Norberg M, Busch C, Stavinoha J, Scardino P T, Magnusson A
Department of Diagnostic Radiology, University Hospital, Uppsala, Sweden.
Acta Radiol. 1994 Sep;35(5):463-7.
Transrectal ultrasound (TRUS) examination is a well established method for the diagnosis of prostate cancer. The examination technique has, however, certain limitations, and biopsies are needed to differentiate between malignant and benign lesions. In order to determine the influence of the thickness of the needle on the histopathological evaluation of specimens, core biopsies were taken from 36 patients with hypoechoic lesions suggestive of cancer detected by TRUS, using a 1.2-mm cutting needle followed by a thinner needle (0.9-, 0.8- or 0.7-mm). A total of 164 biopsies from 41 hypoechoic lesions were obtained. The specimens were coded and examined by a pathologist. They were judged according to amount of tissue obtained, quality, length, malignancy and grade. The best results were obtained with the 1.2- and 0.9-mm needles. The results were comparable and reliable for both needle types which can be recommended for clinical practice. The 0.8- and 0.7-mm needles were found to give more or less unsatisfactory results.
经直肠超声（TRUS）检查是诊断前列腺癌的一种成熟方法。然而，该检查技术存在一定局限性，需要进行活检以区分恶性和良性病变。为了确定针的粗细对标本组织病理学评估的影响，对36例经TRUS检测出有可疑癌症的低回声病变患者进行了穿刺活检，先用1.2毫米的切割针，然后用更细的针（0.9毫米、0.8毫米或0.7毫米）。从41个低回声病变中总共获取了164份活检标本。标本进行编码后由病理学家检查。根据获得的组织量、质量、长度、恶性程度和分级进行判断。1.2毫米和0.9毫米的针取得了最佳结果。两种针型的结果具有可比性且可靠，可推荐用于临床实践。发现0.8毫米和0.7毫米的针给出的结果或多或少不尽人意。
