Optimal Reconstruction Phase For Demonstration of Maximal Coronary Sinus Area by Cardiac Computed Tomography
Heart, Lung and Circulation(2008)
Abstract
Background: The cardiac venous system can be visualised with computed tomography (CT) prior to left ventricular lead placement for cardiac resynchronisation therapy. The choice of reconstruction phase for CT coronary artery imaging relies on selecting the period of minimum cardiac motion, typically at end-diastole (70% of the cardiac cycle). The use of dose modulation, while limiting radiation dose, requires the prediction of the ideal reconstruction phase prior to scanning. However the diastolic phase may not be optimal for venous imaging due to changes in venous luminal diameter during the cardiac cycle.
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Key words
maximal coronary sinus area,optimal reconstruction phase,cardiac computed tomography
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