An imaging apparatus for diagnosis which has a motor drive unit for being connected to a catheter and for moving and rotating an imaging core accommodated in the catheter along a longitudinal direction of the catheter, and which is configured to generate a vascular optical coherence tomographic image and/or an ultrasound tomographic image of a subject based on a signal output from the catheter, the apparatus comprising: a first drive unit that is configured to apply an ultrasound drive signal to an ultrasound transceiver accommodated in a distal portion of the imaging core, and to acquire an electric signal indicating a reflected wave, assuming that the catheter is connected to the motor drive unit; and a second drive unit that is configured to supply light to an optical transceiver accommodated in the distal portion of the imaging core, and to acquire an electric signal indicating interference light, assuming that the catheter is connected to the motor drive unit, characterized by further comprising: a first inspection unit that is configured to inspect the presence or absence of the ultrasound transceiver, based on intensity distribution of the electric signal of the reflected wave which is obtained by the first drive unit; a second inspection unit that is configured to generate line image data in a radial direction, regarding a position of the imaging core as an origin, based on the electric signal of the interference light which is obtained by the second drive unit, and to inspect the presence or absence of the optical transceiver, based on pixel data distribution within a predetermined range from a position of the origin; and a determination unit that is configured to determine whether the catheter connected to the motor drive unit is any one of a catheter dedicated to diagnosis of the ultrasound tomographic image, a catheter dedicated to diagnosis of the optical coherence tomographic image, and a catheter corresponding to both the ultrasound tomographic image and the optical coherence tomographic image, based on an inspection result of the first inspection unit and an inspection result of the second inspection unit. a first drive unit that is configured to apply an ultrasound drive signal to an ultrasound transceiver accommodated in a distal portion of the imaging core, and to acquire an electric signal indicating a reflected wave, assuming that the catheter is connected to the motor drive unit; and a second drive unit that is configured to supply light to an optical transceiver accommodated in the distal portion of the imaging core, and to acquire an electric signal indicating interference light, assuming that the catheter is connected to the motor drive unit, characterized by further comprising: a first inspection unit that is configured to inspect the presence or absence of the ultrasound transceiver, based on intensity distribution of the electric signal of the reflected wave which is obtained by the first drive unit; a second inspection unit that is configured to generate line image data in a radial direction, regarding a position of the imaging core as an origin, based on the electric signal of the interference light which is obtained by the second drive unit, and to inspect the presence or absence of the optical transceiver, based on pixel data distribution within a predetermined range from a position of the origin; and a determination unit that is configured to determine whether the catheter connected to the motor drive unit is any one of a catheter dedicated to diagnosis of the ultrasound tomographic image, a catheter dedicated to diagnosis of the optical coherence tomographic image, and a catheter corresponding to both the ultrasound tomographic image and the optical coherence tomographic image, based on an inspection result of the first inspection unit and an inspection result of the second inspection unit. a first inspection unit that is configured to inspect the presence or absence of the ultrasound transceiver, based on intensity distribution of the electric signal of the reflected wave which is obtained by the first drive unit; a second inspection unit that is configured to generate line image data in a radial direction, regarding a position of the imaging core as an origin, based on the electric signal of the interference light which is obtained by the second drive unit, and to inspect the presence or absence of the optical transceiver, based on pixel data distribution within a predetermined range from a position of the origin; and a determination unit that is configured to determine whether the catheter connected to the motor drive unit is any one of a catheter dedicated to diagnosis of the ultrasound tomographic image, a catheter dedicated to diagnosis of the optical coherence tomographic image, and a catheter corresponding to both the ultrasound tomographic image and the optical coherence tomographic image, based on an inspection result of the first inspection unit and an inspection result of the second inspection unit.