Patent ID: 6795524
Filing Date: 2004-09-21
Classification: A61B

Abstract:
An X-ray diagnosis apparatus comprising:a bed on which a patient lies down; a support unit including an X-ray generator configured to emit X-ray to the patient and an X-ray detector configured to detect the X-ray emitted form said X-ray generator; a movement mechanism configured to change a relative position of said support unit with respect to said the patient; a position detector configured to detect the relative position changed by the movement mechanism; a memory configured to acquire an information with respect to the relative position from said position detector at timing of the X-ray emitting by the X-ray generator and to store the information acquired as to a first image formed by emitting X-ray to the patient from the X-ray generator while the movement mechanism changes the relative position in a first direction; a controller configured to control timing of the X-ray emitting by the X-ray generator on the basis of the information stored in said memory when a second image is acquired by emitting X-ray to the patient injected with contrast medium while the movement mechanism changes the relative position in a second direction, in such a manner that the second image corresponds to the first image; and an image generator configured to generate a third image by subtracting the first image from the second image.