br>Hoffman Estates, IL 60192<br>USA | |
| Date of Submission: | December 21st, 2017 | |
| Identification of the product | | |
| Device Proprietary Name: | syngo.via MI Workflows VB30A | |
| Common Name: | Image Processing Software | |
| Classification Name: | Picture Archiving and Communication System per 21 CFR<br>892.2050 | |
| Product Code: | LLZ | |
| Classification Panel: | Radiology | |
| Device Class: | Class II | |
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## Marketed Devices to which Equivalence is claimed
| Device | Manufacturer | 510(k) Number |
|--------------------------------|------------------------------------|------------------------|
| syngo.via MI<br>Workflows VB20 | Siemens Medical Solutions USA, Inc | K163421 (January 2017) |
#### Device Description
The syngo.via MI Workflows are software only medical devices which will be delivered on CD-ROM / DVD to be installed onto the commercially available Siemens syngo.via software platform by trained service personnel.
syngo.via MI Workflows is a medical diagnostic application for viewing, manipulation, 3Dvisualization and comparison of medical images from multiple imaqinq modalities and/or multiple time-points. The application supports functional data, such as PET or SPECT as well as anatomical datasets, such as CT or MR. The images can be viewed in a number of output formats including MIP and volume rendering.
syngo.via MI Workflows enable visualization of information that would otherwise have to be visually compared disjointedly. synqo.via MI Workflows provide analytical tools to help the user assess, and document changes in morphological or functional activity at diagnostic and therapy follow-up examinations. They additionally support the interpretation and evaluation of examinations and follow up documentation of findings within healthcare institutions, for example, in Radiology (Oncology), Nuclear Medicine and Cardiology environments.
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The modifications to the syngo.via MI Workflows (K163421) include the following new features:
| Workflow | Workflow-specific Features | Common<br>Features |
|----------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------|
| MM Oncology | Hybrid VRT/MIP display which allows the fusion of<br>anatomical VRT with functional MIP<br>Deauville Evaluation scale for staging and assessing<br>treatment response in Hodgkin/non-Hodgkin<br>lymphomas.<br>Visualization and Quantification of Parametric PET<br>datasets<br>Bariatric SUV provides quantification for bariatric<br>patients<br>Total Activity for SPECT to indicate the amount of<br>activity within a segmentation boundary<br>Improvements to already existent features / tools<br>within the MM Oncology workflow. | DoD ATO<br>(Authorization to<br>Operate)<br>Readiness |
| MI Neurology | Usability Improvements<br>Integrating the latest Scenium VE20 software (510k<br>pending; K173597) | |
| MI Cardiology | Updates to 3rd party software | |
| MI Reading /<br>SPECT Processing | Gastric Enhancement tools and fixes | |
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## Technological Characteristics
The syngo.via MI Workflows VB30A software modifications are based on the commercially available syngo.via MI Workflows VB20 software (K163421). The features introduced into syngo.via VB30A had no impact on the technological characteristics already present in the commercially available predicate system.
syngo.via MI Workflows is intended to be run on the Siemens syngo.via software platform (K150843) either alone or with other advanced commercially cleared applications.
## Performance Testing / Safety and Effectiveness
The device labeling contains instructions for use and any necessary cautions and warnings to provide for safe and effective use of the device.
Risk Management has been ensured via risk analyses in compliance with ISO 14971 to identify and provide mitigation to potential hazards beginning early in the design cycle and continuing throughout the development of the product. Siemens Medical Solutions, USA Inc. adheres to recognized and established industry standards for development including EN ISO 13485 and IEC 62304.
Verification and Validation activities have been successfully performed on the software packaqe, including assurance that functions work as designed, performance requirements and specifications have been met, and that all hazard mitigations have been fully implemented. All testing has met the predetermined acceptance values. Traceability of the requirements specified in the requirement specifications and functional specifications is ensured during component integration, software validation and system testing.
The device is designed and manufactured in accordance with Quality System Requlations as outlined in 21 CFR 820. The FDA recognized standards are listed as follows:
- Recognition Number 13-32: IEC 62304:2006
- Recognition Number 13-79: IEC 62304 Edition 1.1 2015-06 ●
- Recognition Number 12-300: NEMA PS 3.1 - 3.20 (2016)
- o Recognition Number 5-70: AAMI ANSI ISO 14971:2007|(R)2010 (Corrected 4 October 2007)
- Recognition Number 5-67: IEC 62366:2007/(R) 2013
- Recognition Number 5-96: IEC 62366-1:2015
- Recognition Number 5-118: AAMI ANSI ISO 15223-1:2016
#### Indications for Use
syngo.via MI Workflows are medical diaqnostic applications for viewing, manipulation, 3Dvisualization and comparison of medical images from multiple imaqinq modalities and/or multiple time-points. The application supports functional data, such as PET or SPECT as well as anatomical datasets, such as CT or MR.
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syngo.via MI Workflows enable visualization of information that would otherwise have to be visually compared disiointedly. syngo.via MI Workflows provide analytical tools to help the user assess, and document changes in morphological or functional activity at diagnostic and therapy follow-up examinations. syngo.via MI Workflows can perform harmonization of SUV (PET) across different PET systems or different reconstruction methods.
syngo.via MI Workflows support the interpretation and evaluation of examinations and follow up documentation of findings within healthcare institutions, for example, in Radiology, Nuclear Medicine and Cardiology environments.
Note: The clinician retains the ultimate responsibility for making the pertinent diagnosis based on their standard practices and visual comparison of the separate unreqistered images. syngo.via MI Workflows are a complement to these standard procedures.
## Statement Regarding Substantial Equivalence:
There are no differences in the Indications for Use or Fundamental Technological Characteristics of the synqo.via MI Workflows as compared to the currently commercially available software (K163421). Both devices are used for viewing, manipulation, 3Dvisualization and comparison of medical images from multiple imaqinq modalities and/or multiple time-points
Additionally, there have been no changes that raise any new issues of safety and effectiveness as compared to the predicate device. Based on this information, as well as the documentation in support of the modifications, it is Siemens opinion that the syngo.via MI Workflows software with the modifications outlined in this application is substantially equivalent to the predicate device.
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.