Previous anatomic studies of the lower urinary tract predominantly utilize ultrasound and computed tomography. We present a novel method for measuring bladder wall volume (BWV), bladder wall thickness (BWT) and prostate volume (PV) using 30 (14 male) patients aged 30-39. Through MRI segmentation of the bladder and prostate in Mimics software, 3D models were quantified for BWV and PV. 3-matic was used to measure BWT. There were no significant differences in BWV or BWT between males and females (p=0.52,0.25). Mean PV was 28.7cm3 (16.7-47.8cm3). Non-significant variations in BWT were observed regionally. Future directions will use this methodology across age groups.