640-slice DVCT multi-dimensionally and dynamically presents changes in bladder volume and urine flow rate

Area of Science:

• Radiology and Imaging
• Urology
• Medical Diagnostics

Background:

• Conventional CT provides static imaging, limiting dynamic assessment of the urinary tract.
• Accurate evaluation of bladder and urethral dynamics is crucial for diagnosing urological conditions.

Purpose of the Study:

• To investigate the utility of 640-slice dynamic volume computed tomography (DVCT) for excretory cystography and urethrography.
• To assess the accuracy of 640-slice DVCT in evaluating bladder volume and urine flow rate during the voiding process.

Main Methods:

• Seventy healthy subjects underwent excretory cystography and urethrography using 640-slice DVCT.
• The voiding process was divided into five phases for continuous motion recording of the bladder and urethra.
• DVCT and conventional CT were used to analyze cross-sectional areas, calculate urine flow rate, and measure bladder volume.

Main Results:

• 640-slice DVCT accurately measured urine volume, showing no significant difference from actual volumes or conventional CT.
• Bladder volume measurements at different voiding phases were consistent between 640-slice DVCT and conventional CT.
• The technique accurately evaluated the status of the male posterior urethra and the female urethra.

Conclusions:

• 640-slice DVCT offers a multi-dimensional and dynamic visualization of bladder volume and urine flow rate.
• This advanced imaging modality provides results comparable to conventional CT for assessing urine volume and urethral status.
• 640-slice DVCT is a valuable tool for dynamic excretory cystography and urethrography.