Title :
A polar map representation of myocardial kinetic energy from Gated SPECT
Author :
Gutierrez, M.A. ; Furuie, S.S. ; Rebelo, M.S. ; Moura, L. ; Moro, C.M.C. ; Meio, C.P. ; Meneghetti, J.C.
Author_Institution :
InCor-Sao Paulo Heart Inst., FMUSP, Sao Paulo, Brazil
fDate :
31 Oct-3 Nov 1996
Abstract :
A method for quantitative analysis of myocardial kinetic energy from Gated SPECT is proposed. The method quantifies the three dimensional (3D) left ventricle (LV) motion by a series of 3D velocity vector fields computed automatically for each voxel on the sequence of cardiac volumes. Using the velocity vector it is possible to estimate the kinetic energy for each voxel leading to a new set of 3D images. The kinetic energy polar maps or bulls-eyes are then computed from each 3D image. The proposed method has been applied to the study of normal and abnormal hearts
Keywords :
biomechanics; cardiology; image sequences; medical image processing; muscle; single photon emission computed tomography; vectors; velocity measurement; abnormal hearts; bulls-eyes; gated SPECT; kinetic energy estimation; kinetic energy polar maps; medical diagnostic imaging; myocardial kinetic energy; normal hearts; nuclear medicine; polar map representation; voxel; Engineering in Medicine and Biology Society; Equations; Heart; Image motion analysis; Image reconstruction; Kinetic energy; Myocardium; Sparse matrices; Subspace constraints; Vectors;
Conference_Titel :
Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-3811-1
DOI :
10.1109/IEMBS.1996.651915
