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目的:旨在探讨直肠腔内B超扫描在术前分期、判断局部浸润和淋巴扩散中的价值。方法:采用日本Aloka-SSD-20型实际超声显像仪,棒状单平面7.5MHz探头对100例直肠肿瘤进行术前直肠腔内扫描。结果:在13例直肠腺瘤中对局部浸润深度的诊断全部正确。87例直肠癌中对局部浸润深度的诊断正确率为82.76％。故全组对局部浸润深度的诊断正确率为85％。对肠外淋巴结受累的诊断正确率为75％。对邻近器官受累的诊断正确率为100％。结论:腔内B超扫描作为一项术前辅助诊断措施,具有方便、安全、无创伤、无痛苦及正确率高等特点。
Objective: To investigate the value of rectal cavity B-scan in the preoperative staging and judgment of local infiltration and lymphatic spread. Methods: 100 cases of rectal tumors were preoperatively performed rectal intraluminal scanning using a Japanese Aloka-SSD-20 real-time ultrasound imaging system and a rod-shaped single-plane 7.5 MHz probe. Results: In 13 cases of rectal adenoma, the diagnosis of local infiltration depth was correct. The diagnostic accuracy of local infiltration depth in 87 cases of rectal cancer was 82.76%. Therefore, the accuracy of diagnosis of local infiltration depth in the whole group was 85%. The diagnostic accuracy of the involvement of the parenteral lymph nodes is 75%. The diagnostic accuracy of the involvement of adjacent organs is 100%. Conclusion: Intraluminal ultrasound scanning as a preoperative auxiliary diagnostic measure is convenient, safe, non-invasive, painless, and high in accuracy.