PROBLEM TO BE SOLVED: To provide an X-ray CT apparatus capable of easily associating a CT image with the corresponding electrocardiographic waveform image and easily displaying the electrocardiographic waveform data corresponding to the electrocardiographic waveform image.SOLUTION: An X-ray CT apparatus according to an embodiment comprises a setting unit, a specification unit, a reconstruction processing unit, a storage unit, control unit, and a display control unit. The control unit causes, on the basis of a signal to initiate reconstruction processing, the electrocardiographic waveform data with a desired range set therefor, the electrocardiographic waveform image data based on the electrocardiographic waveform data, and the CT image data based on specified detection data, to be stored in associated with each other. The display control unit displays, on the display unit, the electrocardiographic waveform image based on the stored electrocardiographic waveform image data together with the CT image based on the stored CT image data. If an electrocardiographic waveform image is selected, the display control unit displays on the display unit the electrocardiographic waveform data with a desired range set corresponding to the selected electrocardiographic waveform image.COPYRIGHT: (C)2015,JPO&INPIT
