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目的 :探讨螺旋 CT团注增强扫描胃立体成像对胃癌的诊断价值。方法 :46例胃癌患者 ,口服 70 0～ 12 0 0 ml水对比剂 ,并常规肌注 6 5 4- 2注射液 15 mg;从膈顶至脐进行螺旋 CT团注增强容积扫描 ,然后将减薄后图像传至工作站进行后处理 ,获得胃部立体图像。结果 :(1) 4 6例采用服水低张团注增强技术螺旋 CT容积扫描胃立体成像者 ,胃腔充盈及扩张度良好 ,清晰显示肿瘤大小、形态与邻近组织关系 ;(2 )胃癌立体图像表现为局限性和广泛性胃壁增厚 ,肿瘤向腔内外生长形成不规则隆起肿块。结论 :螺旋 CT胃立体成像方法可以从冠状位及任意角度观察胃形态及周围情况 ,对手术有指导意义 ,是螺旋 CT在应用方面的重要进展之一
Objective: To investigate the diagnostic value of spiral CT bolus enhanced gastroscopy on gastric cancer. Methods: Forty-six patients with gastric cancer were treated orally with 70 0-1200 ml of water contrast agent and routine intramuscular injection of 5 5 4- 2 injection of 15 mg. Spiral CT bolus injection from the top of the diaphragm to the umbilicus was used to enhance volume scanning. Post-thin image transmitted to the workstation for post-processing, three-dimensional images of the stomach. Results: (1) Forty-six patients underwent stomach volume imaging with helical CT volume scanning technique undergone augmentation of water bolus injection technique. The gastric cavity filling and the expansion were good. The relationship between tumor size and morphology and adjacent tissues was clearly shown. (2) The image showed localized and extensive gastric wall thickening, tumor growth to form irregular bulging tumor. Conclusion: The spiral CT gastroscopy method can observe the morphology and surrounding of the stomach from the coronal position and at any angle, which is of guiding significance to the operation and is one of the important progresses in the application of spiral CT