The GE Optima NM/CT 640 system is a medical tool intended for use by appropriately trained healthcare professionals to aid in detecting, localizing, diagnosing of diseases and in assessment of organ function for the evaluation of diseases, trauma, abnormalities, and disorders such as, but not limited to, cardiovascular disease, neurological disorders and cancer. The system output can also be used by the physician for staging and restaging of tumors, planning, guiding, and monitoring therapy. The GE Optima NM/CT 640 system is a Nuclear Medicine (NM) system, which is intended to yield General Nuclear Medicine imaging procedures for detection of radioisotope tracer uptake in the patient body, using a variety of scanning modes supported by various acquisition types and imaging features designed to enhance image quality. The scanning modes include planar mode (Static, Multi-gated, Dynamic and Whole body scanning) and tomographic mode (SPECT, Gated SPECT, Whole body SPECT). The acquisition types include single and multi-isotope/multi peak frame/list mode single-photon imaging-enhancement features include an assortment of collimators, gating by physiological signals, and real-time automatic body contouring. The GE Optima NM/CT 640 system includes an integrated CT, which is intended specifically for attenuation correction and anatomical localization purposes only, a processing and review workstation, and may include signal analysis and display equipment, patient and equipment supports, components and accessories. The system may be used for patients of all ages. Utilizing the associated CT portion and post processing, the device can produce attenuation corrected SPECT images using CT-based attenuation maps, as well as functional and anatomical mapping images registered with the SPECT images for purposes of localization and fusion. The device does not support stand-alone CT operation.
Device Story
Optima NM/CT 640 is a hybrid imaging system combining a SPECT gamma camera and a 4-slice CT subsystem. Input includes radioisotope tracer signals (SPECT) and X-ray attenuation data (CT). The system performs planar and tomographic (SPECT/Gated SPECT) imaging; CT data is used exclusively for attenuation correction and anatomical localization of SPECT images. Operated by trained healthcare professionals in clinical/hospital settings. Output consists of registered functional (SPECT) and anatomical (CT) images displayed on a workstation (Xeleris 3). Physicians use these outputs to diagnose disease, stage tumors, and guide therapy. Benefits include improved image quality via attenuation correction and precise anatomical localization of functional tracer uptake. The system features real-time automatic body contouring and physiological gating.
Clinical Evidence
Bench testing only. No clinical data provided. Compliance with recognized voluntary standards and GE quality system design controls (risk analysis, requirements/design reviews, module/system integration/performance/safety testing) used to support substantial equivalence.
Indicated for patients of all ages for detection, localization, and diagnosis of diseases, trauma, abnormalities, and disorders (e.g., cardiovascular, neurological, cancer) and assessment of organ function. Used for tumor staging/restaging and therapy planning/monitoring. Contraindications not specified.
Regulatory Classification
Identification
An emission computed tomography system is a device intended to detect the location and distribution of gamma ray- and positron-emitting radionuclides in the body and produce cross-sectional images through computer reconstruction of the data. This generic type of device may include signal analysis and display equipment, patient and equipment supports, radionuclide anatomical markers, component parts, and accessories.
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K12109
APR 1 9 2012
#### 510(k) Summary
In accordance with 21 CFR 807.92 the following summary of information is provided:
March 8, 2012 Date: Submitter: GE Healthcare, GE Medical Systems Israel, Functional Imaging 4 HAYOZMA St TIRAT HACARMEL, 30200, ISRAEL Primary Contact Person: Eli Werner Regulatory Affairs Leader GE Healthcare, GE Medical Systems Israel, Functional Imaging +972-4-8563666 +972-4-8577664 Secondary Contact Person: John Jaeckle Chief Regulatory Affairs Strategist GE Healthcare 262-424-9547 Device: Trade Name: Optima NM/CT 640 Common/Usual Name: Single Photon Emission Computed Tomography (SPECT ) & Computed Tomography X-Ray (CT) Classification Names: 21CFR 892.1200 & 21CFR 892.1750 90 KPS & 90 JAK Product Code: Predicate Device(s): K111445- Discovery NM 630 and K052434- Hawkeve 4 Option for Dual-Head Variable Angle Gamma Camera Device Description: The Optima NM/CT 640 system is a combination of the Discovery NM630 gamma camera (K111445), the certified table from the Discovery NM/CT 670 (K093514) and a 4 slice CT subsystem containing previously certified components. It consists of two back-to-back gantries, a single table, a single power distribution unit, a console with single acquisition system and associated accessories (e.g. ECG gating. Table Extender. Head Holder, etc.). The system is delivered with a processing and review workstation (currently Xeleris 3-K093982). The system is intended to be in clinics or hospitals having normal HVAC controls.
> The GE Optima NM/CT 640 system is intended for General Intended Use: Medicine imaging procedures for detection of Nuclear radioisotope tracer uptake in the patient body. It includes a general purpose Nuclear Medicine (NM) system using a variety of scanning modes supported by various acquisition types, and a CT component which is intended specifically for enabling
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attenuation correction and anatomical localization on SPECT studies.
The GE Optima NM/CT 640 system is a medical tool intended Indications for Use: for use by appropriately trained healthcare professionals to aid in detecting, localizing, diagnosing of diseases and in assessment of organ function for the evaluation of diseases, trauma, abnormalities, and disorders such as, but not limited to, cardiovascular disease, neurological disorders and cancer. The system output can also be used by the physician for staging and restaging of tumors, planning, guiding, and monitoring therapy.
> The GE Optima NM/CT 640 system is a Nuclear Medicine (NM) system, which is intended to yield General Nuclear Medicine imaging procedures for detection of radioisotope tracer uptake in the patient body, using a variety of scanning modes supported by various acquisition types and imaging features designed to enhance image quality. The scanning modes include planar mode (Static, Multi-gated, Dynamic and Whole body scanning) and tomographic mode (SPECT, Gated SPECT, Whole body SPECT). The acquisition types include single and multiisotope/multi peak frame/list mode single-photon imaging. The imaging-enhancement features include an assortment of collimators, gating by physiological signals, and real-time automatic body contouring.
> The GE Optima NM/CT 640 system includes an integrated CT. which is intended specifically for attenuation correction and anatomical localization purposes only, a processing and review workstation, and may include signal analysis and display equipment, patient and equipment supports, components and accessories. The system may be used for patients of all ages.
> Utilizing the associated CT portion and post processing, the device can produce attenuation corrected SPECT images using CT-based attenuation maps, as well as functional and anatomical mapping images registered with the SPECT images for purposes of localization and fusion.
The device does not support stand-alone CT operation.
The Optima NM/CT 640 utilizes the same fundamental scientific Technology: technology as its predicate devices: the Nuclear Medicine system Discovery NM630 (K111445) and the- Hawkeye 4 Option for Dual-Head Variable Angle Gamma Camera (K052434). The NM subsystem of Optima NM/CT 640 is a virtually identical NM
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system to its predicate device Discovery NM630, except for the patient table, which is the same table as used on the Discovery NM/CT 670 (093514).
The Optima NM/CT 640 includes an integrated CT subsystem, which is intended specifically for attenuation correction and anatomical localization purposes only. This CT includes a previously certified tube and generator that is software limited to low mA (and hence low dose). The tube itself is the same as used on other GE CT systems such as CT/e. CT/e Dual (K993645. K021491) and Brivo CT 315/325. The CT gantry is capable of much faster rotation speeds than its Hawkeye 4 predicate and includes a new 4 row, optimized for low signal, Data Acquisition System (DAS) and detector. The CT gantry is independent of the NM gantry (however it has integrated covers). The NM- and CTsubsystems share a common patient table.
Determination of Substantial Equivalence:
The Optima NM/CT 640 and its applications are designed and independently tested to comply with recognized voluntary standards and will be certified to 21CFR performance standards as detailed in Section 9, 11 and 17 of this premarket submission. The system was design in accordance with the design controls of GE's quality system. The following quality assurance measures were applied to the development of the system:
- Risk Analysis
Requirements Reviews Design Reviews Module Testing on unit level System Integration testing Performance testing Safety testing
The Optima NM/CT 640 does not require clinical studies to support substantial equivalence.
#### Conclusion: GE Healthcare considers the Optima NM/CT 640 to be as safe, as effective, and with performance substantially equivalent to the predicate device(s).
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Image /page/3/Picture/0 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo features the department's name in a circular arrangement around a stylized emblem. The emblem consists of three abstract shapes resembling human figures or birds in flight. The overall design is simple and conveys a sense of unity and progress.
## 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
GE Medical System, Israel, Functional Imaging % Mr. Ned Devine Senior Staff Engineer Underwriters Laboratories Inc. 333 Pfingsten Road NORTBROOK IL 60062
APR 1 9 2012
Re: K121019
Trade/Device Name: Optima NM/CT 640 Regulation Number: 21 CFR 892.1200 Regulation Name: Emission computed tomography system Regulatory Class: II Product Code: KPS and JAK Dated: April 2, 2012 Received: April 4, 2012
#### Dear Mr. Devine:
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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INDICATIONS FOR USE FORM
510(k) Number (if known):
Device Name:
# Optima NM/CT 640
## Indications for Use:
The GE Optima NM/CT 640 system is a medical tool intended for use by appropriately trained healthcare professionals to aid in detecting, localizing, diagnosing of diseases and in assessment of organ function for the evaluation of diseases, trauma, abnormalities, and disorders such as, but not limited to, cardiovascular disease, neurological disorders and cancer. The system output can also be used by the physician for staging and restaging of turnors, planning, guiding, and monitoring therapy.
4121019
The GE Optima NM/CT 640 system is a Nuclear Medicine (NM) system, which is intended to yield General Nuclear Medicine imaging procedures for detection of radioisotope tracer uptake in the patient body, using a variety of scanning modes supported by various acquisition types and imaging features designed to enhance image quality. The scanning modes include planar mode (Static, Multi-gated, Dynamic and Whole body scanning) and tomographic mode (SPECT, Gated SPECT, Whole body SPECT). The acquisition types include single and multi-isotope/multi peak frame/list mode single-photon imaging-enhancement features include an assortment of collimators, gating by physiological signals, and real-time automatic body contouring.
The GE Optima NM/CT 640 system includes an integrated CT, which is intended specifically for attenuation correction and anatomical localization purposes only, a processing and review. workstation, and may include signal analysis and display equipment, patient and equipment supports, components and accessories. The system may be used for patients of all ages.
Utilizing the associated CT portion and post processing, the device can produce attenuation corrected SPECT images using CT-based attenuation maps, as well as functional and anatomical mapping images registered with the SPECT images for purposes of localization and fusion.
The device does not support stand-alone CT operation.
Prescription Use X (Part 21 CFR 801 Subpart D) AND/OR
Over-The-Counter Use (Part 21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence/of CDRH, Office of In Vitro Diagnostic Devices (OIVD)
Division Sign Off
Division Sign-Off Office of In Vitro Diagnostic Device Evaluation and Safety
page 1 of 1
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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.