K120331 · Siemens AG Medical Solutions · JAK · Apr 13, 2012 · Radiology
Device Facts
Record ID
K120331
Device Name
SYNGO CT DYNAMIC ANGIO
Applicant
Siemens AG Medical Solutions
Product Code
JAK · Radiology
Decision Date
Apr 13, 2012
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 892.1750
Device Class
Class 2
Attributes
Software as a Medical Device, 3rd-Party Reviewed
Indications for Use
The syngo.CT Dynamic Angio software package has been designed to evaluate CT data which has been continuously acquired with computed tomography (CT) imaging systems. Contrast enhanced CT images are used to visualize the flow of contrast from the arteries to the veins. syngo.CT Dynamic Angio can be used to assist the physician in the diagnosis of blood vessels and it supports in the evaluation of regions of interest, the visual inspection of time attenuation curves, and the creation of specific CT volumes, for example, arterial or venous phase. It will aid in the inspection of diseases which affect the vessel system, for example, vessel stenosis, collateral or late filling of vessels, vascular malformations, control of stent graft extravasation, or in the evaluation of tumor vascularization.
Device Story
Software for visualization/analysis of dynamic CT datasets (Dynamic Sequence, Multiscan, Adaptive 4D Spiral, Heart Perfusion). Inputs: 3D/4D CT image series. Processing: motion correction, bone segmentation, time-series movie generation, CT phase volume creation (e.g., arterial/venous), time-attenuation curve calculation. Outputs: processed CT volumes, time-attenuation curves, snapshots. Used in clinical settings by physicians for vascular diagnosis and treatment planning. Enhances visualization of contrast flow; assists in identifying stenosis, malformations, and tumor vascularization; supports stent graft monitoring. Operates within syngo.via environment using standard display tools (MPR, MIP, VRT).
Clinical Evidence
Bench testing only. Verification and validation testing conducted per IEC 62304 and ISO 14971 standards. Risk analysis and hazard mitigation confirmed through software verification and validation testing. No clinical data presented.
Indicated for use by physicians to evaluate continuously acquired contrast-enhanced CT data for diagnosis of vascular diseases, including vessel stenosis, collateral/late filling, vascular malformations, stent graft extravasation, and tumor vascularization.
Regulatory Classification
Identification
A computed tomography x-ray system is a diagnostic x-ray system intended to produce cross-sectional images of the body by computer reconstruction of x-ray transmission data from the same axial plane taken at different angles. This generic type of device may include signal analysis and display equipment, patient and equipment supports, component parts, and accessories.
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# SIEMENS
# APR 1 3 2012
510(k)
### 510(k) - Summary
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.
#### l, GENERAL INFORMATION
#### Device Name and Classification 1.
Product Name: Classification Name: Classification Panel: CFR Section: Device Class: Product Code:
syngo. CT Dynamic Angio Accessory to Computed Tomography System Radiology 21 CFR §892.1750 Class II 90 JAK
### 2. lmporter/Distributor Establishment: Registration Number: 2240869
Siemens Medical Solutions, Inc. 51 Valley Stream Pkwy Malvern, PA 19355
#### 3. Manufacturing Facility:
Siemens AG Medical Solutions Henkestrasse 127
D-91052 Erlangen, Germany
#### 4. Contact Person:
Mr. Ralf Hofmann
Regulatory Affairs Specialist Siemensstr.1; D-91301 Forchheim Phone: +49 9191 18-8170 · Fax: +49 9191 18-9782
### Date of Preparation of Summary: January 13, 2012 5.
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### 11. SAFETY AND EFFECTIVENESS INFORMATION SUPPORTING THE SUBSTANTIAL EQUIVALENCE DETERMINATION
#### 6. General Safety and Effectiveness Concerns:
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 is ensured via a hazard analysis, which is used to identify potential hazards. These potential hazards are controlled via software development, verification and validation testing. To minimize electrical, mechanical, and radiation hazards, Siemens adheres to recognized and established industry practice and standards.
#### 7. Device Description and Intended Use:
syngo.CT Dynamic Angio is a software, which was developed to visualize dynamic CT datasets in a three and four dimensional view. Possible input data are Siemens CT Dynamic Sequence, Dynamic Multiscan, Adaptive 4D Spiral and Heart Perfusion Scanning datasets.
syngo.CT Dynamic Angio supports the overlay free visualization of the vessel enhancement with the help of motion correction and bone segmentation. The software can be used to run a movie of a time series or to create CT phase volumes (e.g. arterial phase or venous phase) by combining multiple neighboring time points from the dynamic CT data. It also supports the evaluation of regions of interest and the visual inspection of time attenuation curves.
### Indication for Use:
The syngo.CT Dynamic Angio software package has been designed to evaluate CT data which has been continuously acquired with computed tomography (CT) imaging systems. Contrast enhanced CT images are used to visualize the flow of contrast from the arteries to the veins.
syngo.CT Dynamic Angio can be used to assist the physician in the diagnosis of blood vessels and it supports in the evaluation of regions of interest, the visual inspection of time attenuation curves, and the creation of specific CT volumes, for example, arterial or venous phase. It will aid in the inspection of diseases which affect the vessel system, for example, vessel stenosis, collateral or late filling of vessels, vascular malformations, control of stent graft extravasation, or in the evaluation of turnor vascularization.
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#### 8. Substantial Equivalence:
syngo.CT Dynamic Angio software package, designed for post processing images that have been continuously acquired with computed tomography (CT) imaging systems which meet certain minimal requirements, is substantially equivalent to the following devices:
| Manufacturer | Product | 510(k) | Clearance date |
|---------------|-----------------------------------|---------|----------------|
| 1. Siemens AG | syngo® Inspace 4D | K062673 | 22/09/2006 |
| 2. Siemens AG | syngo® Volume Perfusion CT- Body | K092013 | 17/07/2009 |
| 3. Siemens AG | syngo® Volume Perfusion CT- Neuro | K073238 | 03/01/2008 |
### Summary of Technological Characteristics of the Principle Device as Compared ல் with the Predicate Devices
syngo.CT Dynamic Angiois a post-processing software package which provides a combination of functionality similar to functionality provided by one or more of the predicate devices as listed above. It uses the same data for evaluation as the predicate devices and provides results in the same format as the predicate devices
All result volumes created by CT Dynamic Angio are stored in separate series and consist of a set of standard DICOM single frame CT images. All finding snapshot images are stored in a different series as DICOM secondary captures.
As basis for data viewing, syngo.CT Dynamic Angio uses basic reader and image display functionality as provided by syngo.via. Different visualization filters like multiplanar reformatting (MPR, MPR Thick), maximum intensity projection (MIP, MIP Thin) and volume rendering techniques (VRT, VRT Thin) can be applied. Windowing of the visualized data cao be done by mouse interaction and with predefined CT window presets. Zooming and panning of the CT volumes is supported.
In addition to basic viewing capabilities, syngo.CT Dynamic Angio provides tools for visualization, analysis and reporting of vascular conditions.
Standard syngo.via analysis tools are Distance Line, Pixel Lens, Marker, Arrow and ROI (Region of Interest).
Accordingly, syngo.CT Dynamic Angio has equivalent technological characteristics as the predicate devices. Moreover, syngo.CT Dynamic Angio uses image processing algorithms, in order to provide results that are substantially equivalent to those obtained with one or more of the predicate devices.
Siemens is of the opinion that the syngo.CT Dynamic Angio software package is intended for the same indications for use as the predicate devices. It does not introduce any new potential safety risk and is substantially equivalent to and performs as well as the predicate devices.
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### 10. Summary of non-clinical and/or clinical testing
SIEMENS
syngo.CT Dynamic Angiois designed to fullfill the requirements of following standards
- IEC 60601-1-6 : 2006; Medical electrical equipment Part 1-6: General requirements o for basic safety and essential performance - Collateral Standard: Usability
- IEC 62304 : 2006, "Medical Device Software Software Lifecycle Processes" 0
- ISO 14971:2007; Medical devices Application of risk management to medical devices ●
- DICOM (Digital Imaging and Communications in Medicine) Standard: 2008 . DICOM conformity is fully covered by syngo.via implementations.
Non clinical tests are conducted for syngo.CT Dynamic Angio software package during product development. The Risk analysis was completed and risk control implemented to mitigate identified hazards. The testing results supports that all the software specifications have met the acceptance criteria.
Testing for verification and validation of the device was found acceptable to support the claims of substantial equivalence.
510(k)
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Image /page/4/Picture/0 description: The image is a black and white logo for the Department of Health & Human Services USA. The logo features a stylized human figure with three heads, representing the department's focus on health and human services. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" is arranged in a circular pattern around the figure.
# DEPARTMENT OF HEALTH & HUMAN SERVICES
Public Health Service
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room - WO66-G609 Silver Spring, MD 20993-0002
Siemens AG Medical Solutions % Mr. Hubert Stuiber Responsible Third Party Official TÜV SÜD America, Inc. 1775 Old Highway 8 NEW BRIGHTON MN 55112-1891
Re: K120331
Trade/Device Name: syngo.CT Dynamic Angio Regulation Number: 21 CFR 892.1750 Regulation Name: Computed tomography x-ray system Regulatory Class: II Product Code: JAK Dated: March 21, 2012 Received: March 23, 2012
APR 13 2012
### Dear Mr. Stuiber:
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 class II (Special Controls), it may be subject to such additional controls. Existing major regulations affecting your device can be found in Title 21, Code of Federal Regulations (CFR), Parts 800 to 895. 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 Parts 801 and 809); medical device reporting (reporting of
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medical device-related adverse events) (21 CFR 803); and good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820). This letter will allow you to begin marketing your device as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.
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 Diagnostic Device Evaluation and Safety 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,
Janine M. Morris
Acting Director Division of Radiological Devices Office of In Vitro Diagnostic Device Evaluation and Safety Center for Devices and Radiological Health
Enclosure
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## Indication for use
510(k) Number (if known):
Device Name:
## syngo.CT Dynamic Angio
The syngo.CT Dynamic Angio software package has been designed to evaluate CT data which has been continuously acquired with computed tomography (CT) imaging systems. Contrast enhanced CT images are used to visualize the flow of contrast from the arteries to the veins.
syngo.CT Dynamic Angio can be used to assist the physician in the diagnosis of blood vessels and it supports in the evaluation of regions of interest, the visual inspection of time attenuation curves, and the creation of specific CT volumes, for example, arterial or venous phase. It will aid in the inspection of diseases which affect the vessel system, for example, vessel stenosis, collateral or late filling of vessels, vascular malformations, control of stent graft extravasation, or in the evaluation of tumor vascularization.
Prescription Use
### AND/OR
Over-The-Counter Use
Section 2
(Part 21 CFR 801 Subpart D)
•
(Part 21 CFR 801 Subpart D)
(Part 21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of the CDRH, Office of In Vitro Diagnostic Devices (OIVD)
X
ision Sion of In Nitro Diagnostic Device
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Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
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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.
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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.
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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.
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Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
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Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
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Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
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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.
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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.