Paper Info
Title
Direct reconstruction of parametric images from cardiac gated dynamic spect data
Abstract
In this work, we propose a direct reconstruction approach to determine a sequence of kinetic parametric images from a single gated acquisition, of which the goal is to provide information simultaneously for both tracer kinetics and cardiac wall motion. The parameter images of the different gates are determined jointly using maximum a posteriori (MAP) estimation from all the available image data in order to exploit the similarity among the different gates. The proposed approach is demonstrated in the context of single photon emission computed tomography (SPECT), where the challenge is great due to the under-determined nature of the problem and increased imaging noise. Our results show that use of gated temporal smoothing could effectively improve the reconstruction accuracy of kinetic parameters.
Year
DOI
Venue
2011
10.1109/ICIP.2011.6116548
ICIP
Keywords
Field
DocType
tracer kinetics,cardiology,spatio-temporal reconstruction,kinetic parametric image,maximum a posteriori estimation,cardiac wall motion,maximum likelihood estimation,5d reconstruction,gated temporal smoothing,image reconstruction,cardiac gated dynamic spect data,dynamic spect,spect,direct reconstruction,single photon emission computed tomography,map estimation,kinetic modeling,gated spect,medical image processing,logic gate,logic gates,kinetics,kinetic theory
Single-photon emission computed tomography,Iterative reconstruction,Computer vision,Logic gate,Pattern recognition,Computer science,Smoothing,Parametric statistics,Artificial intelligence,Positron emission tomography,Maximum a posteriori estimation,Gated SPECT
Conference
ISSN
ISBN
Citations 
1522-4880 E-ISBN : 978-1-4577-1302-6
978-1-4577-1302-6
0
PageRank 
References 
Authors
0.34
3
3
Name
Order
Citations
PageRank
Xiaofeng Niu187.48
Yongyi Yang21409140.74
Miles N. Wernick359561.13