冠状动脉的位移和速度：心脏及呼吸运动
Displacement and velocity of the coronary arteries: cardiac and respiratory motion.
作者信息
Shechter Guy, Resar Jon R, McVeigh Elliot R
出版信息
IEEE Trans Med Imaging. 2006 Mar;25(3):369-75. doi: 10.1109/TMI.2005.862752.
Abstract
This paper presents measurements of three-dimensional (3-D) displacements and velocities of the coronary arteries due to the myocardial beating motion and due to breathing. Data were acquired by reconstructing the coronary arteries and their motion from biplane angiograms in 10 patients. A parametric motion model was used to separate the cardiac and breathing motion fields. The arteries move consistently toward the left, inferior, and anterior during a cardiac contraction. The displacement and velocity of the right coronary artery during a cardiac contraction was larger than measured for the left coronary tree. Cardiac motion dominates the respiratory motion of the coronary arteries during spontaneous breathing. On inspiration, the arteries move caudally, but the motion in the left-right and anterior-posterior axes was variable. Spatial variation in respiratory displacement and velocity of the coronary arteries indicates that the breathing motion of the heart is more complex than a 3-D translation.
摘要
本文介绍了由于心肌跳动和呼吸导致的冠状动脉三维（3-D）位移和速度的测量结果。通过对10例患者的双平面血管造影重建冠状动脉及其运动来获取数据。使用参数运动模型来分离心脏和呼吸运动场。在心脏收缩期间，动脉一致地向左、下和前方移动。心脏收缩期间右冠状动脉的位移和速度大于左冠状动脉树的测量值。在自主呼吸过程中，心脏运动主导着冠状动脉的呼吸运动。吸气时，动脉向尾侧移动，但左右和前后轴上的运动是可变的。冠状动脉呼吸位移和速度的空间变化表明，心脏的呼吸运动比三维平移更复杂。
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本文引用的文献
1
Prospective motion correction of X-ray images for coronary interventions.用于冠状动脉介入治疗的X射线图像的前瞻性运动校正。
IEEE Trans Med Imaging. 2005 Apr;24(4):441-50. doi: 10.1109/tmi.2004.839679.
2
Rest period duration of the coronary arteries: implications for magnetic resonance coronary angiography.冠状动脉的静息期持续时间：对磁共振冠状动脉血管造影的影响。
Med Phys. 2005 Jan;32(1):255-62. doi: 10.1118/1.1836291.
3
Respiratory motion of the heart from free breathing coronary angiograms.自由呼吸冠状动脉造影中的心呼吸运动。
IEEE Trans Med Imaging. 2004 Aug;23(8):1046-56. doi: 10.1109/TMI.2004.828676.
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A dynamic approach to identifying desired physiological phases for cardiac imaging using multislice spiral CT.一种使用多层螺旋CT识别心脏成像所需生理阶段的动态方法。
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Three-dimensional motion tracking of coronary arteries in biplane cineangiograms.双平面电影血管造影术中冠状动脉的三维运动跟踪
IEEE Trans Med Imaging. 2003 Apr;22(4):493-503. doi: 10.1109/TMI.2003.809090.
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A study of the motion and deformation of the heart due to respiration.一项关于呼吸引起的心脏运动和变形的研究。
IEEE Trans Med Imaging. 2002 Sep;21(9):1142-50. doi: 10.1109/TMI.2002.804427.
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