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AssigneesKabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
InventorMasahiko Yamazaki
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An X-ray CT apparatus and image controlling method thereof that achieves a higher time resolution tomography image on a region of interest (ROI) of an object while reducing a total amount of X-ray irradiation exposure. The X-ray CT apparatus includes an X-ray source for irradiating X-rays over an object, a multi-slice detector provided facing to the X-ray source for acquiring wide range projection data by a first helical scan, a wide range projection data memory unit for storing the wide range projection data, and a narrow range projection data memory unit for storing the narrow range projection data of a designated region of interest (ROI) only. A controlling method for the X-ray CT apparatus acquires narrow range projection data by a second scan on the ROI along a slice direction and generates compounded projection data based on the narrow range projection data and the wide range projection data. The method generates images based on the compounded projection data.
An X-ray CT apparatus including an X-ray source for irradiating X-rays onto an object, a multi-slice detector for detecting the irradiated X-rays through an object, a reconstruction unit for reconstructing images based on the projection data collected through the multi-slice detector, and a display unit for displaying reconstructed projection data as a tomography image, the X-ray CT apparatus comprising:
An image controlling method for an X-ray CT apparatus including an X-ray source for irradiating X-rays onto an object, a multi-slice detector for detecting the irradiated X-rays through an object, and a reconstruction unit for reconstructing images based on the projection data collected through the multi-slice detector, the image controlling method comprising:
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