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Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing
Published on: August 14, 2019
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A pilot study of bladder voiding with real-time MRI and computational fluid dynamics
Ryan Pewowaruk1, David Rutkowski2,3, Diego Hernando3,4
1Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, United States of America.
Plos One
|November 19, 2020
Summary
This study introduces real-time MRI voiding analysis to assess bladder function. The novel method revealed decreased and asymmetric bladder wall motion in men with benign prostatic hyperplasia and lower urinary tract symptoms (BPH/LUTS).
Area of Science:
- Urology
- Medical Imaging
- Biophysics
Background:
- Lower urinary tract symptoms (LUTS) are common in older adults.
- Current urodynamic studies lack anatomical and muscle function insights.
- Benign prostatic hyperplasia (BPH) is a common cause of LUTS.
Purpose of the Study:
- To present a novel real-time MRI method for bladder voiding analysis.
- To evaluate bladder wall displacement and urine flow dynamics during voiding.
- To investigate functional and anatomical changes in BPH/LUTS.
Main Methods:
- Developed and implemented a real-time MRI urodynamic protocol.
- Recruited healthy male volunteers and men with BPH/LUTS.
- Analyzed bladder wall displacement and computational fluid dynamics during voiding.
Main Results:
- Successfully implemented the MRI urodynamic protocol.
- Healthy controls showed maximal bladder wall displacement at the dome.
- Men with BPH/LUTS exhibited reduced, asymmetric bladder wall motion and increased intravesical recirculation regions.
Conclusions:
- Real-time MRI voiding studies are feasible.
- This technique offers new insights into lower urinary tract function in health and disease.
- MRI urodynamics can differentiate bladder function in BPH/LUTS.
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