猪模型中的三维X射线冠状动脉造影：一项可行性研究。
Three-dimensional X-ray coronary angiography in the porcine model: A feasibility study.
作者信息
Rasche Volker, Movassaghi Babak, Grass Michael, Schäfer Dirk, Kühl Harald P, Günther Rolf W, Bücker Arno
机构信息
Department Technical Systems, Philips Research Laboratories, Röntgenstr. 24-26, D-22315 Hamburg, Germany.
出版信息
Acad Radiol. 2006 May;13(5):644-51. doi: 10.1016/j.acra.2006.01.044.
RATIONALE AND OBJECTIVES
Three-dimensional high-spatial-resolution angiograms of the coronary arteries were acquired with an electrocardiogram-gated three-dimensional rotational angiography technique on an interventional X-ray system.
MATERIALS AND METHODS
During selective injection of contrast material in the left and right coronary artery, projection images were obtained in eight pigs during a continuous rotation of the X-ray gantry over an angular range of 180 degrees within 8 seconds.
RESULTS
Three-dimensional tomographic reconstruction depicted the proximal, medial, and distal sections of the main arteries as well as the main bifurcations in multiple cardiac phases in all animals.
CONCLUSIONS
For the first time, this feasibility study shows that a three-dimensional angiogram of the coronary arteries can be obtained intraprocedurally in a conventional interventional suite by means of tomographic reconstruction from projection images.
原理与目的
在介入X射线系统上，采用心电图门控三维旋转血管造影技术获取冠状动脉的三维高空间分辨率血管造影图像。
材料与方法
在向左、右冠状动脉选择性注射造影剂期间，对8只猪在X射线机架于8秒内在180度角范围内连续旋转时获取投影图像。
结果
三维断层重建显示了所有动物多个心动周期中主要动脉的近端、中段和远端以及主要分支。
结论
这项可行性研究首次表明，通过从投影图像进行断层重建，可在传统介入手术室中在手术过程中获得冠状动脉的三维血管造影图像。
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