Bangma C H, Niemer A Q, Grobbee D E, Schröder F H
Department of Urology, Erasmus University, Rotterdam, The Netherlands.
Prostate. 1996 Feb;28(2):107-10. doi: 10.1002/(SICI)1097-0045(199602)28:2<107::AID-PROS5>3.0.CO;2-D.
In order to assess the accuracy of various volumetric methods for screening and follow-up of prostatic disease, total prostate volume and inner zone volume were measured by transrectal ultrasonography in a screening population of 716 men. Semiplanimetric and caliper formula methods were compared with step section planimetry as the gold standard. Planimetric volumetry of the prostate is regarded as the most reproducible method for individual follow-up of total gland and inner zone volume. The prolate spheroid formula is the most reproducible of caliper formula methods for both volumes. In this study the elliptical volume was, however, more accurate than the prolate spheroid volume of the total gland, as the correlation coefficient between total elliptical volume and planimetry was higher compared to the prolate spheroid volume (0.89 vs. 0.83), and the standard deviation of the mean volumetric difference smaller. The mean total prolate spheroid volume resembled the mean total planimetric volume better than the elliptical volume did, as the mean volumetric difference was smaller. For measurement of the inner zone volume the prolate spheroid volume was more accurate that the elliptical volume. The correlation coefficient between length and planimetric volume was similar to that of width and height, which accounted for more accuracy of the elliptical volume that of the prolate spheroid volume in larger prostates. The elliptical volume might be used for incidental volumetric measurements of the total gland, and for comparison of different individuals, e.g., in preoperative evaluation or screening studies.
为评估各种前列腺疾病筛查及随访容积测量方法的准确性，采用经直肠超声对716名男性筛查人群测量了前列腺总体积和内区体积。将半平面测量法和卡尺公式法与作为金标准的阶梯切片平面测量法进行比较。前列腺平面测量容积法被认为是对整个腺体和内区体积进行个体随访的最可重复方法。对于这两个体积，长椭圆体公式是卡尺公式法中最可重复的。然而，在本研究中，椭圆体积比腺体的长椭圆体体积更准确，因为总椭圆体积与平面测量法之间的相关系数高于长椭圆体体积（0.89对0.83），且平均容积差异的标准差更小。平均总椭球体体积比椭圆体积更接近平均总平面测量体积，因为平均容积差异更小。对于内区体积的测量，长椭圆体体积比椭圆体积更准确。长度与平面测量体积之间的相关系数与宽度和高度的相似，这解释了在较大前列腺中椭圆体积比长椭圆体体积更准确的原因。椭圆体积可用于对整个腺体进行偶然的容积测量，以及用于不同个体的比较，例如在术前评估或筛查研究中。
