Hammerer P G
Abteilung für Urologie, Stanford Universität.
Radiologe. 1994 Mar;34(3):116-21.
In 75-80% of all clinically significant prostate cancer, the peripheral zone appears to be hypoechoic on transrectal ultrasound (TRUS). However, examination by TRUS alone in a screening program is not recommended due to its low sensitivity. The combination of prostate-specific antigen, digital rectal examination, and TRUS increases the detection rate of prostate cancer. In prostate cancer arising from the transition zone, TRUS findings are often nonspecific. Even prostate biopsies might be negative due to the location of this tumor. Anterior biopsies of the transition zone will identify these prostate cancers. Color Doppler ultrasound of the prostate has little additional value over TRUS alone in the diagnosis of prostate cancer.
在所有具有临床意义的前列腺癌中，75%至80%的病例在经直肠超声检查（TRUS）中显示外周带呈低回声。然而，由于其敏感性较低，不建议在筛查项目中仅通过TRUS进行检查。前列腺特异性抗原、直肠指检和TRUS联合应用可提高前列腺癌的检出率。对于起源于移行带的前列腺癌，TRUS检查结果通常不具有特异性。甚至由于该肿瘤的位置，前列腺活检结果也可能为阴性。对移行带进行前部活检可发现这些前列腺癌。在前列腺癌的诊断中，前列腺彩色多普勒超声相对于单纯的TRUS几乎没有额外价值。
