Paper Info
Title
Noninvasive 3D pressure calculation from PC-MRI via non-iterative harmonics-based orthogonal projection: constant flow experiment.
Abstract
Use of phase-contrast (PC) MRI in assessment of hemodynamics has significant clinical importance. In this paper we develop a novel approach to determination of hemodynamic pressures. 3D gradients of pressure obtained from Navier-Stokes equation are expanded into a series of orthogonal basis functions, and are subsequently projected onto an integrable subspace. Before the projection step however, a scheme is devised to eliminate the discontinuity at the vessel and image boundaries. In terms of the computation time, the proposed approach significantly improves on previous iterative methods for pressure calculations. The method has been validated using computational fluid dynamic simulations and in-vitro MRI studies of stenotic flows.
Year
DOI
Venue
2013
10.1109/EMBC.2013.6610519
EMBC
Keywords
Field
DocType
orthogonal basis functions,hemodynamic pressures,image boundaries,integrable subspace,constant flow experiment,biomedical mri,noninvasive 3d pressure calculation,pc-mri,noniterative harmonics-based orthogonal projection,navier-stokes equation,phase-contrast mri,navier-stokes equations,iterative methods,medical image processing,haemodynamics,computational fluid dynamics,magnetic resonance imaging
Subspace topology,Orthographic projection,Mathematical analysis,Computer science,Iterative method,Discontinuity (linguistics),Orthogonal basis,Harmonics,Navier–Stokes equations,Computation
Conference
Volume
ISSN
Citations 
2013
1557-170X
0
PageRank 
References 
Authors
0.34
3
5
Name
Order
Citations
PageRank
Mohammadreza Negahdar1144.55
Mo Kadbi232.94
J Cha300.34
Juan R. Cebral418326.01
Amir A. Amini544363.30