K063267 · Stentor Inc., A Philips Medical Systems Co. · LLZ · Nov 9, 2006 · Radiology
Device Facts
Record ID
K063267
Device Name
ISITE PACS, V 4. X
Applicant
Stentor Inc., A Philips Medical Systems Co.
Product Code
LLZ · Radiology
Decision Date
Nov 9, 2006
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 892.2050
Device Class
Class 2
Attributes
Software as a Medical Device, 3rd-Party Reviewed
Indications for Use
iSite PACS is an image management system intended to be used by trained professionals, including but not limited to physicians, nurses and medical technicians. The system is a software package used with general purpose computing hardware to acquire, store, distribute, process and display images and associated data throughout a clinical environment. The software performs digital image processing, measurement, communication and storage. Lossy compressed mammographic images and digitized film screen images must not be reviewed for primary image interpretations. Mammographic images may only be interpreted using an FDA approved monitor that offers at least 5 Mpixel resolution and meets other technical specifications reviewed and accepted by FDA.
Device Story
iSite PACS is a software-based image management system operating on general-purpose computing hardware. It acquires, stores, distributes, processes, and displays medical images (CT, MR, NM, US, XA, PET, DX, DR, RF, RT, MG, SC, VL) and associated data via DICOM. Used by physicians, nurses, and technicians in clinical environments to facilitate diagnostic review. Software performs digital image processing and measurements. Output is displayed on clinical workstations to support clinical decision-making and diagnostic interpretation. System supports integration with hospital and radiology information systems.
Clinical Evidence
Bench testing only. No clinical data provided. Safety and effectiveness are supported by design, development, testing, and validation procedures consistent with standard software engineering practices for diagnostic radiological workstations.
Technological Characteristics
Software-based PACS running on off-the-shelf general-purpose computing hardware. Supports DICOM connectivity for image acquisition, storage, and display. Performs digital image processing and measurement functions. Designed for use with standard clinical display monitors (with specific requirements for mammography).
Indications for Use
Indicated for trained professionals (physicians, nurses, technicians) in clinical environments for acquisition, storage, distribution, processing, and display of medical images and data. Contraindicated for primary interpretation of lossy compressed mammographic images and digitized film screen images. Mammographic interpretation requires FDA-approved 5 Mpixel monitors.
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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K063267
510(k) SUMMARY
In accordance with the provisions of the Safe Medical Device Act of 1990, Stentor, Inc., a Philips Medical Systems Company is providing a summary of safety and effectiveness information regarding the iSite PACS software.
- 1.1 Company Identification Stentor, Inc., a Philips Medical Systems Company 5000 Marina Blvd, Suite 100 Brisbane, CA 94005
NOV - 9 2006
## Registration Number: 2954704
- 1.2 Contact Person Deana Wiseman Sr. Manager of Quality and Regulatory Telephone: 650-228-5402 Fax: 650-228-5566
- 1.3 Preparation Date May 18, 2006
## Identification of Product and Classification 1.4 iSite PACS V. 4. X Device Trade Name: Classification Name: Picture Archiving and Communications System Classification Panel: Radiology 892.2050 CRF Section: Device Class: 11 LLZ Product Code:
- Substantial Equivalence 1.5 Manufacturer: General Electric Medical Systems Model: GE Centricity PACS 510(k) Number: K043415
Manufacturer: Eastman Kodak Company Model: Kodak PACS 510(k) Number: K060055
Manufacturer: Stentor, Inc. Model: iSite PACS 3.3 510(k) Number: K042292
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#### 1.6 Device Description and Intended Use
iSite PACS is an image management system intended to be used by trained professionals, including but not limited to physicians, nurses and medical technicians.
The system is a software package used with general purpose computing hardware to acquire, store, distribute, process and display images and associated data throughout a clinical environment. The software performs digital image processing, measurement, communication and storage.
iSite supports receiving, sending, printing, storing and displaying studies received from the following modality types via DICOM: CT, MR, NM, US, XA, PET, DX, DR, RF, RT, MG, SC, VL, as well as hospital/radiology information systems.
## 1.7 Software Development
Stentor certifies that the iSite software is designed, developed, tested and validated according to written procedures. These procedures identify individuals within the organization responsible for developing and approving product specifications, coding and testing, validation testing and field maintenance. The software developed for this product is used to provide diagnostic-quality images and associated information to the intended users.
#### 1.8 Safety and Effectiveness
# 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. It is the user's responsibility to ensure that display quality, environmental lighting and other possible distractions are consistent with the clinical environment. The hardware components specified are all "off the shelf" computer components.
# Conclusion:
iSite is substantially equivalent in design and intended use to diagnostic radiological workstations, PACS and image management systems as substantiated in the feature comparison. Any differences between the iSite PACS software and the equivalent devices have no significant influence on safety or effectiveness. Therefore, iSite PACS raises no new issues of safety or effectiveness from its predicate devices.
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Image /page/2/Picture/1 description: The image shows a logo with a stylized human head composed of three curved lines. The lines are stacked vertically, with each line representing a different part of the head. To the left of the head is text that reads "DEPARTMENT OF HEALTH & HUMAN SERVICES" in a circular arrangement.
Food and Drug Administration 9200 Corporate Blvd. Rockville MD 20850
Stentor, Inc., A Phillips Mcdical System Company % Ms. Laura Danielson Program Manager TÜV Product Service 1775 Old Highway 8 NEW BRIGHTON MN 55112-1891
NOV - 9 2006
Re: K063267
Trade/Device Name: iSite PACS v 4.x Regulation Number: 21 CFR 892.2050 Regulation Name: Picture archiving and communications system Regulatory Class: II Product Code: LLZ Dated: October 25, 2006 Received: October 30, 2006
Dear Ms. Danielson:
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 (Premarket Approval), it may be subject to such 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.
Image /page/2/Picture/10 description: The image is a circular logo or emblem. The text "1906 - 2006" is at the top of the circle. The letters "PA" are in the center of the circle in a bold, sans-serif font. Below the letters, the word "Centennial" is written in a cursive font. There are three stars below the word "Centennial". The entire design is surrounded by a dotted border.
Protecting and Promoting Public Health
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Please be advised that FDA's issuance of a substantial equivalence determination does not mean I that FDA has made a determination that your device complies with other requirements of the Act that I Dri has made a and regulations administered by other Federal agencies. You must of any I coolar statutes and regirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); good manufacturing practice requirements as set CI It I at 007), laooinig (21 OS) regulation (21 CFR Part 820); and if applicable, the electronic forul in the quality systems (Sections 531-542 of the Act); 21 CFR 1000-1050.
This letter will allow you to begin marketing your device as described in your Section 510(k) I ins leter with anow you'ts ough finding of substantial equivalence of your device to a legally premaince notifications of cresults 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 Part 801), please n you don Office of Compliance at one of the following numbers, based on the regulation number at the top of this letter:
| 21 CFR 876.xxx | (Gastroenterology/Renal/Urology | 240-276-0115 |
|----------------|---------------------------------|--------------|
| 21 CFR 884.xxx | (Obstetrics/Gynecology) | 240-276-0115 |
| 21 CFR 894.xxx | (Radiology) | 240-276-0120 |
| Other | | 240-276-0100 |
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). 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 (240) 276-3150
or at its Internet address http://www.fda.gov/cdrl/industry/support/index.html.
Sincerely yours,
Nancy C. Hogdon
Nancy C. Brogdon Director, Division of Reproductive, Abdominal, and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
Page 2 -
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# Indications for Use
510(k) Number: Ko x 3267
Device Name: iSite PACS v 4.x
Indications for Use:
iSite PACS is an image management system intended to be used by trained professionals, including but not limited to physicians, nurses and medical technicians.
The system is a software package used with general purpose computing hardware to acquire, store, distribute, process and display images and associated data throughout a clinical environment. The software performs digital image processing, measurement, communication and storage.
Lossy compressed mammographic images and digitized film screen images must not be reviewed for primary image interpretations.
Mammographic images may only be interpreted using an FDA approved monitor that offers at least 5 Mpixel resolution and meets other technical specifications reviewed and accepted by FDA.
Prescription Use × (Part 21 CFR 801 Subpart D)
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 Device Evaluation (ODE)
Nancy Brogdon
(Division Sign-Off) Division of Reproductive, Abd and Radiological Devices 510(k) Number
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.
