摘要
目的以临床单支病变靶血管冠脉介入的角度为参照,对冠脉造影三维定量分析软件快速生成靶血管最佳投照角度进行对比研究。方法回顾性随机抽取2009-05-2009-11于我院接受冠状动脉造影并行介入治疗的患者60例,65处靶病变中血管段的影像资料,纳入62处为研究对象(有3例右冠造影因仅有单幅投照无法实现三维重建而排除)。从靶病变两个视图的投照影像中重建出三维靶血管并生成对靶血管有最少短缩或延长率的最佳投照角度。然后由两名有经验的术者以介入治疗时使用的投照角度为参照,评价三维重建生成的最佳投照角度的相对优越性,评价结果量化为从-2至2等5个评分等级。并对最佳投照角度和介入角度的短缩率及靶血管生成最佳投照度所需投照次数(等于实现三维重建的投照次数)和介入时发现较理想的投照角度的所需次数进行对比。结果成功实现62例靶血管三维重建,三维重建可实现率为100%,三维重建后自动生成的最佳投照角度评分高于实际介入使用的投照角度(最佳角度平均评分1.41±0.62,P<0.01),靶血管在最佳投照角度下的二维长度短缩率明显小于介入采用投照角度的短缩率(2.35±2.10比9.27±7.82,P<0.01),并能明显减少靶血管投照角度次数(2.08±0.27比2.50±0.65,P<0.01)。结论 Medis3D系统能准确且快速地生成用于冠状动脉介入治疗的最佳投照角度,最佳投照角度有较少的短缩率,并能减少靶血管所需的X线投照次数。
Objective To evaluate whether optimal angle suggesteded by three-dimensional quantitative coronaryangiography is better than the actual intervention angle in target vessels with single stenosis.Methods Sixty patients（65 vessel segments）who underwent coronary angiography and interventional stent-procedure were retrospectively and randomly enrolled in this study.Target vessel was three-dimensionally reconstructed from two coronary angiography views and the optimal angle with the least shorten ratio and extend ratio was automatically calculated.Two experienced interventional cardiologist evaluated the advantage and the feasibilities compared with the actual intervention angle.The evaluation results were scored into five levels ranging from-2 to 2.Shorten ratio in optimal angle was compared with that in intervention angle,projection number in optimal angle（equals projection number of successfully three dimensional reconstruction needed）with that in ideal intervention angle.Results Sixty-two target vessel were successfully three-dimensional reconstructed from 65 vessel segments,3 target vessel were excluded from the study due to the lack of a second angiographic view for 3D reconstruction.The rate of three-dimensional reconstruction can reach 100%.The scores of optimal angles were significantly higher than actual intervention angle（mean score of optimal,1.41±0.62,P 0.01）.The shorten ratios in optimal angles were significantly less than that in actual intervention angles（2.35±2.10 vs 9.27±7.82,P 0.01）,the projection number in optimal angles were significantly less than that in ideal intervention angles（2.08±0.27 vs 2.5±0.65,P 0.01）.Conclusion The optimal angle of target vessel can be accurately and quickly calculated by Medis 3D system.Compared with actual
出处
《中华高血压杂志》
CAS
CSCD
北大核心
2011年第2期153-158,共6页
Chinese Journal of Hypertension
基金
广东省医学技术研究基金项目(2008B030303019)资助
关键词
冠状动脉造影
三维重建
最佳投照角度
介入角度
Coronary angiography
Three-dimensional reconstruction
Optimal angle
Intervention angle
