Begin filling bladder and aseptically inject tracer into injection port. Start camera acquisition. Deflate catheter balloon, carefully remove catheter out. Allow patient to void freely in a bedpan or urinal during the acquisition. If the patient can cooperate it is preferable to perform this phase of imaging in an upright position.
Rotate camera facing out, set a bedpan on a chair or stool.
Instruct patient to sit on bedpan with his back against the camera face.