Patent ID: 6901129

Claim:
An X-ray computer tomography apparatus comprising: an X-ray source which emits X-rays; an X-ray detector which has a plurality of detection elements configured to detect X-rays transmitted through an object to be examined; a scanogram generating section which generates a scanogram of the object on the basis of an output from said X-ray detector; a distribution information generating section which generates distribution information of X-ray absorptances or absorbed X-ray doses in a first direction by dividing the scanogram in matrixes and calculating X-ray absorptances or absorbed X-ray doses on a matrix basis, and in a second direction different from the first direction by adding X-ray absorptances or absorbed X-ray doses on a matrix basis in the second direction; an imaging condition determining section configured to determine the imaging condition on the basis of the distribution information in the first and second directions; and a controller which controls computer tomography of the object on the basis of the imaging condition.