? 2021Echocardiography has long been the mainstay in the evaluation of cardiac and pericardial disease. As computed tomography (CT) has advanced, it has become a valuable partner in the imaging of the pericardium. The advantages of CT include a larger field of view, multiplanar reconstruction and increased discrimination between various soft tissues and fluids. CT is less operator dependent and can more easily, and reproducibly, image areas of the pericardium for which echocardiography has poor windows such as the right pericardium. The introduction of EKG gating has decreased cardiac motion artifact and can allow functional evaluation although echocardiography remains the primary source of real-time imaging of cardiac and valve motion. It is essential for the skilled cardiac imager to understand the strengths and weaknesses of CT and its role in the definition and assessment of pericardial disease.
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