Abstract: In order to effectively use an angiography arm and a CT gantry and improve examination efficiency, angiographic imaging of a subject Ha in an angiography room Ra and CT imaging of a subject Hc in a CT room Rc are independently performed in one mode. In another, a CT gantry 40 is moved to the angiography room Ra with an X-ray protection door D open, to alternately perform angiographic imaging and CT imaging on the subject Ha in the angiography room Ra in a cycle of, for example, five minutes.

Abstract: In order to provide a biplane angiography/CT apparatus which can alternately perform CT imaging and simultaneous angiographic imaging in frontal and lateral planes, and which does not make a subject feel discomfort and has improved safety, a lateral arm 30 for performing angiographic imaging in the lateral plane is provided in addition to a frontal arm 20 and a CT gantry 40. Moreover, a control apparatus 50 is provided for, when angiographic imaging is to be performed, retracting the CT gantry 40 to a position not hindering the angiographic imaging and moving the frontal and lateral arms 20 and 30 to an angiographic imaging position, and when CT imaging is to be performed, retracting the frontal and lateral arms 20 and 30 to positions not hindering the CT imaging and moving the CT gantry 40 to a CT imaging position.

Abstract: In order to effectively use an angiography arm and a CT gantry and improve examination efficiency, angiographic imaging of a subject Ha in an angiography room Ra and CT imaging of a subject Hc in a CT room Rc are independently performed in one mode. In another, a CT gantry 40 is moved to the angiography room Ra with an X-ray protection door D open, to alternately perform angiographic imaging and CT imaging on the subject Ha in the angiography room Ra in a cycle of, for example, five minutes.