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目的 探讨新型全数字式X线血管造影仪INNOVA 2 0 0 0对老年冠心病介入操作的影响。方法 根据病变血管和部位、病变特征及病人基本情况进行病例配对 ,分为数字造影仪和传统造影仪两组 ,比较两组的操作成功率、主要并发症率、病死率、手术时间和曝光时间、支架电影定位次数、同样条件屏蔽前后X线散射程度、体重电压指数、透视体位改变速度、影像清晰度。结果 在 1年内完成的 130例老年经皮冠状动脉介入 (PCI)病人中 ,选出符合前降支近端病变配对条件者 2 8例 ,符合右冠近端病变配对条件者 32例。数字造影仪组和传统造影仪组在一般临床资料和冠脉病变特征方面均具有可比性 (P >0 .0 5 )。数字造影仪组在操作成功率、主要并发症率、病死率、手术时间、X线曝光时间、支架电影定位次数、术者位置屏蔽前后X线散射程度、体重电压指数、透视体位改变速度和影像质量等观察指标方面明显优于传统造影仪 (P <0 .0 5 )。采用数字造影仪获得的图像在亮度、对比度、解剖层次、器械可视性等方面均优于传统造影仪。结论 数字化血管造影仪在投照体位变换速率方面与传统造影仪基本相同 ,影像清晰度和分辨率明显提高 ,散射量明显降低 ,有利于提高老年PCI操作的效率和安全性 ,减轻病人和术者的辐射损伤。
Objective To investigate the effect of a new all-digital X-ray angiography instrument INNOVA 2000 on interventional therapy in elderly patients with coronary heart disease. Methods According to the pathological changes of blood vessels and parts, the characteristics of the lesions and the basic situation of the patients, the patients were divided into two groups: digital contrast and traditional contrast. The success rates, the main complication rates, the mortality rate, the operation time and the exposure time , Scaffold positioning number of films, the same conditions before and after screening X-ray scattering, body mass index of voltage, fluoroscopy position change speed, image clarity. Results A total of 28 elderly patients with percutaneous coronary intervention (PCI) were enrolled in one year. Twenty-eight patients were selected according to the matching condition of proximal anterior descending artery disease and 32 patients were matched to the right coronary proximal disease. Digital radiography and conventional radiography instrument group in the general clinical data and characteristics of coronary lesions were comparable (P> 0.05). Digital radiography group in the operation success rate, the main complication rate, mortality, operation time, X-ray exposure time, the number of stent film positioning, the position of the operator before and after screening X-ray scattering, weight voltage index, fluoroscopy speed and image changes Quality and other indicators of observation was significantly better than the traditional contrast (P <0. 05). Images obtained with digital contrast are superior to conventional contrast in terms of brightness, contrast, anatomy, and device visibility. Conclusions Digital angiography instrument is basically the same as the conventional contrast instrument in mapping the body position conversion rate, the image sharpness and resolution are obviously improved, the amount of scattering is obviously reduced, which is beneficial to improve the efficiency and safety of elderly PCI operation and relieve the patients and surgeons Radiation damage.