Multiple MR fluid flow imaging at predetermined temporal resolution within selected period of cardiac cycle determined by multiple MR imaging at different temporal resolution
First Claim
Patent Images
1. A magnetic resonance imaging apparatus comprising:
- a determining unit configured to, when a fluid traveling through a subject has been imaged for multiple times at different phases of the subject'"'"'s cardiac cycle at a first temporal resolution and the different phases cover a first period of the cardiac cycle, determine a second period of the cardiac cycle on a time axis within which further imaging of the fluid is to be performed at intervals satisfying a second temporal resolution; and
an imaging unit configured to perform imaging of the fluid for multiple times at the second temporal resolution within the second period,wherein the imaging unit performs imaging multiple times within the first period at the first temporal resolution being below the second temporal resolution and the determining unit determines, on the basis of a plurality of images collected at the first temporal resolution, the second period being included in the first period.
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Abstract
A magnetic resonance imaging apparatus according to an exemplary embodiment includes a determining unit and an imaging unit. When a fluid traveling through a subject is imaged for multiple times at different phases, the determining unit determines a period on the time axis within which imaging is performed at intervals satisfying a predetermined temporal resolution. The imaging unit performs imaging for multiple times by the temporal resolution within the period.
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Citations
10 Claims
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1. A magnetic resonance imaging apparatus comprising:
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a determining unit configured to, when a fluid traveling through a subject has been imaged for multiple times at different phases of the subject'"'"'s cardiac cycle at a first temporal resolution and the different phases cover a first period of the cardiac cycle, determine a second period of the cardiac cycle on a time axis within which further imaging of the fluid is to be performed at intervals satisfying a second temporal resolution; and an imaging unit configured to perform imaging of the fluid for multiple times at the second temporal resolution within the second period, wherein the imaging unit performs imaging multiple times within the first period at the first temporal resolution being below the second temporal resolution and the determining unit determines, on the basis of a plurality of images collected at the first temporal resolution, the second period being included in the first period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A magnetic resonance imaging apparatus comprising:
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a determining unit configured to determine, when a fluid traveling through a subject has been imaged multiple times within a first period at different phases of a subject'"'"'s cardiac cycle, a second period of the cardiac cycle on a time axis within which further imaging of the fluid is to be performed; and an imaging unit configured to perform imaging of the fluid multiple times within the determined second period, wherein; the determining unit determines the second period on the time axis within which further imaging of the fluid is to be performed, on the basis of cardiac information collected from the subject, so that the second period is included in a part of the first period in which signal values determined based upon images obtained for the different phases of the cardiac cycle within the first period rapidly change from systole to diastole.
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10. A magnetic resonance imaging method to be executed by a magnetic resonance imaging apparatus, the method comprising:
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imaging a fluid traveling through a subject for multiple times at different phases of the subject'"'"'s cardiac cycle at a first temporal resolution covering a first period of the cardiac cycle; determining, when the fluid has been imaged for multiple times at the different phases at the first temporal resolution, on the basis of a plurality of images collected at the first temporal resolution, a second period of the cardiac cycle on a time axis within which imaging is performed at an interval satisfying a second temporal resolution above the first temporal resolution, the second period being included in the first period on the time axis; and imaging the fluid for multiple times at the second temporal resolution at the second period.
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Specification