Accelerated magnetic resonance thermometry
First Claim
1. An apparatus comprising:
- a magnetic resonance imaging system, the magnetic imaging system comprising;
a magnet,magnetic gradient field coils, anda radio frequency coil;
a processor for controlling the apparatus; and
a memory storing machine readable instructions for execution by the processor, wherein execution of the instructions causes the processor;
to control the magnetic resonance imaging system to generate a spectroscopic pulse sequence and in response thereto to acquire spectroscopic magnetic resonance data for an imaging zone,to produce a calibration thermal map of the imaging zone from the acquired spectroscopic magnetic resonance data,to control the magnetic resonance imaging system to generate a magnetic resonance thermometry pulse sequence and in response thereto to acquire baseline magnetic resonance thermometry data for the imaging zone, andto repeatedly;
control the magnetic resonance imaging system to generate the magnetic resonance thermometry pulse sequence and in response thereto to acquire additional magnetic resonance thermometry data for the imaging zone, and produce a temperature map of the imaging zone from the calibration thermal map, the baseline magnetic resonance thermometry data, and the additional magnetic resonance thermometry data.
1 Assignment
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Accused Products
Abstract
A medical apparatus (300, 400, 500, 600) comprising a magnetic resonance imaging system (302). The medical apparatus further comprises a memory (332) storing machine readable instructions (352, 354, 356, 358, 470, 472, 474) for execution by a processor (326). Execution of the instructions causes the processor to acquire (100, 202) spectroscopic magnetic resonance data (334). Execution of the instructions further cause the processor to calculate (102, 204) a calibration thermal map (336) using the spectroscopic magnetic resonance data. Execution of the instructions further causes the processor to acquire (104, 206) baseline magnetic resonance thermometry data (338). Execution of the instructions further causes the processor to repeatedly acquire (106, 212) magnetic resonance thermometry data (340). Execution of the instructions further cause the processor to calculate (108, 214) a temperature map (351) using the magnetic resonance thermometry data, the calibration thermal map, and the baseline magnetic resonance thermometry data.
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Citations
20 Claims
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1. An apparatus comprising:
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a magnetic resonance imaging system, the magnetic imaging system comprising; a magnet, magnetic gradient field coils, and a radio frequency coil; a processor for controlling the apparatus; and a memory storing machine readable instructions for execution by the processor, wherein execution of the instructions causes the processor; to control the magnetic resonance imaging system to generate a spectroscopic pulse sequence and in response thereto to acquire spectroscopic magnetic resonance data for an imaging zone, to produce a calibration thermal map of the imaging zone from the acquired spectroscopic magnetic resonance data, to control the magnetic resonance imaging system to generate a magnetic resonance thermometry pulse sequence and in response thereto to acquire baseline magnetic resonance thermometry data for the imaging zone, and to repeatedly;
control the magnetic resonance imaging system to generate the magnetic resonance thermometry pulse sequence and in response thereto to acquire additional magnetic resonance thermometry data for the imaging zone, and produce a temperature map of the imaging zone from the calibration thermal map, the baseline magnetic resonance thermometry data, and the additional magnetic resonance thermometry data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of operating an apparatus including a magnetic resonance imaging system, the method comprising:
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employing the magnetic resonance imaging system to generate a spectroscopic pulse sequence and in response thereto acquiring spectroscopic magnetic resonance data for an imaging zone; producing a calibration thermal map of the imaging zone from the acquired spectroscopic magnetic resonance data; employing the magnetic resonance imaging system to generate a magnetic resonance thermometry pulse sequence and in response thereto acquiring baseline magnetic resonance thermometry data for the imaging zone; employing the magnetic resonance imaging system to repeatedly generate the magnetic resonance thermometry pulse sequence and in response thereto acquiring additional magnetic resonance thermometry data for the imaging zone; and repeatedly producing a temperature map of the imaging zone from the calibration thermal map, the baseline magnetic resonance thermometry data, and the additional magnetic resonance thermometry data. - View Dependent Claims (16, 17, 18)
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19. An apparatus, comprising:
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a magnetic resonance imaging system; a processor for controlling the apparatus; and a memory storing machine readable instructions for execution by the processor, wherein execution of the instructions causes the processor to control the apparatus; to perform a proton spectroscopic temperature imaging mapping of the imaging zone to obtain an absolute temperature map of the imaging zone; subsequently to perform a series of proton resonance frequency temperature imaging mappings of the imaging zone; and to produce a series of temperature maps of the imaging zone from the absolute temperature map of the imaging zone and the proton resonance frequency temperature imaging mappings of the imaging zone. - View Dependent Claims (20)
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Specification