- Meeting abstract
- Open Access
229 four dimensional velocity field reconstruction from PC MRI using adaptive divergence free radial basis functions
© Sundareswaran et al; licensee BioMed Central Ltd. 2008
- Published: 22 October 2008
- Radial Basis Function
- Total Cavopulmonary Connection
- Vessel Anatomy
- Blood Flow Field
- Static Free Breathing
Phase Contrast MRI has been used extensively for the reconstruction and visualization of blood flow velocity fields in pediatric applications. However, due to imaging time constraints most of the scans are limited to single plane, 3D PC MRI acquisitions. In the case of patients born with single ventricle congenital heart defects, the ability to visualize in vivo velocity fields in the total cavopulmonary connection (TCPC) in 4D (space + time) is critical for identifying how well the connection is performing clinically.
In this paper a new method for velocity field reconstruction is presented that utilizes blood flow incompressibility as a property for estimating a continuous flow field representation in the TCPC from a stack of contiguous PC MRI.
A new method for velocity field reconstruction is presented that is truly 3D and takes into account the properties of blood in addition to PC MRI velocity measurements. The new technique now allows for improved visualization of blood flow fields from sparsely acquired PC MRI data, while at the same time providing an analytical expression for the velocity field to perform higher order analysis.
This article is published under license to BioMed Central Ltd.