Patent ID: 7269246
Filing Date: 2007-09-11
Classification: A61B

Abstract:
1. An X-ray angiography apparatus comprising: a C-arm; a support mechanism which rotatably supports the C-arm; a rotation driving unit which drives rotation of the C-arm; an X-ray tube which is mounted on one end of the C-arm; an X-ray detector which is mounted on the other end of the C-arm in a direction to face the X-ray tube; and a control unit which controls the X-ray detector to make a frame rate of the X-ray detector be the same in a mask image imaging period in which a plurality of mask images are taken and in a contrast image imaging period in which a plurality of contrast images are taken, and controls the rotation driving unit to make a rotational speed of the C-arm in the contrast image imaging period become higher than the rotational speed of the C-arm in the mask image imaging period.