van Waes P F, Koehler P R, Feldberg M A
AJR Am J Roentgenol. 1983 Jun;140(6):1137-42. doi: 10.2214/ajr.140.6.1137.
Twenty-one patients with rectal carcinoma were examined preoperatively in order to assess the accuracy of CT in recognizing the extraluminal extension of the tumor and its effect on treatment planning. Evaluation was done by barium enema, endoscopy, and standard CT augmented by nonreconstructed coronal and sagittal sections. The information was compared with the operative and pathologic findings. Correct staging was achieved in 19 out of 21 patients. In two patients, CT overestimated the extent of the disease. In two patients, small distant metastases detected at surgery were not appreciated; however, the extent of pelvic disease was accurately assessed. In 17 patients, CT added new important information unobtainable by standard techniques. This new information affected treatment planning in 10 patients.
对21例直肠癌患者进行术前检查，以评估CT在识别肿瘤腔外扩展及其对治疗计划影响方面的准确性。通过钡灌肠、内镜检查以及增加了未重建冠状面和矢状面图像的标准CT进行评估。将这些信息与手术及病理结果进行比较。21例患者中有19例分期正确。2例患者中，CT高估了疾病范围。2例患者中，手术时发现的小的远处转移未被CT发现；然而，盆腔疾病范围被准确评估。17例患者中，CT提供了标准技术无法获得的重要新信息。这些新信息影响了10例患者的治疗计划。
