(14 days)
The GE Signa® Excite MR system is a whole body magnetic resonance scanner designed to support high resolution, high signal-to-noise ratio, and short scan times. The Signa® Excite MR system is indicated for use as a diagnostic imaging device to produce axial sagittal, coronal and oblique images, spectroscopic images, and/or spectra, dynamic images of the internal structures and organs of the entire body, including, but not limited to, head, neck, TMJ, spine, breast, heart, abdomen, pelvis, prostate, blood vessels, and musculoskeletal regions of the body. The images produced by the Signa® Excite system reflect the spatial distribution of protons (hydrogen nuclei) exhibiting magnetic resonance. These images and/or spectra when interpreted by a trained physician yield information that may assist in diagnosis.
The Signa® Excite 1.5T and 3.0T Magnetic Resonance Systems are a modification to the previously cleared Mr Systems K015000, and K030874 which utilizes a superconducting magnet to acquire 2D Single and make images. The Signa® Excite make a superconducting magnet operating at 1.51 and 0.0 r Magnolis (1600)and institution system supports 1, 4, 8, 16 independent receive channels and multiple independent coil elements per channel during a single acquisition channolo and manification is designed for expansion in 16 channel Sencs. The system can image in the sagittal, coronal, axial, oblique and double oblique increments. The system our mage in the sage are acquired and reconstructed using 2D and planes, asing ranous palos objaction. The system is intended for high-resolution anatomical applications, short scan times, and multinuclear spectroscopy.
Here's a breakdown of the requested information based on the provided text for K041476. It's important to note that this 510(k) summary is for a Magnetic Resonance (MR) system, which typically has different performance evaluation criteria than, for instance, an AI-powered diagnostic device. The 'acceptance criteria' here refer more to meeting established performance standards for the MR system itself and demonstrating substantial equivalence to predicates, rather than specific diagnostic accuracy metrics.
1. Table of Acceptance Criteria and Reported Device Performance
For an MR system, acceptance criteria are generally related to its technical specifications, compliance with safety standards, and performance characteristics like resolution, signal-to-noise ratio (SNR), and scan times. Since this is a submission for a modification to existing MR systems, the "acceptance criteria" revolve around demonstrating that the modified devices (Signa® Excite 1.5T and 3.0T MR Systems) maintain the safety and effectiveness of the predicate devices and comply with relevant standards.
| Acceptance Criteria Category | Reported Device Performance |
|---|---|
| Substantial Equivalence (1.5T System) | The Signa® Excite 1.5T MR System is described as "substantially equivalent to the currently marketed The Signa® 1.5T Infinity MR system (K013636)." The main difference cited is a change to the receive channels (10 receive channels, allowing for future expansion in 16 channel increments). GE states its opinion that "Usage of the Signa® Excite 1.5T Magnetic Resonance System does not result in any new potential hazards." |
| Substantial Equivalence (3.0T System) | The Signa® Excite 3.0T MR System is described as "substantially equivalent to the currently marketed The Signa "Excite U.S.T. MIT System (K030874)." The main differences cited are a change to the receive channels (16 independent receive channels, allowing for future expansion in 16 channel increments). GE states its opinion that "Usage of the Signa® Excite 3.0T Magnetic Resonance System does not result in any new potential hazards." |
| Safety and Performance Standards | The systems were "evaluated to the appropriate NEWs performance standards as well as the IEC 60601-1 International Medical Equipment Safety Standard and ISO 23647 Magnetic Resonance Equipment for Medical Diagnosis." (Note: The provided text contains a typo for ISO standard, "120 0000 - 12 Signal," which should likely be corrected during review, but the intent is clear). The text explicitly states the 3.0T system is "comparable to the currently marketed Signa® 3.0T Infinity with Excite Technology Magnetic Resonance System." |
| Technical Capabilities | The device description highlights capabilities such as:Superconducting magnet operating at 1.5T and 3.0T.Supports 1, 4, 8, 16 independent receive channels and multiple independent coil elements per channel during a single acquisition (designed for expansion in 16 channel increments).Can image in sagittal, coronal, axial, oblique, and double oblique planes using various pulse sequences.Intended for high-resolution anatomical applications, short scan times, and multinuclear spectroscopy. |
2. Sample Size Used for the Test Set and Data Provenance
The provided 510(k) summary does not mention a discrete "test set" in the context of diagnostic accuracy, sample size, or data provenance (e.g., country of origin, retrospective/prospective). This is because the submission is for a general-purpose MR system, not an AI-powered diagnostic algorithm. The evaluation focuses on meeting engineering and safety standards and demonstrating equivalence to predicate devices, not on a case-based clinical performance study as one would expect for an AI algorithm.
3. Number of Experts Used to Establish Ground Truth for the Test Set and Qualifications
Not applicable. As explained above, this submission is for an MR imaging device, not an AI algorithm requiring expert-established ground truth for a diagnostic test set.
4. Adjudication Method for the Test Set
Not applicable. No test set or human adjudication process is described in this 510(k) summary for the MR device itself.
5. If a Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study Was Done, and Effect Size
No. The document does not describe any MRMC comparative effectiveness study where human readers' performance with and without AI assistance was evaluated.
6. If a Standalone (Algorithm Only Without Human-in-the-Loop Performance) Was Done
No. This is a submission for an MR imaging system hardware modification, not a standalone algorithm.
7. Type of Ground Truth Used
Not applicable in the conventional sense of a diagnostic device. For an MR system, "ground truth" relates to its ability to accurately produce images that reflect the spatial distribution of protons (as stated in the Indications for Use), its adherence to technical specifications, and compliance with performance and safety standards. This is validated through engineering tests, phantom studies, and comparison to established predicate device performance and standards, rather than pathology or outcomes data from patients used to establish "ground truth" for a diagnostic algorithm.
8. Sample Size for the Training Set
Not applicable. This is an MR system, not an AI algorithm, and therefore there is no "training set."
9. How the Ground Truth for the Training Set Was Established
Not applicable. As there is no training set for an AI algorithm described, this point is irrelevant to the provided document.
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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 shape. The letters are stylized and connected, and the entire logo is in black against a white background.
GE Healthcare Technologies
P.O. Box 414, Milwaukee, WI 53201
JUN 1 7 2004
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 Healthcare TechnologiesPO Box 414Milwaukee, WI 53201 |
|---|---|
| Contact Person: | Larry A. Kroger Ph.D.Manager, Regulatory Programs |
| Telephone: | 262- 544-3894 |
| Fax: | 262- 548-4768 |
| Date Prepared: | May 28, 2004 |
Device Name:
GE Signa® Excite 1.5T MR System, and
GE Signa® Excite 3.0T MR System GL Signa "Exons C.o. P.M. System, 21 CFR 892.1000, 90-LNH
Marketed Device:
The Signa® Excite 1.5T MR System is substantially equivalent to the currently marketed The Signa® 1.5T Infinity MR system (K013636) with the main differences being a change to the Signa - 1.51 millily Mil Dyoton (10 receive channels, and allows for future expansion in 16 channel increments.
The Signa® Excite 3.0T MR System is substantially equivalent to the currently marketed The Signa "Excite U.S.T. MIT System (K030874) with the main differences Sigra 5.01 minity with Exono Toonnelogy the Stateen independent receive channels, and allows for future expansion in 16 channel increments.
Device Description:
The Signa® Excite 1.5T and 3.0T Magnetic Resonance Systems are a modification to the The Oight - Exole 110 Pana 2007 Mass 6, and K030874 which utilizes a superconducting previously cleared Mr Systems No roooo, and Roover images. The Signa® Excite magnet to acquire 2D Single and make and make a superconducting magnet operating at 1.51 and 0.0 r Magnolis (1600)and institution system supports 1, 4, 8, 16 independent receive channels and multiple independent coil elements per channel during a single acquisition channolo and manification is designed for expansion in 16 channel Sencs. The system can image in the sagittal, coronal, axial, oblique and double oblique increments. The system our mage in the sage are acquired and reconstructed using 2D and planes, asing ranous palos objaction. The system is intended for high-resolution anatomical applications, short scan times, and multinuclear spectroscopy.
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Image /page/1/Picture/0 description: The image shows the General Electric (GE) logo. The logo consists of the letters 'GE' in a stylized font, enclosed within a circular shape. The circle has a swirling pattern around the letters, giving it a dynamic and recognizable appearance.
GE Healthcare Technologies
P.O. Box 414, Milwaukee, Wi 53201
Indications for Use:
The GE Signa® Excite MR system is a whole body magnetic resonance scanner designed to The GE Signa - Excite Mrs System is a wholo bout magnolo rean times. The Signal Excite MR
support high resolution, high signal-to-noise ratio, and short scan times. Costition system is indicated for use as a diagnostic imaging device to produce axial sagittal, coronal system is indicated for use as a diagnocto imaging spectra, dynamic images of the internal and oblique images, spectroscopic intagos, and or special, head, nead, neck, TMJ, spine, a structures and organs of the entire body, modale, blood vessels, and much as and only and breast, theat, abuonten, perio, jointo, proclare, and excite system reflect the spatial distribution of the body. The inhages produced by the elgha- Enence. These images and/or spectra when profons (rydrogon hadler) extraining may assist in diagnosis.
and the country of the work of work a work a work a want
Comparison with Predicate Device:
The Signa® Excite 1.5T and 3.0T MR Systems are a modification of the previously cleared MR The Signa Excite 1.51 and 6.61 with the main differences being the change to the receive systems K015000, and 100007 exten independent receive channels, and allows for future expansion in 16 channel increments.
Summary of Studies:
The Signa® Excite 1.5T and 3.0T Magnetic Resonance Systems were evaluated to the The Signa - Excite 1.0 Parks of Philaghts as well as the IEC 60601-1 International Medical appropriate NEWs porformance etanceres in 33 Particular Requirements for Safety of Equipment Salety Standard and 120 0000 - 12 Signal "Excite 1.5T Magnetic
Magnetic Resonance Equipment for Medical Diagnosis. The Signal "Excite 1.5T Magnetic Floonance System. The Signa® Excite 3.0T Magnetic Resonance System is comparable to the currently marketed Signa® 3.0T Infinity with Excite Technology Magnetic Resonance System.
Conclusion:
It is the opinion of GE that the Signa® Excite 1.5T Magnetic Resonance System is substantially it is the Signa® 1.5T Infinity Magnetic Resonance System. Usage of the Signa equivalorit to the organice System does not result in any new potential hazards.
It is the opinion of GE that the Signa® Excite 3.0T Magnetic Resonance System is substantially it is the Signa" 3.0T Infinity with Excite Technology Magnetic Resonance System. Usage of the Signa® Excite 3.0T Magnetic Resonance System does not result in any new potential hazards.
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Image /page/2/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 words "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" around the perimeter. Inside the circle is an abstract image of an eagle.
Food and Drug Administration 9200 Gorporate Boulevard Rockville MD 20850
JUN 1 7 2004
Larry A. Kroger, Ph.D. Senior Regulatory Programs Manager GE Healthcare Technologies P.O. Box 414 W-400 MILWAUKEE WI 53201
Re: K041476
Trade/Device Name: GE Signa® Excite 1.5T MR System, and GE Signa® Excite 3.0 MR Systen Regulation Number: 21 CFR 892.1000 Regulation Name: Magnetic resonance diagnostic device Regulatory Class: II Product Code: 90 LNH
Dated: May 28, 2004 Received: June 3, 2004
Dear Dr. Kroger:
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 for associated in 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 r ou may, there, manns 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 such additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean r that FDA has made a determination that your device complies with other requirements of the Act that I Dri has 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 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.
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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 Part 801), please contact the Office of Compliance at one of the following numbers, based on the regulation number at the top of the letter:
| 8xx. 1xxx | (301) 594-4591 |
|---|---|
| 876.2xxx, 3xxx, 4xxx, 5xxx | (301) 594-4616 |
| 884.2xxx, 3xxx, 4xxx, 5xxx, 6xxx | (301) 594-4616 |
| 892.2xxx, 3xxx, 4xxx, 5xxx | (301) 594-4654 |
| Other | (301) 594-4692 |
Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. 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 may be obtained 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/dsma/dsmamain.html.
Sincerely yours,
Nancy C. Brigdon
Nancv 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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Ko41476
GE Healthcare Technologies P.O. Box 414, Milwaukee, WI 53201
STATEMENT OF INTENDED USE
510(k) Number (if known): ____________________________________________________________________________________________________________________________________________________
GE Signa® Excite 1.5T MR System, and Device Name: GE Signa® Excite 3.0T MR System
Indications for Use
The GE Signa® Excite MR system is a whole body magnetic resonance scanner designed The GE Signa Excile Mrs System is a whole boar light scan times. The Signal
to support high resolution, high signal-to-noise ratio, and short so produce axial to support high resolution, ngil signal-lo-rane, androing device to produce axial
Excite MR system is indicated for use as a diagnostic images, and/or spectra, dynamic Excite MH System IS indicated for use as a diagnose innages, and/or spectra, dynamic
sagittal, coronal and oblique images, spectroscopic inqueling, but not limi sagittal, coronal and oblique images, spectrosophy, including, but not limited to,
images of the internal structures and organs of the inite, inited vesels, and images of the internal structures and organs of the original , prostale , head, messels, and head, neck, TMJ, spine, breast, neat, abdoment, portly, positions
musculoskeletal regions of the body. The images produced by the Signal excites system musculoskeletal regions of the body. The integoe proclass as hibiting magnetic resonance.
reflect the spatial distribution of protons (hydrogen nucled information has reflect the spatial distribution of protons (hydrogen hastory only in of the mation that
These images and/or spectra when interpreted by a trained physician yield information may assist in diagnosis.
(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_
David A. Anderson
5 . Xk) Number
E-2
§ 892.1000 Magnetic resonance diagnostic device.
(a)
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).(b)
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.