RADIATION CALCULATED TOMOGRAPHY AND TOMOGRAM DATA GENERATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a radiation calculated tomography and a tomogram data generation method effectively correcting an effect of scattered radiation and reducing artifact of the tomogram. SOLUTION: An X-ray CT 10 is provided with a plurality of X-ray detecting channels (ch) disposed two-dimensionally and detecting the X-ray passing through a subject 1; and an arithmetic control device 23 calculating and reconstructing tomogram data of the tomogram of the subject 1 based on projection data of the subject 1 for every X-ray detection channel (ch) which are obtained from the detection values of the plurality of X-ray detection channels (ch). The arithmetic control device 23 corrects the projection data using a correction value having a correlation with a route length of the X-ray in the subject 1 obtained from the projection data for every detection channel (ch) and generates the tomogram data based on the corrected projection data. COPYRIGHT: (C)2005,JPO&NCIPI