Kojima M, Inui E, Ochiai A, Naya Y, Ukimura O, Watanabe H
Department of Urology, Kyoto Prefectural University of Medicine, Japan.
Urology. 1996 Jun;47(6):942-7. doi: 10.1016/S0090-4295(96)00059-3.
The aim of the present study was to evaluate the usefulness of ultrasonic estimation of bladder weight as a measure of bladder hypertrophy using transabdominal ultrasonography in men with infravesical obstruction. Ultrasonically estimated bladder weight (UEBW) was calculated from the thickness of the bladder wall measured ultrasonically and the intravesical volume at the ultrasonic measurement, assuming a spheric bladder. There was a statistically significant correlation (r = 0.970, P <0.001) between the actual bladder weight of cadaver bladders and the UEBW. The UEBW did not change with bladder filling. The UEBW in the obstructed group (group O, 49.7 +/- 19.5 g, mean +/- SD) was significantly greater than that in the normal control group (group NC, 25.6 +/- 5.7 g; P <0.001) or the nonobstructed group (group NO, 28.4 +/- 4.2 g; P <0.001). The greatest UEBW was 34.8 g in group NC and 35.2 g in group NO, whereas 94% (45 of 48) of group O had a UEBW greater than 35.0 g. In all 5 patients with benign prostatic hyperplasia (BPH), the increased UEBW decreased to a normal control level at 3 months after treatment of BPH. This new noninvasive method may be useful in investigation of bladder hypertrophy.
本研究的目的是评估经腹部超声检查对膀胱重量进行超声估计作为膀胱肥厚测量方法在膀胱颈以下梗阻男性中的实用性。假设膀胱为球形，超声估计膀胱重量（UEBW）由超声测量的膀胱壁厚度和超声测量时的膀胱内体积计算得出。尸体膀胱的实际重量与UEBW之间存在统计学显著相关性（r = 0.970，P <0.001）。UEBW不随膀胱充盈而变化。梗阻组（O组，49.7±19.5 g，平均值±标准差）的UEBW显著高于正常对照组（NC组，25.6±5.7 g；P <0.001）或非梗阻组（NO组，28.4±4.2 g；P <0.001）。NC组最大UEBW为34.8 g，NO组为35.2 g，而O组94%（48例中的45例）的UEBW大于35.0 g。在所有5例良性前列腺增生（BPH）患者中，BPH治疗3个月后，增加的UEBW降至正常对照水平。这种新的非侵入性方法可能对膀胱肥厚的研究有用。
