(27 days)
The Hitachi Echelon MR Spectroscopy Package is intended for use as a non-invasive diagnostic device that provides information based on relative concentrations of metabolites in body tissues. This NMR data in the form of spectra or spectral images reflect the NMR properties of proton density, spin-lattice relaxation time (T1), spin-spin relaxation time (T2), and chemical shift. When interpreted by a trained medical practitioner, these spectral data provide information that can be useful in making a diagnosis.
This package is indicated for use as follows:
Anatomical Region: Head, whole body 1H Nuclei Excited:
MR Spectroscopy is an imaging and analysis feature that can provide unique information about tissue within a human body. Spectroscopy can be used to complement or augment information and images obtained through other MR imaging and analysis techniques.
The acquisition of spectroscopic information is fundamentally the same as for other MR imaging techniques. For example, a modified spin echo sequence is used to collect data for one or more voxels of tissue. This data collection utilizes existing MR hardware and software, for example, the main magnetic field, gradient coils, RF transmitter, RF receiver coils, and memory or "K-Space".
The analysis of the collected data is what differentiates MR Spectroscopy from other more conventional MR imaging and analysis techniques. The data that is collected from the MR pulse sequence as described above is processed through MR spectroscopy algorithms. After computation and analysis on this data, information is displayed for the operator/reviewer. Spectroscopy data may be displayed in multiple ways, for example as data, graphs or images.
The provided 510(k) summary (K071506) for the Hitachi Echelon MR Spectroscopy Package does not contain information about acceptance criteria or a study that proves the device meets specific performance acceptance criteria.
The submission focuses on establishing substantial equivalence to a predicate device (Picker MR Spectroscopy Package K991568) based on intended use and similar technology, rather than presenting a performance study with defined acceptance criteria.
Therefore, I cannot extract the requested information from the provided text.
§ 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.