Velocity-encoded cine MR imaging is a valuable tool for quantitative assessment of flow dynamics, preoperative planning, and postoperative monitoring in patients with congenital heart disease.
What are the clinical applications and pitfalls of velocity-encoded cine MR imaging in patients with congenital heart disease?
VEC MR imaging provides valuable quantitative flow dynamics assessment for preoperative planning and postoperative monitoring in congenital heart disease.
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.
Varaprasathan et al. (2002) conducted a review in Congenital heart disease. Velocity-encoded cine (VEC) MR imaging was evaluated. Velocity-encoded cine MR imaging is a valuable tool for quantitative assessment of flow dynamics, preoperative planning, and postoperative monitoring in patients with congenital heart disease.
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