Hernandez A D, Urry R L, Smith J A
Department of Surgery, University of Utah Center for the Health Sciences, Salt Lake City.
J Urol. 1990 Dec;144(6):1380-2. doi: 10.1016/s0022-5347(17)39747-1.
A total of 12 men from a sperm donor bank underwent transrectal ultrasonography before and after ejaculation to investigate possible changes that could influence interpretation of seminal vesicle ultrasonography. The mean length of the seminal vesicles was 2.98 cm. before and 2.95 cm. after ejaculation. The anteroposterior diameter decreased only from 0.59 to 0.52 cm. Minimal differences were noted between the right and left seminal vesicles, and the greatest variation in size in an individual was only 3 mm. These results indicate that interpretation of seminal vesicle anatomy as seen by ultrasonography does not depend upon the temporal relationship to ejaculation.
来自一家精子库的12名男性在射精前后接受了经直肠超声检查,以研究可能影响精囊超声检查结果解读的变化。射精前精囊的平均长度为2.98厘米,射精后为2.95厘米。前后径仅从0.59厘米降至0.52厘米。左右精囊之间的差异极小,个体精囊大小的最大变化仅为3毫米。这些结果表明,超声检查所见的精囊解剖结构解读并不取决于与射精的时间关系。