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目的评价改良胃肠低张多层螺旋CT(MSCT)扫描三维重建术对胃肠病变的诊断价值。方法回顾性分析48例经手术与病理证实的胃肠道病变患者资料,本组均于检查当天口服5.07%等渗甘露醇溶液行肠道充盈并低张;予以MSCT进行螺旋扫描,并使用后处理图像多平面重建(MPR)、透明显示(Ravsum)、表面遮盖显示(SSD)、内窥镜(CTVE)实施三维重建。结果诊断出淋巴瘤6例,间质瘤8例,结肠癌9例:3例浸润溃疡型,6例为菌伞型;胃窦癌2例,阑尾炎9例:5例为急性阑尾炎,4例为阑尾-盲肠周围炎;脂肪瘤2例;直、结肠息肉12例,且可清楚显示出胃肠病变的形态、大小、肿瘤灶周血供及癌肿向周围的侵犯程度。结论改良胃肠低张可提供较好的胃肠显示背景,结合多层螺旋CT扫描三维重建术在胃肠病变的诊断方面具有较高的诊断价值。
Objective To evaluate the diagnostic value of improved gastrointestinal tract lesion by modified low resolution multi-slice spiral CT (MSCT) three-dimensional reconstruction. Methods A retrospective analysis of 48 cases of patients with gastrointestinal lesions confirmed by surgery and pathology, the group were on the day of oral administration of 5.07% isotonic mannitol solution of intestinal filling and low; MSCT spiral scan, and after use Multi-plane reconstruction (MPR), Ravsum, SSD, and CTVE were performed for three-dimensional reconstruction. The results of diagnosis of lymphoma in 6 cases, 8 cases of stromal tumors, 9 cases of colon cancer: 3 cases of infiltrative ulceration, 6 cases of bacterial umbrella; 2 cases of gastric cancer, appendicitis in 9 cases: 5 cases of acute appendicitis, 4 cases For the appendix - cecum around the inflammation; lipoma in 2 cases; straight, colon polyps in 12 cases, and can clearly show the shape of gastrointestinal lesions, size, tumor blood supply to the peritumoral and surrounding the extent of cancer violations. Conclusion Improved gastrointestinal hypotension can provide a good gastrointestinal display background, combined with multi-slice spiral CT three-dimensional reconstruction of the diagnosis of gastrointestinal lesions has a high diagnostic value.