Inclusion Criteria:  Diagnosis of neurogenic lower urinary tract dysfunction consistent with International Continence Society definition which includes all bladder/urinary sphincter dysfunction related to any neurological disease or injury Male or female If SCI, time from injury > 6 months to allow for recovery from the acute phase Can tolerate lying prone > 1 hour Functional bladder capacity > 100 mL confirmed by urodynamics examination Low risk of upper urinary tract deterioration Over 18 years of age, able to speak and understand English, capacity for consent  Exclusion Criteria:  Active urinary tract infection Chronic indwelling or suprapubic catheter usage Severe or rapidly progressive neurologic disease Abnormal sacral anatomy Anticipated need for MRI of body parts below the head Pelvic organ prolapse beyond the hymen Pregnancy Treatment with Botox injection within last six months Current treatment with percutaneous tibial nerve stimulation or other forms of neuromodulation History of sacral neuromodulation treatment or presence of sacral neuromodulation leads or implant Interstitial cystitis/bladder pain syndrome Benign prostatic hyperplasia preventing catheterization to empty History of anatomically relevant pelvic or anti-incontinence surgery