A scan condition setting apparatus sets a scan condition used upon scanning a subject. The apparatus includes a selection device having a plurality of combinations of scan times and image quality and selecting one from within the combinations according to a manipulation of an operator, and a scan condition storage device for storing scan conditions corresponding to the combinations of the scan times and image quality therein. The scan condition corresponding to the combination of the scan times and image quality selected by the selection device is set as the scan condition used when the subject is scanned.