All were subjected to transrectal ultrasonography.Results: Transrectal ultrasonography could show vivid images of prostate, seminal vesicle.

• 结果：经直肠超声检查可获得清晰的前列腺、精囊结构图像，显示精囊与输精管壶腹、射精管、前列腺及膀胱后尿道的解剖关系；