论文部分内容阅读
目的评估经直肠超声下的前列腺低回声区及其临床意义。方法1999年8月至2006年8月438例患者接受了经直肠超声引导前列腺系统穿刺活检术,活检点数为6~13点。如果经直肠超声检查发现前列腺的低回声区,亦加取该区部位的活检。将低回声区、等回声区的活检结果进行比较。结果总的癌检出率112/438(25.6%)。112例前列腺癌患者中,有低回声区者75例,占67%,无低回声区者37例,占33%。本组总共取得3504个活检点,取自低回声区者636个。636个低回声区中阳性163个,占25.6%,阴性473个,占74.4%。腺体中有和无低回声区检出前列腺癌的阳性率分别为25.2%(75/298)和26.4%(37/140)(P>0.05),差异无统计学意义。结论多数前列腺癌可发现低回声区,但多数低回声区并非前列腺癌。腺体中有无低回声区对前列腺癌的检出率相当。
Objective To evaluate the hypoechoic region of the prostate under transrectal ultrasound and its clinical significance. Methods From August 1999 to August 2006, 438 patients underwent transrectal ultrasound guided prostatic biopsy, with biopsies ranging from 6 to 13 points. If transrectal ultrasound examination of the hypoechoic region of the prostate, but also take the area of the biopsy. The hypoechoic area, the echo area biopsy results were compared. Results The overall cancer detection rate was 112/438 (25.6%). In 112 cases of prostate cancer, there were 75 cases with hypoechoic area, accounting for 67%, 37 cases without hypoechoic area, accounting for 33%. This group made a total of 3504 biopsy sites, taken from 636 hypoechoic area. Of the 636 hypoechoic regions, 163 were positive, accounting for 25.6% and 473 were negative, accounting for 74.4%. The positive rates of detecting prostate cancer in the gland with and without hypoechoic region were 25.2% (75/298) and 26.4% (37/140) respectively (P> 0.05), but the difference was not statistically significant. Conclusions Most hypoechoic regions are found in prostate cancer, but most hypoechoic regions are not prostate cancer. The presence or absence of hypoechoic glands in prostate cancer detection rate quite.