Quantification of flow dynamics in congenital heart disease: Applications of velocity-encoded cine MR imaging

Gita A. Varaprasathan, Philip A. Araoz, Charles B. Higgins, Gautham P. Ready

Research output: Contribution to journalArticlepeer-review

70 Scopus citations

Abstract

Velocity-encoded cine (VEC) magnetic resonance (MR) imaging is a valuable technique for quantitative assessment of flow dynamics in congenital heart disease (CHD). VEC MR imaging has a variety of clinical applications, including the measurement of collateral flow and pressure gradients in coarctation of the aorta, differentiation of blood flow in the left and right pulmonary arteries, quantification of shunts, and evaluation of valvular regurgitation and stenosis. After surgical repair of CHD, VEC MR imaging can be used to monitor conduit blood flow, stenosis, and flow dynamics. There are some pitfalls that can occur in VEC MR imaging. These include potential underestimation of velocity and flow, aliasing, inadequate depiction of very small vessels, and possible errors in pressure gradient measurements. Nevertheless, VEC MR imaging is a valuable tool for preoperative planning and postoperative monitoring in patients with CHD.

Original languageEnglish (US)
Pages (from-to)895-905
Number of pages11
JournalRadiographics
Volume22
Issue number4
DOIs
StatePublished - 2002

Keywords

  • Aorta, MR, 562.12144
  • Aorta, flow dynamics
  • Aorta, stenosis or obstruction, 562.1511
  • Heart, MR, 51.12144
  • Heart, diseases, 51.1424, 51.191, 53.172
  • Heart, flow dynamics
  • Magnetic resonance (MR), cine study, 50.12144

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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