K103330 · Ge Hangwei Medical Systems Co., Ltd. · LNH · Feb 11, 2011 · Radiology
Device Facts
Record ID
K103330
Device Name
BRIVO MR355, OPTIMA MR360
Applicant
Ge Hangwei Medical Systems Co., Ltd.
Product Code
LNH · Radiology
Decision Date
Feb 11, 2011
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 892.1000
Device Class
Class 2
Indications for Use
The Brivo MR355/ Optima MR360 is a whole body magnetic resonance scanner designed to support high resolution, high signal-to-noise ratio, and short scan times. It is indicated for use as a diagnostic imaging device to produce axial, sagittal, coronal, and oblique images, spectroscopic images, parametric maps, and/or spectra, dynamic images of the structures and/or functions of the entire body, including, but not limited to, head, neck, TMJ, spine, breast, heart, abdomen, pelvis, joints, prostate, blood vessels, and musculoskeletal regions of the body. Depending on the region of interest being imaged, contrast agents may be used. The images produced by the Brivo MR355/ Optima MR360 reflect the spatial distribution or molecular environment of nuclej exhibiting magnetic resonance. These images and/or spectra when interpreted by a trained physician yield information that may assist in diagnosis
Device Story
Whole-body 1.5T superconducting MR scanner; acquires data via gradients and RF coils; produces axial, sagittal, coronal, oblique images, spectra, and parametric maps. Operated by clinicians in clinical settings. Features 'Simple UI' for inexperienced users; includes 'AutoTR' for scan time optimization and 'Favorite Protocols' for workflow efficiency. Express Coil suite (neurovascular, CTL/spine, body arrays) minimizes patient repositioning. Output interpreted by physicians to assist in diagnosis; benefits include high resolution, high SNR, and reduced scan times.
Clinical Evidence
Bench testing only. Performance metrics (SNR, geometric distortion, image uniformity, slice thickness, spatial resolution) and safety parameters (static field, acoustic noise, gradient output, RF SAR, biocompatibility) verified against NEMA/IEC/ISO standards. Clinical images collected from volunteers to demonstrate system functionality.
Technological Characteristics
1.5T superconducting magnet; 8-channel receive system; gradient and RF transmission for spatial encoding. Express Coil suite (neurovascular, CTL/spine, body arrays). DICOM compliant. Software includes simplified UI with AutoTR and protocol shortcuts. Complies with IEC standards for MR safety.
Indications for Use
Indicated for whole-body diagnostic MR imaging (head, neck, TMJ, spine, breast, heart, abdomen, pelvis, joints, prostate, blood vessels, musculoskeletal) to produce axial, sagittal, coronal, oblique images, spectroscopic images, parametric maps, and dynamic images. For use by trained physicians. Contrast agents may be used.
Regulatory Classification
Identification
A magnetic resonance diagnostic device is intended for general diagnostic use to present images which reflect the spatial distribution and/or magnetic resonance spectra which reflect frequency and distribution of nuclei exhibiting nuclear magnetic resonance. Other physical parameters derived from the images and/or spectra may also be produced. The device includes hydrogen-1 (proton) imaging, sodium-23 imaging, hydrogen-1 spectroscopy, phosphorus-31 spectroscopy, and chemical shift imaging (preserving simultaneous frequency and spatial information).
Special Controls
*Classification.* Class II (special controls). A magnetic resonance imaging disposable kit intended for use with a magnetic resonance diagnostic device only is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 892.9.
Predicate Devices
GE 1.5T Signa® HDe Magnetic Resonance System (K052978)
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# 1033330
P/4
GE Healthcare
GE Brivo MR355/Optima MR360 510(k) Premarket Notification
FEB 1 1 2011
# Section 5 - 510(k) Summary
This 510(k) summary of safety and effectiveness information is submitted in accordance with the requirements of 21 CFR Part 807.92(c).
| Submitter: | GE Hangwei Medical Systems |
|-----------------|-----------------------------|
| | Co.,Ltd. |
| | No.2 Yong Chang North Road, |
| | Beijing Economic & Tech |
| | Development Area |
| | Beijing, 100176, P.R.China |
| Contact Person: | Ruoqian Liu |
| | Regulatory Affairs Leader |
| Telephone: | 86-10-58068943 |
| Fax: | 86-10-67803278 |
| Email: | ruoqian.liu@ge.com |
| Date Prepared: | November 03, 2010 |
#### Device Name:
Brivo MR355/Optima MR360 Proprietary Name: Classification Name: Magnetic Resonance Diagnostic System, 21 CFR 892.1000, 90-LNH
#### Predicate Devices:
GE 1.5T Signa® HDe Magnetic Resonance System (K052978) GE Discovery® MR450 System (K083147)
### Device Description:
The Brivo MR355 / Optima MR360 is a new MR system that is similar in design to previous GE Healthcare 1.5T MR systems. All utilize superconducting magnets, gradients, and radio frequency coils and electronics to acquire data in single voxel, two dimensional, or three dimensional datasets.
The 1.5T Brivo MR355 / Optima MR360 features a superconducting magnet operating at 1.5 Tesla. The data acquisition system accommodates up to 8 independent receive channels in various increments, and multiple independent coil elements per channel during a single acquisition series. The system uses a combination of time-varying magnetic fields (gradients) and RF transmissions to obtain information regarding the density and position of elements exhibiting magnetic resonance. The system can image in the sagittal, coronal, axial, oblique and double oblique planes, using various pulse sequences and reconstruction algorithms. The 1.5T Brivo MR355 / Optima MR360 is designed to conform to NEMA DICOM standards (Digital Imaging and Communications in Medicine).
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# GE Healthcare
GE Brivo MR355/Optima MR360 510(k) Premarket Notification
### Indications for Use:
The Brivo MR355/ Optima MR360 is a whole body magnetic resonance scanner designed to support high resolution, high signal-to-noise ratio, and short scan times. It is indicated for use as a diagnostic imaging device to produce axial, sagittal, coronal, and oblique images, spectroscopic images, parametric maps, and/or spectra, dynamic images of the structures and/or functions of the entire body, including, but not limited to, head, neck, TMJ, spine, breast, heart, abdomen, pelvis, joints, prostate, blood vessels, and musculoskeletal regions of the body. Depending on the region of interest being imaged, contrast agents may be used. The images produced by the Brivo MR355/ Optima MR360 reflect the spatial distribution or molecular environment of nuclej exhibiting magnetic resonance. These images and/or spectra when interpreted by a trained physician yield information that may assist in diagnosis
# Comparison with Predicate Devices:
The indications for use for the Brivo MR355/Optima MR360 are similar to those for the GE Signa® HDe Magnetic Resonance System and the GE Discovery® MR450.
# Comparison statement between BrivoMR355/Optima MR360 and 1.5T Signa® HDe system :
The GE Brivo355/Optima 360 is a new device design that is similar to the previously cleared 1.5T HDe MR system (K052978). The magnet, gradient coil, RF transmit coil and RF amplifier are common with Signa® HDe. The main differences are an increase in the amplitude and slew rate of the gradient output, a fixed pation, and a multi-anatomy receiving coil. Both a detachable table and a new fixed patient table are offered with the system in order to meet emerging market customer expectations. A new multi-anatomy receiving coil is included with the GE Brivo MR355/Optima MR360 to provide customers with more coil selections, and to minimize the need to reposition patients during scanning. Changes to the system software include a modified user interface and differences in the software applications offered.
The new multi-anatomy receiving coil is called Express Coil suite, which includes the neurovascular array coil, CTL/spine array coil and body array coil. The system operates on the same principles with workflow improvement by reducing the need to change coils. The coils can be used individually or combined to provide the anatomical coverage desired. These individual coils of the Express coil suite are equivalent to the neurovascular array coil, CTL/spine array coil and body array coil from the predicate device - Signa HDe:K052978
### Comparison statement between BrivoMR355/Optima MR360 and GE Discovery® MR450:
The GE Brivo MR355/Optima MR360 is also similar to the previously cleared Discovery® MR450 1.5T system (K083147). The software and RF receive chain are common with the Discovery® MR450. There are some changes to the user interface to simplify customer operation, but the operation of the system is significantly equivalent to that of the Discovery ® MR450.
The GE Brivo MR355/Optima MR360 system's Simple user interface (Hide Scan Parameters) is
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# GE Healthcare
GE Brivo MR355/Optima MR360 510(k) Premarket Notification
designed for inexperienced customers or others who may have difficulty using the more complex user interface of many MR systems. With fewer parameter selections in theSimple UI, it is easier to understand and learn, less error prone, and less intimidating for inexperienced users. Features of the Simple UI include robost site protocols for routine scans, AutoTR, and slider bar functionality.
With the Favorite Protocol feature, users can easily select their favorite protocols graphically instead of opening the protocol selector window. There are two kinds of favorite protocols:
Ready Favorite Protocols, also called Ready Shortcuts
Custom Favorite Protocols, also called Custom Shortcuts
Ready Favorite Protocols are predefined and cannot be changed by users. Users can designate any of the scan protocols on the system as Custom Favorite Protocols. These protocols may be their mostly used protocols.
AutoTR aims to automatically adjust repetition time (TR) to optimize scan time when prescribing slicesor changing other parametersand at the same time keeping the image contrast with a TR range provided.
The Slider Bar is used to quickly and easily select different scan parameters.
#### Summary of Studies:
As stated in the FDA document "Guidance for the Submission of Premarket Notifications for Magnetic Resonance Diagnostic Devices" the following parameters have been measured and documented through testing to NEMA, IEC or ISO standards (as referenced throughout this submission and listed in Section 9):
#### Performance:
Signal-to-noise ratio (SNR) Geometric distortion Image uniformity Slice thickness Spatial resolution
#### Safety
Static field strength Acoustic noise Gradient output (dB/dt) RF output (SAR) Biocompatibility
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# GE Healthcare
GE Brivo MR355/Optima MR360 510(k) Premarket Notification
KID3330
04/4
# Clinical
- Clinical images collected by volunteer scanning · All images show that the system meets the indications for use.
The 1.5T Brivo MR355/Optima MR360 has been designed to comply with applicable IEC standards. All testing has been executed and passed by a Nationally Recognized Testing Laboratory.
### Conclusion:
It is the opinion of GE that the GE Brivo MR355/Optima MR360 is substantially equivalent to the 1.5T Signa® HDe MR System and GE Discovery® MR450.
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Image /page/4/Picture/0 description: The image shows the seal for the Department of Health & Human Services USA. The seal is circular and contains the words "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" around the perimeter. Inside the circle is an abstract image of an eagle.
# 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
Mr. Ruogian Liu Regulatory Affairs Leader GE Hangwei Medical Systems Co., Ltd No 2, Yong Chang North Road, Beijing Economy & Technology Development Zone Beijing 100176 CHINA
Re: K103330
Trade/Device Name: Brivo MR355/Optima MR 360 Regulation Number: 21 CFR 892.1000 Regulation Name: Magnetic resonance diagnostic device Regulatory Class: II Product Code: LNH and LNI Dated: January 20, 2011 Received: January 20, 2011
FEB 1 1 201
### Dear Mr. Liu:
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. Iisting 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.
Mary S Postel
Mary Pastel, ScD. 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
510(k) Number (if known):
K103330
Device Name: Brivo MR355/Optima MR360
#### Indications for Use:
The Brivo MR355/ Optima MR360 is a whole body magnetic resonance scanner designed to support high resolution, high signal-to-noise ratio, and short scan times. It is indicated for use as a diagnostic imaging device to produce axial, sagittal, coronal, and oblique images, spectroscopic images, parametric maps, and/or spectra, dynamic images of the structures and/or functions of the entire body, including, but not limited to, head, neck, TMJ, spine, breast, heart, abdomen, pelvis, joints, prostate, blood vessels, and musculoskeletal regions of the body. Depending on the region of interest being imaged, contrast agents may be used. The images produced by the Brivo MR355/ Optima MR360 reflect the spatial distribution or molecular environment of nuclei exhibiting magnetic resonance. These images and/or spectra when interpreted by a trained physician yield information that may assist in diagnosis.
Prescription Use X (21 CFR 801 Subpart D) 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 (
AND/OR
Mary Scott
---
Division Sign Off
Division of Radiological
510K K163330
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.