Journal ArticleDOI
Effect of respiration on cardiac motion determined by cineangiography. Implications concerning three-dimensional heart reconstruction using computer tomography.
TLDR
The cardiac respiratory motion indicates that gating of the respiratory cycle as well as the cardiac cycle is necessary in three-dimensional reconstruction of the heart using a large number of heart beats for recording.Abstract:
Based on 39 cineangiographies in 23 patients performed during respiration with tracing of the cardiac chambers and the diaphragm, it has been found that the heart moves significantly with respiration, approximately half as much as the diaphragm during shallow or normal respiration. The cardiac respiratory motion indicates that gating of the respiratory cycle as well as the cardiac cycle is necessary in three-dimensional reconstruction of the heart using a large number of heart beats for recording.read more
Citations
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Journal ArticleDOI
Respiratory motion of the heart: kinematics and the implications for the spatial resolution in coronary imaging
TL;DR: It was found that during tidal breathing the movement of the heart due to respiration is dominated by superior‐inferior (SI) motion, which is linearly related to the SI motion of the diaphragm.
Journal ArticleDOI
Respiratory motion of the heart from free breathing coronary angiograms
TL;DR: A method for measuring the natural tidal respiratory motion of the heart from free breathing coronary angiograms is presented and a cardiac respiratory parametric model is formulated and used to decompose the deformation field into cardiac and respiratory components.
Journal ArticleDOI
Displacement and velocity of the coronary arteries: cardiac and respiratory motion
TL;DR: Measurements of three-dimensional displacements and velocities of the coronary arteries due to the myocardial beating motion and due to breathing indicate that the breathing motion of the heart is more complex than a 3-D translation.
Journal ArticleDOI
Towards Imaging the Beating Heart Usefully with a Conventional CT Scanner
Graeme C. Mc Kinnon,R.H.T. Bates +1 more
TL;DR: It is shown how this estimate can be used to alter the measured projections in such a way that the image of the heart region can be significantly improved.
Journal ArticleDOI
Respiratory blur in 3D coronary MR imaging.
Yi Wang,Thomas M. Grist,Frank R. Korosec,Paul S. Christy,Marcus T. Alley,Jason A. Polzin,Charles A. Mistretta +6 more
TL;DR: 3D MR imaging of coronary arteries has the potential to provide both high resolution and high signal‐to‐noise ratio, but it is very susceptible to respiratory artifacts, especially respiratory blurring.
References
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Three-dimensional visualization of the intact thorax and contents:A technique for cross-sectional reconstruction from multiplanar X-ray views
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Computer Tomography in the Evaluation of Pulmonary Asbestosis: Preliminary Experiences with the EMI General Purpose Scanner
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