MP18-03: Novel development of the visual uroflowmetry using color laser-light sheets
Friday, May 3, 2024 3:30 PM to 5:30 PM · 2 hr. (US/Central)
302B
Abstract
Information
Full Abstract and Figures
Author Block
Jun Ajiki*, Yasuyuki Naitoh, Kyoto city, Japan, Tamaki Hamato, Kyoto, Japan, Shunya Aburatani, Shigeru Murata, Osamu Ukimura, Kyoto city, Japan
Introduction
Conventional uroflowmetry is a measurement based on micturition volume and time, and there is no examination equipment that could evaluate the micturition dynamics morphologically. The purpose of the study is to develop a method (visual uroflowmetry) to visualize the spatial distribution of urine and quantitatively visualize and measure micturition dynamics using color laser-light sheets.
Methods
Visualization of the spatial distribution of urination using color laser-light sheets with two-colors horizontal cutting light and a color camera The urination is visualized using two parallel colored horizontal cutting lights at regular intervals, which are photographed by a color camera from vertically above (Fig. 1). The urinary flow passes through a horizontal cut of two colors of light, and digital image information is recorded through each section of the urinary flow. By applying these image processes, it is possible to measure urinary velocity, volume, flow rate, and urodynamics information. In the present study, as a performance test, visualized evaluation of urinary flow rate and its dynamics were performed for three urinary drainage models (healthy type, Obstruction type such as benign prostatic hyperplasia, and neurogenic bladder type) using simulated urination in which flow rate changes can be varied as set using a solenoid valve.
Results
Using this method, in addition to the urinary flow rate, the temporal variation of the spatial distribution of simulated urination passing through the optical cut surface and the shape of the urinary flow could be visualized. Finally, differences in the spatial distribution of simulated urination and dynamic changes in the shape of the urinary flow were clarified for the three urination models (Fig. 2)
Conclusions
By using two-color laser-light sheets and a color camera, the spatial distribution of urination and changes of urinary flow with time could be visualized. This technology can present morphological information on the patient's urodynamic information and is expected to become a new urodynamic test.
Source Of Funding
none
Author Block
Jun Ajiki*, Yasuyuki Naitoh, Kyoto city, Japan, Tamaki Hamato, Kyoto, Japan, Shunya Aburatani, Shigeru Murata, Osamu Ukimura, Kyoto city, Japan
Introduction
Conventional uroflowmetry is a measurement based on micturition volume and time, and there is no examination equipment that could evaluate the micturition dynamics morphologically. The purpose of the study is to develop a method (visual uroflowmetry) to visualize the spatial distribution of urine and quantitatively visualize and measure micturition dynamics using color laser-light sheets.
Methods
Visualization of the spatial distribution of urination using color laser-light sheets with two-colors horizontal cutting light and a color camera The urination is visualized using two parallel colored horizontal cutting lights at regular intervals, which are photographed by a color camera from vertically above (Fig. 1). The urinary flow passes through a horizontal cut of two colors of light, and digital image information is recorded through each section of the urinary flow. By applying these image processes, it is possible to measure urinary velocity, volume, flow rate, and urodynamics information. In the present study, as a performance test, visualized evaluation of urinary flow rate and its dynamics were performed for three urinary drainage models (healthy type, Obstruction type such as benign prostatic hyperplasia, and neurogenic bladder type) using simulated urination in which flow rate changes can be varied as set using a solenoid valve.
Results
Using this method, in addition to the urinary flow rate, the temporal variation of the spatial distribution of simulated urination passing through the optical cut surface and the shape of the urinary flow could be visualized. Finally, differences in the spatial distribution of simulated urination and dynamic changes in the shape of the urinary flow were clarified for the three urination models (Fig. 2)
Conclusions
By using two-color laser-light sheets and a color camera, the spatial distribution of urination and changes of urinary flow with time could be visualized. This technology can present morphological information on the patient's urodynamic information and is expected to become a new urodynamic test.
Source Of Funding
none
Sessions
MP18: Imaging/Uroradiology I
302B