Mapping of the Human Brainstem During Continence and Micturition: Noninvasive 7-T fMRI Study

"A T1-weighted Anatomical Image, Diffusion Weighted Image, and functional MRI (fMRI) of empty bladder image will be obtained.~Additionally, fMRI image during full bladder state and voiding/holding tasks will be obtained."

The patient's post-void residual is determined using a portable ultrasound machine after emptying the bladder just prior to entering the MRI scanner and immediately after the MRI scan.

Patients will urinate into a funnel connected to an electric flow meter to record urine flow rates in mililters per second. This is used as part of the screening process.

Subjects will fill out questionnaire asking about urinary symptoms. The range is 0-35.