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目的探讨18F-FDG PET/CT显像在胃癌病情评估中的作用。方法经胃镜和组织病理学证实的51例胃癌患者进行18F-FDG PET/CT扫描,获得肿瘤分型、分期、转移等情况,并与手术探查、术后病理检查进行对照。结果 51例胃癌患者中,PET图像检测出原发性胃癌43例,灵敏度84.32%(43/51);18F-FDG PET/CT图像检测出全部患者,灵敏度100.00%(51/51);PET/CT显像对胃癌局部淋巴结转移的灵敏度为94.29%(33/35);18F-FDG PET/CT显像对胃癌远处组织或器官转移的灵敏度为86.67%(13/15)。结论 18F-FDG PET/CT显像对原发性胃癌及局部淋巴结和远处组织器官转移的检出是一种灵敏的方法,对胃癌的术前分期具有一定参考意义。
Objective To investigate the role of 18F-FDG PET / CT in the evaluation of gastric cancer. Methods Totally 51 cases of gastric cancer confirmed by endoscopy and histopathology were examined by 18F-FDG PET / CT, and the tumor types, stages and metastases were obtained. The results were compared with the surgical exploration and postoperative pathological examination. Results Among the 51 patients with gastric cancer, 43 cases of primary gastric cancer were detected by PET images, with a sensitivity of 84.32% (43/51). All patients were detected by 18F-FDG PET / CT with a sensitivity of 100.00% (51/51) The sensitivity of CT imaging in detecting local lymph node metastasis of gastric cancer was 94.29% (33/35). The sensitivity of 18F-FDG PET / CT imaging in distant metastasis of gastric cancer was 86.67% (13/15). Conclusion 18F-FDG PET / CT imaging is a sensitive method for the detection of primary gastric cancer and local lymph node and distant metastasis of tissues and organs. It has certain reference value for preoperative staging of gastric cancer.