Abstract
A right-to-left shunt is defined as a cardiac shunt that allows deoxygenated blood to flow from the right heart to the left heart. The shunt may occur at different levels, and we will schematically distinguish among intra-cardiac, para-cardiac, related great vessel and intra-pulmonary shunts. They can be related to a congenital lesion (Higgins and Ross 2006; Baert et al. 2005) or post-surgical sequelae. CT scanners recently have made great progress in the evaluation of these shunts since cardiac imaging can now accurately be performed using cardiac gating. Indeed, even if the CT scanner does not allow quantifying the shunt, it can contribute to presurgical evaluation by providing some useful information about the location of the shunt and other cardiacand vascular-associated lesions.
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Boussell, L., Douek, P., Elicker, B. (2009). Right-to-Left Shunts. In: Rémy-Jardin, M., Rémy, J. (eds) Integrated Cardiothoracic Imaging with MDCT. Medical Radiology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-72387-5_23
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DOI: https://doi.org/10.1007/978-3-540-72387-5_23
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