Goldman S, Arvidsson H, Norming U, Lagerstedt U, Magnusson I, Frisell J
Department of Surgery, Södersjukhuset, Stockholm, Sweden.
Gastrointest Radiol. 1991 Summer;16(3):259-63. doi: 10.1007/BF01887361.
A comparison of transrectal ultrasound (TRUS) and computed tomography (CT) for staging of rectal carcinoma was performed. Thirty-two patients were examined by TRUS and 30 by CT. The results of these preoperative examinations were compared with postoperative histopathological findings. TRUS had an accuracy of 81% and it predicted perirectal tumor growth with a sensitivity of 90% and a specificity of 67%, whereas the corresponding figures for CT were 52%, 67%, and 27%. These findings indicate that TRUS is more efficient than CT in staging local tumor growth in rectal cancer. Neither technique, however, can reliably identify lymph node metastases, since no correlation was found between lymph node size as observed on CT and TRUS and tumor involvement as evaluated histopathologically.
对经直肠超声（TRUS）和计算机断层扫描（CT）用于直肠癌分期进行了比较。32例患者接受了TRUS检查，30例接受了CT检查。将这些术前检查结果与术后组织病理学结果进行了比较。TRUS的准确率为81%，其预测直肠周围肿瘤生长的敏感性为90%，特异性为67%，而CT的相应数字分别为52%、67%和27%。这些结果表明，在直肠癌局部肿瘤生长分期方面，TRUS比CT更有效。然而，两种技术均不能可靠地识别淋巴结转移，因为在CT和TRUS上观察到的淋巴结大小与组织病理学评估的肿瘤累及情况之间未发现相关性。
