X-RAY COMPUTED TOMOGRAPHY PHOTOGRAPHING SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide an X-ray tomography photographing system for rapidly changing-over the photographing operation of a scannogram into a scanning operation. SOLUTION: This X-ray computed tomography photographing system is provided with a pedestal rotary mechanism 3 for rotating and driving an X-ray tube 72 which emits a cone beam X-ray in an opposed state to a two-dimensional array type X-ray detector 73 across a subject and a re-constituting unit 13 for inputting projection data detected by the X-ray detector 73 and re-constituting the tomographic image in a time being shorter than a time required for collecting multi-directional projection data which are necessary to re-constitute one tomographic image. The equipment is characterized by providing a display unit 14 for displaying the scannogram based on data which are detected by the X-ray detector 73 only when the X-ray tube 72 is positioned at a specified angle and also displaying the tomographic image which is re-constituted by the re-constituting unit 13.