摘要
Abstract
Objective To evaluate the significance of plain and dual-phasic enhanced MDCT in the diagnosis of preoperative T staging of gastric carcinoma. Methods MDCT examinations were performed on 57 patients with histopathologically confirmed gastric carcinoma. The scan protocol included plain scanning, arterial phase and portal phase scanning. The MPR image was reconstructed. Results The MDCT had 78. 94 % of accuracy for diagnosing T stage, and 94. 74%, 94. 74%, 84. 21% and 87. 72% accuracy for T_1, T_2, T_3, and T_4, respectively. The sensitivity of the diagnosis were 25. 00%, 80. 00%, 78. 26% and 88. 00% for T_1, T_2, T_3, and T_4 .respectively. The specificity of the diagnosis were 100% , 96.15% , 88. 24% and 87. 50% for T_1, T_2, T_3, and T_4, respectively. Conclusion The plain scan and dual phase enhanced scans of MDCT, especially the thin slice and MPR reconstruction with proper windows technique, have clinical significance for diagnosing T staging of gastric carcinoma.关键词
胃肿瘤/多排螺旋CT/肿瘤分期Key words
Stomach neoplasm /Mutidetector computed tomography /Neoplasms staging分类
医药卫生
