经直肠B超诊断前列腺癌

目的：评价经直肠B超（TRUS）临床诊断前列腺癌的价值。方法：应用端扫式双平面高频（7.5MHz)探头经直肠检查56例前列腺癌并分析其声像特征。结果：病灶位于前列腺外周带43例（76.8%）、移行带8例（14.3%)、中央带5例（8.9%)。病灶直接声像学特征：45例（80.4%)低回声型，4例（7.1%)高回声型，2例（3.6%)等回声型，5例（8.9%）混合回声型。病灶间接征象包括前列腺不对称、包膜隆起或中断、精囊扩张或消失。结论：经直肠B超是前列腺癌诊断及判断分散的一种有价值的检查方法。

The clinical diagnosis of the prostate cancer by transrectal ultrasonography

Purpose:To evaluate the use of transrectal ultrasonography in diagnosis of prostate cancer.Methods:A high-frequency probe was used to examine 56 cases of prostate cancer transrectally and the sonographic features were analyzd. Results:On Trus image lesions were located in peripheral zone in 48(76 8%), transition zone in 8 (14.3%),and central zone in 5 (8.9%). 45 cases (80.4%) of the prostate cancer were hypoechoic,4(7.1%) were hyperechoic, 5(8.9%) had mixed echogenicity and 2 (3.6%)showed isoechoic appearance. Indirect signs represented prostatic asymmetry,intermittent capsular and dilation or disappear of the seminal vesicles.Conclusions:TRUS is imperative in the diagnosis and staging of prostate cancer.