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很多报道证明CT可以做胆囊结石的定性诊断。但第3代CT能否进行胆囊结石的定量诊断尚不明确。笔者将第3代CT图像上胆囊结石的数目和大小与手术发现进行比较,以确定CT在胆囊结石定量诊断上的价值。 材料与方法 从1991年1月至1995年10月在我院临床和B超确诊为胆囊结石的住院病人中随机选择70例,其中男19例,女51例,平均年龄49岁(23—69)。在术前用西门子SOMATOM.AR.C扫描机行空腹仰卧位平扫检查,扫描后根据胆囊内容物的平均CT值确定观察窗位,窗宽确定在200HU。所有的病人均在CT检查后1周内行胆囊切除术。术后剖开胆囊,取出所有的结石进行结石计数和最大结石的最大径线测量。
Many reports prove that CT can do qualitative diagnosis of gallstone. However, the third generation of CT can be quantitative diagnosis of gallstone is not yet clear. The author compares the number and size of gallbladder stones in the third generation of CT images with the findings of surgery to determine the value of CT in the quantitative diagnosis of gallstone. Materials and Methods From January 1991 to October 1995 in our hospital clinical and B-diagnosed as cholecystolithiasis inpatients randomly selected 70 cases, 19 males and 51 females, mean age 49 years (23-69 ). Before surgery with Siemens SOMATOM.AR.C scanner fasting supine position plain scan, scan the contents of the gallbladder according to the average CT value to determine the observation window position, the window width is determined at 200HU. All patients underwent cholecystectomy within 1 week after CT examination. Open the gallbladder after surgery and remove all the stones for maximum caliper measurements and stone counts.