钡灌肠和CT及MRI对结直肠癌诊断的比较影像学研究

目的比较钡灌肠(BE)、计算机X线断层扫描(CT)和磁共振成像(MRI)对结直肠癌检查的临床价值。方法对64例经临床拟诊结直肠癌患者的影像学资料进行对比分析。结果64例患者中39例行BE检查,31例行螺旋CT检查,42例行MRI检查。其中经手术病理证实的结直肠癌54例。BE、CT和MRI对结直肠癌检查的敏感度分别为96.9%、96.2%和97.1%;准确度分别为92.3%、83.9%和90.5%。CT和MRI对结直肠癌T分期诊断的准确度分别为73.1%和82.9%。结论BE是结直肠癌的基本影像学检查方法,CT和MRI是BE必要的补充检查手段,BE加MRI是诊断结直肠癌的优选组合检查方法。

Comparative study of barium enema, computed tomography and magnetic resonance imaging in preoperative diagnosis of colorectal carcinoma

Objective To compare the diagnostic value of barium enema(BE),computed tomography(CT) and magnetic resonance imaging(MRI) in primary colorectal carcinoma. Methods A total of 64 patients with suspected colorectal carcinoma received BE (n=39),spiral CT(n=31) and MRI(n=42). The detective results were compared with the surgical results. Results Among 64 patients,54 cases were pathologically proved as colorectal carcinoma. The diagnostic sensitivity of BE,CT and MRI was 96.9%,96.2%and 97.1%,and the overall accuracy was 92.3%,83.9%and 90.5%,respectively. The overall accuracy of CT and MRI for tumor T staging was 73.1%and 82.9%respectively. Conclusions BE can be considered as a primary approach for diagnosing colorectal carcinoma,CT and MRI be necessory diagnostic approaches. Combined BE with MRI is the best choice for diagnosing of colorectal carcinoma.