摘要
目的 研究CT仿真结肠镜 (CTvirtualcolonoscopy ,CTVC)检查的临床应用价值。材料与方法 应用螺旋CT对 10 2例患者行容积扫描 ,包括结、直肠癌 6 4例 ,结、直肠息肉 2 6例 ,溃疡性结肠炎、慢性结肠炎各 3例 ,脂肪瘤 2例 ,恶性非霍奇金淋巴瘤、脾恶性非霍奇金淋巴瘤侵犯结肠、类癌和子宫内膜异位各 1例 ,憩室 7个病灶。除憩室外 ,均经手术和 /或常规结肠镜 (conventionalcolonoscopy ,CC)检查活检病理证实。在工作站应用Navigator软件获取CTVC图像。结果 CTVC能够显示 >4.0mm的癌结节和溃疡、>3.4mm的息肉 ,癌肿分型判断正确率为 92 .2 % ;结合原始横轴面、2D多平面重建 (multiplanarreformation ,MPR)、表面遮盖显示(shadedsurfacedisplay ,SSD)和透明显示 (Raysum)图像 ,有助于病变定位、定性。结论 CTVC是一种有效的检查方法 ,可为结、直肠病变的检查开创新的途径。
Objective To evaluate CT virtual colonoscopy (CTVC) in the clinical practice.Materials and Methods Spiral CT volumetric scanning was performed in 120 patients with colonic diseases, which included rectal carcinoma (n=64), colorectal polyps (n=26), ulcerative colitis (n=3), chronic colitis (n=3), lipoma (n=2), non Hodgkin malignant lymphoma (n=1), colonic involvement from splenic non Hodgkin malignant lymphoma (n=1), carcinoid tumor (n=1), endometriosis (n=1) and diverticulum (n=7). The diagnoses, except the diverticulum, were proved with surgery and/or conventional colonoscopic biopsy. CTVC images were obtained on the workstation by using navigator software. Results The type of the carcinoma could be correctly judged on CTVC in 92.9% of cases. The carcinomatous nodules and ulcers over 4.0 mm and the polyps over 3.4 mm in diameter could be demonstrated on CTVC. Combined with the original axial section, 2D MPR, SSD and Raysum images, precise localizing and qualitative diagnosis could be made.Conclusion CTVC is an effective and non invasive technique, which provides a new mean in the examination of colorectal lesions.
出处
《临床放射学杂志》
CSCD
北大核心
2001年第12期924-927,共4页
Journal of Clinical Radiology
