Magnetic resonance scanner with wireless transmission of upconverted signals and received sidebands occurring outside of the industrial, scientific, and medical (ISM) band
First Claim
1. A wireless magnetic resonance imaging data acquisition device, comprising:
- Radio Frequency (RF) local coils and gradient coils operable to obtain magnetic resonance data from a subject, a microwave antenna array, a local oscillator, and an upconverter;
said local oscillator supplying a local oscillator signal from the microwave antenna array in order to operate the local coils;
said local coils generating said magnetic resonance signals at a first frequency, and said upconverter upconverting said magnetic resonance signals at said first frequency into microwave frequencies; and
said local oscillator emitting a local oscillator frequency in the 2.4 GHz Industrial, Scientific, and Medical (ISM) band in order to cause desired sidebands for reception of the upconverted local coil magnetic resonance signals to be located outside of said ISM band.
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Accused Products
Abstract
A wireless magnetic resonance imaging scanner has one or more local coils, a microwave antenna array, and a local oscillator, and an upconverter. The local oscillator signal from the local oscillator is transmitted from the microwave antenna array to illuminate the local coils. The local coils generate magnetic resonance signals at a first frequency and the magnetic resonance signals at the first frequency are upconverted in the upconverter to microwave frequencies. The local oscillator operates at a frequency within an unlicensed band, chosen such that desired sidebands for reception of the upconverted local coil magnetic resonance signals fall outside the unlicensed band.
30 Citations
9 Claims
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1. A wireless magnetic resonance imaging data acquisition device, comprising:
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Radio Frequency (RF) local coils and gradient coils operable to obtain magnetic resonance data from a subject, a microwave antenna array, a local oscillator, and an upconverter; said local oscillator supplying a local oscillator signal from the microwave antenna array in order to operate the local coils; said local coils generating said magnetic resonance signals at a first frequency, and said upconverter upconverting said magnetic resonance signals at said first frequency into microwave frequencies; and said local oscillator emitting a local oscillator frequency in the 2.4 GHz Industrial, Scientific, and Medical (ISM) band in order to cause desired sidebands for reception of the upconverted local coil magnetic resonance signals to be located outside of said ISM band. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wireless magnetic resonance imaging data acquisition device, comprising:
A magnetic resonance data acquisition unit comprising Radio Frequency (RF) local coils and gradient coils operable to obtain magnetic resonance data from a subject, a microwave antenna array, a local oscillator, and an upconverter; said local oscillator supplying a local oscillator signal from the microwave antenna array in order to operate the local coils; said local coils generating said magnetic resonance signals at a first frequency, and said upconverter upconverting said magnetic resonance signals at said first frequency into microwave frequencies; and said local oscillator emitting at a local oscillator frequency in the 2.4 GHz Industrial, Scientific, and Medical (ISM) band in order to cause desired sidebands for reception of the upconverted local coil magnetic resonance signals to be located outside of said ISM band.
Specification