超音波Doppler法による排尿状態の動的観察 : 基礎的検討と臨床応用例について

概要

論文の詳細を見る
Feasibility of ultrasonic Doppler shift technique to study the dynamics of lower urinary tract is demonstrated. Model experiment was performed to examine an error, lag time and response time of urine velocity curves recorded by this technique with the use of frequencymeter. In addition, some clinical experience were reported. The results are as follows. 1) Measured values of urine velocity were 9 to 13% higher than mean velocity. 2) Both lag time and response time were generally the same as those by magnetic flow meter recording. 3) Values of urine velocity at the transducer location along male urethra during voiding were about 195cm/sec, 150cm/sec and 130cm/sec at the glans, pendulum and perineum respectively. 4) There was a significant correlation between exit velocity and velocity of intraurethral urine flow at the glans. 5) Elevation of intravesical pressure and initiation of voiding were simultaneously observed on a patient with stress incontinence.
社団法人日本泌尿器科学会の論文