Patent ID: 8064569

Claim:
An X-ray CT imaging apparatus comprising: an X-ray generating section for generating an X-ray cone beam; an X-ray image capturing section for detecting said X-ray cone beam generated from said X-ray generating section, having passed through an object; a supporting section for supporting said X-ray generating section and said X-ray image capturing section with said object positioned therebetween; a holding section for holding said object; a rotation driving section for rotating said supporting section relatively to said object; and an X-ray controlling section for alleviating an influence of a high X-ray absorption region, existing outside of the CT imaging area, present inside said object, in imaging by said X-ray image capturing section, by increasing the output of said X-ray cone beam while said supporting section is within a rotational angle where said X-ray cone beam passes through both of said CT imaging area and said high X-ray absorption region by a larger amount of said X-ray cone beam than while said supporting section is within a rotational angle where said X-ray cone beam passes through said CT imaging area but does not pass through said high X-ray absorption region by means of a previously arranged control model formed based upon high X-ray absorption region information as information on a position of the high X-ray absorption region.