X-ray computed tomography apparatus and photon counting ct apparatus
AssigneesKabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
InventorsEmi TAMURA, Yasuo SAITO, Takuzo TAKAYAMA, Hiroaki MIYAZAKI, Hiroaki NAKAI
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Abstract
A gantry includes two X-ray source rings and a detector ring. Each X-ray source ring includes a plurality of X-ray sources arrayed circumferentially. The detector ring is provided next to the X-ray source ring and includes a plurality of X-ray detectors arrayed circumferentially. Each of the plurality of X-ray detectors detects X-rays from the X-ray source ring. A data collection circuit collects raw data corresponding to the intensity of the detected X-rays. A reconstruction unit reconstructs the collected raw data into a CT image based on digital data.
Claims22
An X-ray computed tomography apparatus comprising:
- two X-ray source rings arrayed along a central axis, each of the two X-ray source rings including a plurality of X-ray sources arrayed on a circumference;
- a single detector ring provided between the two X-ray source rings and including a plurality of X-ray detectors arrayed on a circumference, each of the plurality of X-ray detectors detecting X-rays from the two X-ray source rings;
- a data collection unit configured to collect digital data corresponding to an intensity of the detected X-rays;
- and
- a reconstruction unit configured to reconstruct a CT image based on the digital data.
A photon counting CT apparatus comprising:
- two X-ray source rings arrayed along a central axis, each of the two X-ray source rings including a plurality of X-ray sources arrayed on a circumference;
- a single detector ring provided between the two X-ray source rings and including a plurality of X-ray detectors arrayed on a circumference, each of the plurality of X-ray detectors detecting X-rays from the two X-ray source rings;
- a counting unit configured to count the detected X-ray photons;
- and
- a reconstruction unit configured to reconstruct a photon counting CT image based on the counts of X-ray photons.
Dependencies are inferred from the claim text.