The Workspace is intended for use in conjunction with 3TP's proprietary post processing pharmacokinetic analysis software (FDA 510(k) number: K03150) to provide additional mathematical and/or statistical information specific to a particular region within a 3TP color-coded image. The Workspace does not change the original 3TP Software algorithm or the image series produced by the 3TP algorithm. The Workspace supports the analysis and presentation of datasets generated by 3TP Software algorithm and incorporates the following functions: Pixel of Interest curve (POI), Region of Interest curve (ROI), Report Card, Volume Calculation, 3TP Histogram, and 3-D visualization of 3TP data series.
Device Story
Workspace is post-processing software for MRI datasets previously analyzed by 3TP pharmacokinetic software (K03150). Input: 3TP-generated color-coded image series. Operation: provides tools for Pixel/Region of Interest (POI/ROI) intensity curves, Report Card (pixel classification/counting), Volume Calculation, 3TP Histogram (Permeability/Extracellular Volume Fraction), Heterogeneity Analysis, and 3D visualization (MIP). Used in clinical settings by radiologists. Output: graphs, statistical reports, and 3D visualizations. Workflow: organizes sequential tasks for lesion characterization and reporting. Benefit: streamlines diagnosis by providing quantitative data on contrast kinetics and tissue heterogeneity without altering original 3TP algorithm outputs.
Clinical Evidence
No clinical data. Performance testing relies on integration testing, verification, and beta validation of software functionality.
Technological Characteristics
Post-processing software for MR imaging. Functions include ROI/POI curve generation, pixel classification, volume measurement, and 3D visualization. Operates on datasets generated by 3TP pharmacokinetic software. No hardware components; software-only device.
Indications for Use
Indicated for use by radiologists to provide mathematical and statistical analysis of MRI datasets previously processed by 3TP pharmacokinetic software. Assists in lesion characterization and diagnosis by quantifying contrast kinetics, volume, and heterogeneity within specified regions of interest.
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).
Predicate Devices
GE Advantage Windows With Functool Option (K960265)
GE Prostate Spectroscopy and Imaging Exam (PROSE) (K011604)
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Image /page/0/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES • USA" arranged around the perimeter. Inside the circle is a stylized graphic of three human profiles facing to the right, stacked one above the other.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
SEP 1 4 2005
Mr. Michael M. Kochian Management Representative, Ouality Assurance and Regulatory Affairs 3TP Imaging Sciences 245 Main Street, Suite #620 WHITE PLAINS NY 10601
Re: K050862
Trade/Device Name: Workspace Regulation Number: 21 CFR §892.2050 Regulation Name: Picture archiving and communications system Regulatory Class: II Product Code: LLZ Dated: June 22, 2005 Received: June 27, 2005
Dear Mr. Kochian:
This letter corrects our substantially equivalent letter of July 25, 2005.
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 (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
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### Page 2 - Mr. Michael Kochian
(21 CFR Part 807); labeling (21 CFR Part 801); good manufacturing practice requirements as set 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. This letter will allow you to continue 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 Part 801), please contact the Office of Compliance at one of the following numbers, based on the regulation number at the top of this letter:
| 21 CFR 876.xxxx | (Gastroenterology/Renal/Urology) | 240-276-0115 |
|-----------------|----------------------------------|--------------|
| 21 CFR 884.xxxx | (Obstetrics/Gynecology) | 240-276-0115 |
| 21 CFR 892.xxxx | (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 (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/industry/support/index.html
· Sincerely yours,
Nancy C. Brogdon
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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# ATTACHMENT 7 Indications for Use Statement
510(k) Number (if known):__K با کا کا کا کا ک
Device Name: Workspace
Indications for Use:
The Workspace is intended for use in conjunction with 3TP's proprietary post processing pharmacokinetic analysis software (FDA 510(k) number: K03150) to provide additional mathematical and/or statistical information specific to a particular region within a 3TP color-coded image. The Workspace does not change the original 3TP Software algorithm or the image series produced by the 3TP The Workspace supports the analysis and presentation of datasets algorithm. generated by 3TP Software algorithm and incorporates the following functions: Pixel of Interest curve (POI), Region of Interest curve (ROI), Report Card, Volume Calculation, 3TP Histogram, and 3-D visualization of 3TP data series.
The POI and ROI curve functions provide contrast enhancement data for a specific pixel or region of interest within the MRI image series. Whereas the POI function measures signal intensity enhancement for a specific pixel, the ROI function averages the enhancement in signal intensity for a manually specified region (several pixels). In both cases, the Workspace presents a graph depicting the percent change in intensity through all time points.
The Report Card function classifies, counts and calculates the percentage of pixels of a given color and intensity in a single or in multiple slices for any manually specified region of interest. The Report Card offers the ability to evaluate a subset of the data originally generated by the 3TP algorithm in a numbers based, non-image presentation format. The Report Card assists the user by providing number based data of the contrast kinetics of a specified region identified by the radiologist in order to further aid in his diagnosis.
The Volume Calculation function allows the user to measure the volume of a region in multiple image slices specified by the radiologist.
The "3TP Histogram" is used to simultaneously display measurements of two physiological parameters found from a full pharmacokinetic analysis of the dynamic behavior of voxels in a chosen ROI. Each bin in the histogram shows the total number of voxels from the designated ROI with corresponding Permeability (PERM) and Extracellular Volume Fraction (EVF). Two solid lines on the histogram plot show the Blue/Green and Green/Red separations of the map: That is, voxels in the bins of red section are colored red on 3TP-color maps based on full analysis.
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The Heterogeneity Analysis provides a standardized statistical analysis of the varving populations of color hue and color intensity within a specified region or volume of interest. This function assists the radiologist in determining the degree of heterogeneity or homogeneity of a user specified region in terms of the color-coded pixels that are contained within. If the Full Analysis was performed, Heterogeneity Analysis may be performed also for Permeability and EVF of voxels within specified ROI.
The Workspace product serves as a workflow roadmap tool that organizes and guides the radiologist through the series of sequential tasks that must be performed in order to arrive at a diagnosis. The specific configuration of product features drives the Workspace's underlying workflow solution for lesion characterization and reporting. This inherent workflow regime integrates easily into the radiologist's existing departmental workflow and can be adapted to fit the needs of each user, thereby streamlining diagnosis.
The 3-D Visualization tool provides colored Maximum Intensity Projections (MIP) or other 3D visualization tools that are specific to the 3TP image datasets.
### (PLEASE DO NOT WRITE BELOW THIS LINE -- CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Prescription Use _ L
OR
Over-The-Counter Use
(Per 21 C.F.R. 801.109)
(Optional Format 1-2-96)
Nancy C. Brogdon
Division Sign Off Division of Reproduct and Radiological Devic Number
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## ATTACHMENT 7
### Summary of Information Respecting Safety And Effectiveness JUL 2 5 2005
This 510(K) summary of safety and effectiveness information is submitted in accordance with the requirements of 21 CFR Part 807.87(h).
| Contact: | Vincent J. McGill |
|------------------|-------------------------------------------------------------|
| Phone: | (212) 779-9910 |
| Fax; | (212) 779-9928 |
| Product: | 3TP Workspace<br>Imaging Processing Software for MR Devices |
| Manufactured by: | 3TP LLC |
| Distributed by: | 3TP LLC |
#### Indications for Use 1)
The 3TP Workspace is intended for use in conjunction with 3TP's proprietary post processing pharmacokinetic analysis software (FDA 510(k) number: K03150) to provide additional mathematical and/or statistical information specific to a particular region within a 3TP color-coded image. The 3TP Workspace does not change the original 3TP Software algorithm or the image series produced by the 3TP algorithm. The 3TP Workspace supports the analysis and presentation of datasets generated by 3TP Software algorithm and incorporates the following functions: Region of Interest curve (ROI), Pixel of Interest curve (POI), Report Card, Volume Calculation, Statistical Analysis, and 3-D visualization of 3TP data series.
The POI and ROI curve functions provide contrast enhancement data for a specific pixel or region of interest within the MRI image series. Whereas the POI function measures signal intensity enhancement for a specific pixel, the ROI function averages the enhancement in signal intensity for a manually specified In both cases, the 3TP Workspace presents a graph region (several pixels). depicting the percent change in intensity through all time points.
The Report Card function classifies, counts and calculates the percentage of pixels of a given color and intensity in a single or in multiple slices for any manually specified region of interest. The Report Card offers the user the ability to evaluate a subset of the data originally generated by the 3TP algorithm in a numbers based, non-image presentation format. The Report Card assists the user by providing number based data of the contrast kinetics of a specified region identified by the radiologist in order to further aid in his diagnosis.
The Volume Calculation function provides the user to measure the volume of a region in multiple image slices specified by the radiologist.
The Statistical Analysis provides a standardized statistical analysis of the varying populations of color hue and color intensity within a specified region or volume of interest. This function assists the radiologist in determining the degree of
{5}------------------------------------------------
heterogeneity or homogeneity of a user specified region in terms of the color-coded pixels that are contained within.
The 3-D Visualization tool provides colored Maximum Intensity Projections (MIP) or other 3D visualization tools that are specific to the 3TP image datasets.
#### Device Description 2)
3TP Workspace is intended to be used as post processing software designed to receive 3TP specific series and provide additional tools to analyze those 3TP series. 3TP itself, supports the evaluation of dynamic MR data gathered during the injection of a bolus of contrast media. The resulting time course information can be displayed in a variety of formats, including a parametric image overlaid onto source MR images.
#### Marketing History 3)
The software has not yet been marketed.
#### Predicate Devices 4)
| GE Advantage Windows<br>With Functool Option<br>(K960265)<br>GE Medical Systems<br>300 N. Grandview Blvd.<br>Waukesha, WI 53186 | GE Prostate Spectroscopy<br>and Imaging Exam (PROSE)<br>(K011604)<br>GE Medical Systems<br>300 N. Grandview Blvd.<br>Waukesha, WI 53186 | Philips EasyVision<br>(Quantitative Analysis<br>Option) (K971965)<br>Philips Medical Systems<br>575 East Sunset Way<br>Issaquah, WA 98027 |
|---------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------|
|---------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------|
Similar to each of the named predicate devices the 3TP Workspace provides a post-processing means for analyzing changes in signal intensity of a contrast agent as reflected in MR images. The use of the 3TP Workspace does not result in any additional hazards, compared to the other post-processing software packages (Functool, PROSE and Philips EasyVision) currently being marketed by GE Medical Systems, and Philips Medical Systems. The 3TP Workspace does not include any new indications for use nor does the use of this device result in any new potential hazards.
#### Performance Testing 5.
The 3TP Workspace will successfully complete integration testing and verification prior to beta validation and the software beta testing will be successfully completed validating the 3TP Workspace prior to market release.
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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.