X-ray ct apparatus
AssigneesKabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
InventorsYasuo Saito, Miwa Okumura
Life of this patent
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Abstract
According to the present invention, a subject is prompted to take breaths that are different at least in depth, and the subject's motion associated with respiration is captured. A timing when the subject is scanned is controlled according to the captured motion of the subject associated with respiration. A two-dimensional detector formed like a two-dimensional plane detects an X-ray beam having passed through the subject. Data is collected from the two-dimensional detector to acquire volume data on the subject.
Claims20
X-ray CT apparatus comprising:
- an X-ray generation section irradiating a subject with a cone-beam X-ray emitted by an X-ray source;
- a two-dimensional detector formed like a two-dimensional plane to detect the X-ray beam having passed through the subject;
- a data acquisition section collecting data from the two-dimensional detector to acquire volume data on the subject;
- a respiration prompter prompting the subject to take breaths that are different at least in depth;
- a respiration monitor capturing the subject's motion associated with respiration;
- and
- a scan control section controlling timing for irradiation of the subject with the X-ray beam according to the subject's motion associated with respiration and captured by the respiration monitor.
A scan control method for an X-ray CT apparatus, the method comprising:
- allowing a respiration prompter to prompt a subject to take breaths that are different at least in depth;
- allowing a respiration monitor, when the subject is prompted by the respiration prompter to take breaths that are different at least in depth, to capture the subject's motion associated with respiration;
- allowing a scan control section to control a timing when the subject is irradiated with a cone-beam X-ray emitted by an X-ray source, according to the subject's motion associated with respiration and captured by the respiration monitor;
- allowing a two-dimensional detector formed like a two-dimensional plane to detect the X-ray beam having passed through the subject;
- and
- allowing a data acquisition section to collect data from the two-dimensional detector to acquire volume data on the subject.
Dependencies are inferred from the claim text.