K041521 · General Electric Medical Systems · JAK · Jun 22, 2004 · Radiology
Device Facts
Record ID
K041521
Device Name
VOLUME VIEWER PLUS
Applicant
General Electric Medical Systems
Product Code
JAK · Radiology
Decision Date
Jun 22, 2004
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
Volume Viewer Plus is a medical diagnostic software that allows the processing, review, and communication of 3D reconstructed images and their relationship acquired images from CT, MR, X-Ray Angio and PET Scanning devices. The combination of acquired images, reconstructed images, annotations and measurements performed by the clinician are intended to provide to the referring physician clinically relevant information for diagnosis, surgery and treatment planning.
Device Story
Volume Viewer Plus is a software package for GE Advantage Workstation, Centricity PACS, and CT operator consoles. It processes DICOM CT, MR, X-Ray Angio, and PET images. Functionality includes Multi-Planar Reformation (MPR) in orthogonal, oblique, or curved planes; 3D rendering (MIP, MinIP, Average, Volume Rendering, Fly-Through); and correlation with original images. Clinicians use the interface to manipulate, annotate, measure, and record views, and generate exam reports. Features include anatomy segmentation, multi-phase display, and fused hybrid imaging (PET/CT, PET/MR). The software aids referring physicians in diagnosis, surgery, and treatment planning by providing clinically relevant 3D visualizations and quantitative data.
Clinical Evidence
No clinical data. The device relies on software development, validation, and verification processes to ensure performance to specifications and adherence to industry standards.
Technological Characteristics
Software-based medical diagnostic tool for 3D image processing. Operates on GE workstations (Advantage, Centricity PACS, CT consoles). Supports DICOM standard for image input/output. Features include MPR, 3D rendering (MIP, MinIP, Volume Rendering), segmentation, and fused hybrid imaging. Connectivity via standard workstation/PACS network integration.
Indications for Use
Indicated for use by clinicians to process, review, and communicate 3D reconstructed images and original source images from CT, MR, X-Ray Angio, and PET scans for diagnosis, surgery, and treatment planning.
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.
Predicate Devices
Advantage Windows Volume Rendering Option (K972399)
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K041521
JUN 2 2 2004
Image /page/0/Picture/2 description: The image shows the General Electric (GE) logo. The logo consists of the letters "GE" intertwined and enclosed within a circular shape. The letters and the circle are in black, creating a strong contrast. The logo is simple, recognizable, and represents the General Electric brand.
GE Medical Systems
# 510(k) SUMMARY OF SAFETY AND EFFECTIVENESS
This 510(k) summary of safety and effectiveness information is submitted in accordance with the requirements of 21 CFR Part 807.87(h).
| Submitter | Larry A. Kroger, Ph.D.<br>Senior Regulatory Programs Manager<br>Tel: (262) 544-3894<br>Fax: (262) 544-4768<br>GE Medical Systems W-400<br>3000 North Grandview Blvd.<br>Waukesha, WI 53188 USA<br>Date Prepared: March 10, 2004. |
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# PRODUCT IDENTIFICATION
| Name: | Volume Viewer Plus |
|--------------------------------|-------------------------------------------------------------------------------------------------------|
| Classification Name: | Accessory to Computed Tomography System<br>Accessory to Magnetic Resonance diagnostic device |
| Manufacturer : | General Electric Medical Systems<br>283, rue de la Minière<br>78533 Buc Cedex, FRANCE |
| Distributor: | General Electric Medical Systems, Buc, France. |
| Marketed Devices | The Volume Viewer Plus is substantially equivalent to the devices listed below: |
| Model: Manufacturer: 510(k) #: | Advantage Windows Volume Rendering Option<br>General Electric Medical Systems, Buc, France<br>K972399 |
- CT Colonography / Navigator2 Model: .
- General Electric Medical Systems, Buc, France Manufacturer: ● K012313 510(k) #:
# Device Description:
Volume Viewer Plus is a software package to be used on the GE Advantage Workstation, the GE Centricity PACS Workstation and the GE CT Operator Consoles (LightSpeed and HiSpeed). It allows
#### NOMFICHIFR
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the 3D processing, review and analysis of DICOM CT, MR, X-Ray Angio and PET images previously acquired, reconstructed and transferred on the corresponding workstation.
This software provides Multi-Planar Reformation (MPR) views in any plane (orthogonal, oblique or curved), 3D views in any rendering mode (MIP, MinIP, Average, Volume Rendering, Fly-Through) and their correlation to originally acquired images. Its user interface provides the tools to manipulate, annotate, measure and record these views as well as output an exam report. Additional features allow for segmentation of anatomy as well as display of multi-phase and/or fused hybrid images (PET/CT, PET/MR).
# Indications for Use:
Volume Viewer Plus is a medical diagnostic software that allows the processing, review, and communication of 3D reconstructed images and their relationship acquired images from CT, MR, X-Ray Angio and PET Scanning devices. The combination of acquired images, reconstructed images, annotations and measurements performed by the clinician are intended to provide to the referring physician clinically relevant information for diagnosis, surgery and treatment planning.
### Comparison with Predicate:
Volume Viewer Plus is substantially equivalent to the predicate devices listed above and provides additional processing capabilities with standard review protocols per anatomy and acquisition technique (One Touch, Layout Presets, Compare Mode), enhanced segmentation tools (AutoSelect, Multi-Object Volume Rendering), enhanced visualization tools (Fused Display, Dynamic Volume Review, ROI Tool) and finally real-time interactive exporting tools (Batch Reformat/Filming, Movie Builder).
| Device Name | FDA Clearance Number |
|----------------------------------------------|----------------------|
| Advantage Windows Volume Rendering<br>Option | K972399 |
| CT Colonography / Navigator2 | K012313 |
#### Adverse Effects on Health:
The potential hazards are identified in a risk management summary (hazard analysis) and are controlled by:
- · Software Development, Validation and Verification Process to ensure performance to specifications, Federal Regulations and user requirements.
- · Adherence to industry and international standards.
#### Conclusions:
The Volume Viewer Plus does not result in any new potential safety risks and performs as well as devices currently on the market. GE considers features of the Volume Viewer Plus to be equivalent to those of Advantage Windows Volume Rendering Option (K972399) and CT Colonography / Navigator2 (K012313).
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Image /page/2/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo features a stylized depiction of an eagle or bird-like figure with three curved lines representing its body and wings. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged in a circular fashion around the bird symbol.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
# 'JUN 2 2 2004
General Electric Medical Systems % Mr. Tamas Borsai Program Manager TUV Rheinland of North America 1279 Quarry Lane, Suite A PLEASANTON CA 94566
Re: K041521
Trade/Device Name: Volume Viewer Plus Regulation Number: 21 CFR 892.1750 Regulation Name: Computed tomography x-ray system Regulation Number: 21 CFR 892.1000 Regulation Name: Magnetic resonance diagnostic device Regulatory Class: II Product Code: 90 JAK and LNH Dated: June 7, 2004 Received: June 8, 2004
Dear Mr. Borsai:
We have reviewed your Section 510(k) premarket notification of intent to market the device we nave reviewed your boctor. Doctor is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate for use stated in the enatebally) it the enactment date of the Medical Device Amendments, or to commerce pror to they 20, 2014 11:47 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 I ou may, merciore, mains of the Act include requirements for annual registration, listing of general controls provisions 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 If your device is olassinod (social controls. Existing major regulations affecting your device can may be subject to back access as 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 i hat FDA has made a determination that your device complies with other requirements of the Act that FDA has made a doternmantin that Juni 1978 - 1999 - 1991 - 1991 - 1999 - 1999 - 1999 - 19 or any I odolar statuted and not including, but not limited to: registration and listing (21 CFR Part with an the Ace 3 requirements, measure manufacturing practice requirements as set forth in the 607); laooning (21 CFR Part 820); and if applicable, the electronic product quality systems (QB) regular(Sections 531-542 of the Act); 21 CFR 1000-1050.
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This letter will allow you to begin marketing your device as described in your Section 510(k) This letter will anow you to ogen marketing of substantial equivalence of your device to a legally premarket notification. The PDF maining of easification 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 Part 801), please If you desire specific advice for your an of the following numbers, based on the regulation number at the top of the letter:
| 8xx. 1xxx | (301) 594-4591 |
|----------------------------------|----------------|
| 876.2xxx, 3xxx, 4xxx, 5xxx | (301) 594-4616 |
| 884.2xxx, 3xxx, 4xxx, 5xxx, 6xxx | (301) 594-4616 |
| 892.2xxx, 3xxx, 4xxx, 5xxx | (301) 594-4654 |
| Other | (301) 594-4692 |
Additionally, for questions on the promotion and advertising of your device, please contact the Additionally, for questions on the promote the regulation entitled, "Misbranding Other of Compliance at (2017 97) 97 100 100 100 100 100 100 100 100 100 100 100 by relected to premarket neumoution (er the Act may be obtained from the Division of Small mornlation on your responsional and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html.
Sincerely yours,
Nancy C. Brydon
Nancy C. Brogdon Director, Division of Reproductive, Abdominal and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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K04 1521
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General Electric Medical Systems
# STATEMENT OF INDICATION FOR USE
Device name: Volume Viewer Plus
### Indication for Use:
510(k) Number _
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(PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE II NEEDED!
Concurrence of CDRH, Office of Device Evaluation (ODE)
Prescription Use
21 CFR 801.109)
-OR-
Over-The-Counter Use (Per
(Division Sign-Off)
Division of Reproductive, Abdominal,
and Radiological Devices
jerome Browsing 16 Apr 2004
11
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.