Beynon J, Roe A M, Foy D M, Channer J L, Virjee J, Mortensen N J
J R Soc Med. 1987 Jan;80(1):23-4. doi: 10.1177/014107688708000110.
Digital examination is the most commonly used method of assessing local invasion in rectal cancer, but it is highly subjective and accuracy is related to surgical experience. The use of transrectal ultrasound in the preoperative staging of rectal cancer has been assessed in 51 patients with histologically proven rectal cancers. Results showed a high degree of correlation when compared with postoperative histopathology (r = 0.91, P less than 0.001). Invasion beyond the muscularis propria was predicted with a sensitivity of 97%, specificity of 92% and predictive value of 97%.
直肠指检是评估直肠癌局部侵犯最常用的方法，但主观性很强，准确性与手术经验有关。对51例经组织学证实的直肠癌患者评估了经直肠超声在直肠癌术前分期中的应用。与术后组织病理学相比，结果显示出高度相关性（r = 0.91，P＜0.001）。对固有肌层外侵犯的预测敏感性为97%，特异性为92%，预测值为97%。
