Title :
An observer model evaluation of simultaneous reconstruction and motion estimation for emission tomography
Author :
Cao, Zixiong ; Gilland, David R. ; Mair, Bernard A. ; Tsui, Benjamin M W
Author_Institution :
Dept. of Biomedical Eng., Florida Univ., FL, USA
Abstract :
This paper describes an evaluation of a simultaneous reconstruction and motion estimation algorithm for gated myocardial emission tomography using a multi-image, channelized Hotelling observer model. The test data for the evaluation were obtained using the NURBS-based cardiac torso (NCAT) 4D phantom with simulated myocardial defect. Results indicate that the simultaneous algorithm produces images with significantly improved myocardial defect detectability, relative to the best of an alternative reconstruction method.
Keywords :
cardiology; emission tomography; image motion analysis; image reconstruction; medical image processing; muscle; phantoms; NURBS-based cardiac torso 4D phantom; gated myocardial emission tomography; image reconstruction; motion estimation; multi-image channelized Hotelling observer model; myocardial defect detectability; Biomedical engineering; Hafnium; Humans; Image reconstruction; Mathematical model; Motion analysis; Motion estimation; Myocardium; Reconstruction algorithms; Tomography;
Conference_Titel :
Biomedical Imaging: Nano to Macro, 2004. IEEE International Symposium on
Print_ISBN :
0-7803-8388-5
DOI :
10.1109/ISBI.2004.1398694
