HAWKEYE 4 OPTION FOR DUAL-HEAD VARIABLE ANGLE GAMMA CAMERA
K052434 · GE Medical Systems · KPS · Sep 27, 2005 · Radiology
Device Facts
Record ID
K052434
Device Name
HAWKEYE 4 OPTION FOR DUAL-HEAD VARIABLE ANGLE GAMMA CAMERA
Applicant
GE Medical Systems
Product Code
KPS · Radiology
Decision Date
Sep 27, 2005
Decision
SESE
Submission Type
Special
Regulation
21 CFR 892.1200
Device Class
Class 2
Indications for Use
The Intended use of the device is to produce attenuation- corrected NM Images. The attenuation maps are also displayed with the NM images to facilitation of the NM activity in the patient anatomy.
Device Story
Hawkeye 4 Option is a functional anatomical mapping and attenuation correction module for the GE Infinia SPECT system. It integrates an X-ray source, high-voltage power supply, collimation assembly, and a multi-slice X-ray detector (four 5mm slices, 20mm total axial coverage) into the existing gamma camera gantry. The device utilizes helical CT scanning to generate attenuation maps, which are overlaid with NM images to improve image quality, shorten acquisition time, and enhance dose efficiency. Operated by clinicians in a clinical setting, the system uses the same acquisition station and patient table as the host SPECT system. The output provides clinicians with attenuation-corrected images and anatomical maps to assist in localizing NM activity, thereby aiding diagnostic decision-making.
Clinical Evidence
Bench testing only. The device was evaluated for electrical, mechanical, and radiation safety, and conforms to applicable medical device safety and performance standards (21 CFR 1020.30, 21 CFR 1020.33). No clinical data was required for this 510(k) submission.
Technological Characteristics
Multi-slice X-ray detector (four 5mm slices, 20mm axial coverage); helical CT scanning; X-ray generator power range 350W-700W; integrated with SPECT gamma camera via slip-ring gantry; conforms to 21 CFR 1020.30/1020.33; ISO 9001 and ISO 13485 quality systems.
Indications for Use
Indicated for patients undergoing nuclear medicine (NM) imaging to produce attenuation-corrected NM images and facilitate localization of NM activity within patient anatomy.
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.
Predicate Devices
Hawkeye Option for Dual-Head Variable Angle Gamma Camera (K991841)
Reference Devices
GE Quasar Nuclear Medicine System (Infinia) (K022960)
Submission Summary (Full Text)
{0}------------------------------------------------
K052434
Image /page/0/Picture/1 description: The image shows the General Electric (GE) logo. The logo consists of the letters 'GE' intertwined within a circular border. The letters and the border are in black, set against a white background.
SEP 2 7 2005
GE Medical System, F.I. , Haifa 4, Hayozma St. P.O. Box 170 Tirat HaCarmel 30200, ISRAEL
# Attachment B:
Summary of Safety and Effectiveness
Prepared in accordance with 21 CFR Part 807.92(c).
{1}------------------------------------------------
Image /page/1/Picture/0 description: The image shows the General Electric (GE) logo. The logo consists of the letters 'GE' intertwined within a circle. There are decorative swirls or flourishes around the letters, adding a stylized touch to the design.
### GE Medical System, F.I. , Haifa 4, Hayozma St. P.O. Box 170 Tirat HaCarmel 30200, ISRAEL
This 510(k) summary of Safety and Effectiveness information is submitted in accordance with the requirements of 21 CFR 807.87(h)
| Submitter: | GE Medical Systems<br>3000 N. Grandview Blvd.<br>Waukesha, WI 53188 |
|------------------|--------------------------------------------------------------------------------------------------------------|
| Contact Person: | Laurence Bigio<br>Quality, Safety and Regulatory Manager<br>Telephone: +972-4-856-3663; Fax: +972-4-857-7664 |
| Date Prepared: | August 25, 2005 |
| Device Name: | "Hawkeye 4 Option for Dual-Head Variable Angle Gamma Camera"<br>, Radiological, 21 CFR 892.1200, 90-KPS |
| Marketed Device: | "Hawkeye Option for Dual-Head Variable Angle Gamma Camera" -K991841<br>Radiological, 21 CFR 892.1200, 90-KPS |
### Device Description:
The "Hawkeye 4 Option" is a modification of the "Hawkeye" option (K991841). "Hawkeye 4 Option" is a Functional Anatomical Mapping and Attenuation Correction option, designed to be used on SPECT system "GE Quasar Nuclear Medicine System" (K022960 trade name "Infinia"). The X-Ray system consists of an X-ray source, High voltage power supply, collimation assembly, X-ray detection unit for 4- detectors, and data collection and processing SW. The X-ray unit is completely integrated with the Infinia (K022960) gamma camera, using the same acquisition station, patient table, and slip-ring gantry. The "Hawkeye 4 Option" provides additional features to optimize radiation dose to the patient up to 700W. The "Hawkeye 4 Option" features a multi-slice X-Ray detector, with four 5mm slices and total axial coverage of 20mm. The "Hawkeye 4 Option" also utilizes helical CT scanning to further improve the image quality, shorten the acquisition time, and enhance dose efficiency. The "Hawkeye 4 Option" provides additional features to optimize radiation dose to the patient using a range of X-ray generator power from 350W to 700W. The system conforms to the USA regulation covered under
Code of Federal Regulations Title 21 Subchapter J- Radiological Health -21CFR1020.30, 21CFR 1020.33.
#### Indications for Use:
The Intended use of the device is to produce attenuation- corrected NM Images. The attenuation maps are also displayed with the NM images to facilitation of the NM activity in the patient anatomy.
### Comparison with Predicate Device:
The GE "Hawkeye 4 Option for Dual-Head Variable Angle Gamma Camera" is a modification of, and is comparable and substantially equivalent to the currently marketed "Hawkeye Option for Dual-Head Variable Angle Gamma Camera" - K991841 This system has the same Special 510(k) Premarket Notification
Hawkeye 4 Option for Dual-Head Variable Angle Gamma Camera
{2}------------------------------------------------
Image /page/2/Picture/0 description: The image shows the General Electric (GE) logo. The logo consists of the letters 'GE' intertwined and enclosed within a circle. There are decorative swirls around the letters, adding a touch of elegance to the design. The logo is black and white.
### GE Medical System, F.I. , Haifa 4, Hayozma St. P.O. Box 170 Tirat HaCarmel 30200, ISRAEL
technological characteristics, is comparable in key safety and effectiveness features, uses the same basic design, construction, and materials, and has the same intended use as the predicate device.
### Summary of Studies:
The device has been evaluated for electrical, mechanical, and radiation safety, and conforms to applicable medical device safety and performance standards.
### Conclusion:
Intended use and fundamental scientific technology are the legally marketed GE "Hawkeye" option (K991841). The design and development process of the manufacturer conforms to 21 CFR 820, and ISO 9001 and ISO 13485 quality systems. The device conforms to applicable medical device safety and performance standards. Results of the testing and standards conformance described above demonstrate, in the opinion of GE Medical Systems, that the "Hawkeve 4 Option for Dual-Head Variable Angle Gamma Camera" is substantially equivalent to the currently cleared "Hawkeye Option for Dual-Head Variable Angle Gamma Camera" - K991841.
{3}------------------------------------------------
DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/3/Picture/1 description: The image shows the logo for the Department of Health & Human Services - USA. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged around the perimeter. Inside the circle is an abstract symbol resembling an eagle or bird with three stylized wing segments.
Public Health Service
SEP 2 7 2005
11 11 11 11 11
人 - 上一
.
:
.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
Ms. E. Werner Safety and Regulatory Engineering GE Medical Systems F.J. Haifa 4 Hayozma St., P.O. Box 170 Tirat HaCarmel 30200 ISRAEL
Re: K052434
Trade/Device Name: Hawkeye 4 Option for Dual Head Variable Angle Gamma Camera Regulation Number: 21 CFR 892.1200 Regulation Name: Emission computed tomography system Regulatory Class: II Product Code: KPS Dated: August 31, 2005
Received: September 6, 2005
Dear Ms. Werner:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced in we nave leviewed your becaon 510(tr) prohestantially equivalent (for the indications for use stated in above and nave determined the all needicate devices marketed in interstate commerce prior to the encrosure) to regally maneled production of the Medical Devices that have been May 26, 1970, the clacinent date of the Federal Food, Drug, and Cosmetic Act (Act) that reclassified in accordance with the proval application (PMA). You may, therefore, market the do not require approval of a premiums approvisions of the Act. The general controls provisions of the Act device, subject to the general controls proon, 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 If your device is classilled (500 above) hitional controls. Existing major regulations affecting your Apploval), it may oc subject to aderal 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 FICASC oc advised mater 221 ৳ 135amiles with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the I caral statues and regulations and limited to registration and listing (21 CFR Part 807); labeling Act s requirements, modaling, but not as active requirements as set forth in the quality systems (QS) (21 CFR Part 801); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
{4}------------------------------------------------
This letter will allow you to begin marketing your device as described in your Section 510(k)
10 Jagar This letter will anow you to ocgin makemig your antial equivalence of your device to a legally premarket notification. The PDA midnig of Sacolantial equive and thus, permits your device to proceed to the market.
lf you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please If you desire specific advice for your device on our lasting of 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" (21 CFR Also, please note the regulation entitled, "Wisotanants of the sunder the Act from the 807.97). You may obtain other general information on 50. John March 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. Hogdon
Nancy C. Brogdon Director, Division of Reproductive, Abdominal, and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{5}------------------------------------------------
Image /page/5/Picture/0 description: The image shows the General Electric (GE) logo. The logo consists of the letters 'G' and 'E' intertwined within a circle. There are three decorative swirls around the letters, positioned at the top, bottom left, and bottom right of the circle.
GE Medical System, F.I. | Haifa dical System, F.i. P.O. Box 170 Tirat HaCarmel 30200, ISRAEL
## STATEMENT OF INTENDED USE-
510(k) Number (if known): __ K 052434
Device Name: "Hawkeye 4 Option for Dual Head Variable Angle Gamma Camera "
# Indications for Use
The Intended use of the device is to produce attenuation- corrected NM Images. The The intended use of the dovies to to proh the NM images to facilitate the localization of the NM activity in the patient anatomy.
(Please do not WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Prescription Use (Per 21 CFR 801-109)
OR
Over-The-Counter Use_
Nancy C. boydon
(Division Division of Reproductive and Rx 510k) Nu
Predicate graph will load when search results are available.
Embedding visualization will load when search results are available.
PDF viewer will load when search results are available.
Loading panels...
Select an item from Submissions
Click any panel, subpart, regulation, product code, or device to see details here.
Section Matches
Results will appear here.
Product Code Matches
Results will appear here.
Special Control Matches
Results will appear here.
Loading collections...
Loading
My Alerts
You will receive email notifications based on the filters and frequency you set for each alert.
Sort by:
Create Alert
Search Filters
Agent Token
Create a read-only bearer token for Claude, ChatGPT, or other agents that can call HTTP APIs.
Copy this now. It will not be shown again.
Connected apps
Apps you authorized through browser sign-in. Disconnecting revokes their access immediately.
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.