Current Cardiology Reports

, Volume 7, Issue 1, pp 52–58

Evaluation of intracardiac shunts with cardiac magnetic resonance

Authors

  • Patrick M. Colletti
    • LAC+USC Imaging Science CenterUniversity of Southern California Keck School of Medicine
Article

DOI: 10.1007/s11886-005-0011-9

Cite this article as:
Colletti, P.M. Curr Cardiol Rep (2005) 7: 52. doi:10.1007/s11886-005-0011-9

Abstract

Intracardiac shunts including atrial septal defect, ventricular septal defect, endocardial cushion defects, and surgical baffles may be identified, localized, and quantified using cardiac MRI methods. Both dark-blood and bright-blood techniques are helpful to identify anatomy. Contrast enhancement is especially useful for identifying associated vascular anomalies. Dynamic first-pass contrast agent signal-time studies may demonstrate rapid recirculation and shunting. Volumetric and phase contrast cine methods are useful to quantify flow. Pulmonary to systemic (Qp/Qs) flow ratios may be calculated noninvasively by comparing the pulmonary artery flow to the aortic flow measurement.

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© Current Science Inc 2005