论文部分内容阅读
目的 :评价术前应用正电子发射型断层扫描 (PET)、CT对胃癌的诊断价值。方法 :2 8例胃癌患者术前行PET全身显像 ,2 3例行CT检查 ,将以上结果和病理分期对照。结果 :PET和CT对胃癌局部病灶的显示率分别为 92 .9%和 82 .6 % ,PET对淋巴结的检测准确性 (87.5 % )高于CT(6 1.9% )。PET检测出 8例远处转移患者 ,CT漏诊 3例。结论 :PET相对于CT能更准确检测原发和复发胃癌淋巴结及远处转移灶 ,对胃癌的临床诊断有较高的应用价值。
Objective: To evaluate the value of preoperative application of positron emission tomography (PET) and CT in the diagnosis of gastric cancer. Methods: Twenty-eight patients with gastric cancer underwent preoperative PET whole body imaging and 23 patients underwent CT examination. The above results were compared with the pathological stage. Results: The PET and CT showed 92.9% and 82.6% of the local lesions in gastric cancer, respectively. The accuracy of PET in detecting lymph nodes (87.5%) was higher than that of CT (6 1.9%). PET detected 8 cases of distant metastasis, CT missed diagnosis in 3 cases. Conclusion: Compared with CT, PET can detect lymph node and distant metastasis of primary and recurrent gastric cancer more accurately, which has higher value in clinical diagnosis of gastric cancer.