MAGNETIC RESONANCE IMAGING APPARATUS AND NAVIGATOR DATA ANALYZING METHOD
First Claim
1. A magnetic resonance imaging apparatus configured to generate an image of an image area by executing a first scan using a navigator sequence to acquire navigator data based on a magnetic resonance signal from a navigator area containing tissues body-moved in a subject and by executing a second scan using an imaging sequence for acquiring a magnetic resonance signal from the imaging area as imaging data at the subject said magnetic resonance imaging apparatus comprising:
- a phase profile generating part configured to generate a phase profile that shows a relationship between a phase of the navigator data and a position of the navigator area;
a phase correcting part configured to correct folding back of the phase profile; and
a position detecting part configured to detect a position of a tissue body-moved in the navigator area based on the phase profile.
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Accused Products
Abstract
A magnetic resonance imaging apparatus executes scans for executing a navigator sequence for acquiring as navigator data a magnetic resonance signal from a navigator area containing tissues body-moved in a subject and executing an imaging sequence for acquiring a magnetic resonance signal from an imaging area as imaging data at the subject, thereby to generate an image with respect to the imaging area. The magnetic resonance imaging apparatus includes, a phase profile generating part which generates a phase profile so as to show a relationship between a phase of the navigator data and a position of the navigator area, a phase correcting part which corrects folding back of the phase profile generated by the phase profile generating part, and a position detecting part which detects a position of a tissue body-moved in the navigator area, based on the phase profile corrected by the phase correcting part.
26 Citations
20 Claims
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1. A magnetic resonance imaging apparatus configured to generate an image of an image area by executing a first scan using a navigator sequence to acquire navigator data based on a magnetic resonance signal from a navigator area containing tissues body-moved in a subject and by executing a second scan using an imaging sequence for acquiring a magnetic resonance signal from the imaging area as imaging data at the subject said magnetic resonance imaging apparatus comprising:
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a phase profile generating part configured to generate a phase profile that shows a relationship between a phase of the navigator data and a position of the navigator area; a phase correcting part configured to correct folding back of the phase profile; and a position detecting part configured to detect a position of a tissue body-moved in the navigator area based on the phase profile. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A navigator data analyzing method comprising:
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executing a first scan and a second scan in which RF pulses are transmit to a subject within a static magnetic field space and magnetic resonance signals are acquired from the subject in order to acquire imaging data; generating a slice image of the subject and navigator data for detecting a position of each tissue in the subject; generating a phase profile in order to show a relationship between a phase of the navigator data and a position of a navigator area; correcting folding back of the phase profile; and detecting a position of a tissue body-moved in the navigator area based on the corrected phase profile. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification