An X-ray CT apparatus includes a processing circuit. The processing circuit adjusts an image taking area of a subject by receiving an operation performed on a light projector provided on a gantry and further sets the adjusted image taking area as an image taking condition included in first image taking conditions； adjusts an image taking area of the subject by receiving an operator's operation via terminal equipment and further sets the adjusted image taking area as an image taking condition included in second image taking conditions； and causes the gantry to perform the image taking process on the basis of selection information selecting from between the first and the second image taking conditions as image taking conditions used for performing the image taking process.
