In one embodiment, an MRI apparatus is configured to be connected with a pressure device that externally pressures a blood vessel of an object, and includes a scanner configured to perform imaging on the object and processing circuitry. The processing circuitry controls the pressure device in such a manner that ischemia and reperfusion are caused with respect to the object, determines a start timing of the imaging on the basis of a state of pressurization caused by the pressure device, causes the scanner to perform the imaging on the object in accordance with the start timing, and generates an image by using data acquired in the imaging.