OPERATING METHOD OF THREE-DIMENSIONAL CT IMAGING DEVICE, AND SCANNING AND DATA COLLECTING DEVICE

摘要

PROBLEM TO BE SOLVED: To improve the speed and efficiency of measured data processing, by preliminarily calculating image reconstruction processing information for processing collected measured data necessary for developing the final image reconstruction before collecting measured data during imaging operation by an imaging device. SOLUTION: Scanning of a subject is carried out in a cone beam three- dimensional CT imaging device in cooperation with a manipulator 6, a computer 8, a source 10, and a detector 12. Measured signals when X-ray energy comes into the detector 12 after passing through the field of view of the imaging device are transmitted to a processor 18 via a data collecting system 17 where the image is reconstructed. Before collection of measured data, image reconstruction processing information for processing collected measured data necessary for developing contribution to final image reconstruction is preliminarily calculated. The source 10 and the detector 12 are operated at plural positions to collect plural sets to which measured data correspond.