Patent ID: 7706500
Filing Date: 2010-04-27
Classification: A61B

Abstract:
1. An X-ray CT apparatus comprising: a supporter configured to support a patient, capable of moving along the body axis direction of said patient, an imaging part including an X-ray-generator configured to irradiate X-rays while rotating around said body axis and an X-ray-detector configured to detect said X-rays that have permeated said patient, a collimator configured to change the irradiation field of said X-ray to be irradiated, a scan controller configured to control the movement of said supporter and said imaging part, and an image-reconstructer configured to reconstruct image data based on the X-rays that have been detected by said X-ray detector, wherein the X-ray CT apparatus comprises: a detector configured to detect the amount of movement of said patient by said supporter, and a collimator controller configured to control so as to change the size of the opening of said collimator based on said amount of movement.