Magnetic resonance imaging apparatus
AssigneeToshiba Medical Systems Corporation
InventorYoshimori Kassai
Life of this patent
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Abstract
A magnetic resonance imaging apparatus performs myocardial perfusion imaging of an object. An imaging unit acquires image data by imaging a heart of the object in synchronism with a biological signal from the object. An image generating unit generates an image concerning the heart of the object based on the image data. The imaging unit applies a probe pulse for detecting body motion of the object before imaging of the heart, and applies a spatial non-selective saturation pulse before application of the probe pulse, and a local selective pulse for flipping back a flip angle of the spatial non-selective saturation pulse with regard to a region to which the probe pulse is applied.
Claims18
A magnetic resonance imaging (MRI) apparatus, comprising:
- an MRI control system, connected to control gantry components, including at least one RF transmitter, at least one RF receiver and computer control circuits configured to effect specified MRI data acquisition sequences of RF and gradient magnetic pulses which acquire, from an object located within an imaging volume, RF nuclear magnetic resonance (NMR) spin responses emanating from different spatially located volumes of MRI nuclei respectively corresponding to different positions in k-space as a function of a magnetic field experienced by the nuclei;
- said computer control circuits being configured to effect:
- acquisition of MR image data from a predetermined region of an object by using a labeling pulse to generate contrast in the image data between different tissues and an RF pulse synchronized with a biological signal of the object which periodically fluctuates;
- acquisition of a pattern of the biological signal of the object concurrent with execution of MRI data acquisition sequences;
- dynamic real time adjustment of at least one image acquisition sequence condition parameter being used in said data acquisition sequences in response to a temporal change in the pattern of the biological signal;
- and
- generation of an image of tissues in the predetermined region using the acquired image data which includes tissue contrast generated by the labeling pulse.
Dependencies are inferred from the claim text.