MAGNETIC RESONANCE DIAGNOSTIC SYSTEM
Device Facts
| Record ID | K962061 |
|---|---|
| Device Name | MAGNETIC RESONANCE DIAGNOSTIC SYSTEM |
| Applicant | GE Medical Systems |
| Product Code | LNH · Radiology |
| Decision Date | Nov 27, 1996 |
| Decision | SESE |
| Submission Type | Traditional |
| Regulation | 21 CFR 892.1000 |
| Device Class | Class 2 |
Intended Use
The Signa Horizon Cx System is indicated for use as a diagnostic imaging device to produce transverse, sagittal, coronal and oblique images of the internal structures of the head or body. The images produced by the Signa Horizon Cx System reflect the spatial distribution of protons (hydrogen nuclei) exhibiting magnetic resonance. The NMR properties that determine the image appearance are proton density, spin-lattice relaxation time (T1), spin-spin relaxation time (T2) and flow. When interpreted by a trained physician, these images provide information that can be useful in determining a diagnosis.
Device Story
Signa Horizon Cx Magnetic Resonance System; utilizes superconducting magnet to acquire 2D single-slice, multi-slice, and 3D volume images. Pulse sequences include inversion recovery, spin echo, gradient echo, gradient recalled, and steady state free precession. Imaging options include cardiac/peripheral gating, flow compensation, and fat/water suppression to reduce motion artifacts. Stationary or mobile configuration. Operated by trained professionals in clinical settings. Output: MR images representing proton density, T1, T2, and flow. Physician interprets images to assist in clinical diagnosis.
Clinical Evidence
Bench testing only. System evaluated against NEMA performance standards and IEC 601-1 international medical equipment safety standard. No clinical data presented.
Technological Characteristics
Superconducting magnet system (1.5T and 1.0T). Pulse sequences: inversion recovery, spin echo, gradient echo, gradient recalled, steady state free precession. Imaging features: cardiac/peripheral gating, flow compensation, fat/water suppression. Stationary or mobile form factor. Compliant with NEMA standards and IEC 601-1.
Indications for Use
Indicated for diagnostic imaging of head or body internal structures in patients requiring transverse, sagittal, coronal, or oblique MR imaging to visualize proton density, T1, T2, and flow properties.
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
- Signa Horizon System
Related Devices
- K964370 — MAGNETIC RESONANCE DIAGNOSTIC SYSTEM · GE Medical Systems · Jan 10, 1997
- K992135 — SIGNA PROFILE/I MAGNETIC RESONANCE SYSTEM · Ge Medical Systems, Inc. · Sep 8, 1999
- K103238 — 1.5T OPTIMA MR430S · Ge Medical Systems, LLC · Feb 11, 2011
- K161567 — SIGNA Voyager · GE Healthcare · Sep 1, 2016
- K972826 — ESTEEM 1.5T MRI SYSTEM · Elscint Mr, Inc. · Oct 15, 1997