Analytic TOF PET reconstruction algorithm within DIRECT data partitioning framework.
Analytic TOF PET reconstruction algorithm within DIRECT data partitioning framework.
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DOI:
10.1088/0031-9155/61/9/3365
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发表时间:
2016-05-07
影响因子:
3.5
通讯作者:
Karp JS
中科院分区:
文献类型:
--
作者:
Matej S;Daube-Witherspoon ME;Karp JS
Iterative reconstruction algorithms are routinely used for clinical practice; however, analytic algorithms are relevant candidates for quantitative research studies due to their linear behavior. While iterative algorithms also benefit from the inclusion of accurate data and noise models the widespread use of TOF scanners with less sensitivity to noise and data imperfections make analytic algorithms even more promising. In our previous work we have developed a novel iterative reconstruction approach (Direct Image Reconstruction for TOF) providing convenient TOF data partitioning framework and leading to very efficient reconstructions. In this work we have expanded DIRECT to include an analytic TOF algorithm with confidence weighting incorporating models of both TOF and spatial resolution kernels. Feasibility studies using simulated and measured data demonstrate that analytic-DIRECT with appropriate resolution and regularization filters is able to provide matched bias vs. variance performance to iterative TOF reconstruction with a matched resolution model.
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影响因子:
3.5
作者:
Kao, Chien-Min
通讯作者:
Kao, Chien-Min
影响因子:
1.8
作者:
Defrise, Michel;Panin, Vladimir Y.;Casey, Michael E.
通讯作者:
Casey, Michael E.
DOI:
10.2967/jnumed.109.063016
发表时间:
2009-08
期刊:
Journal of nuclear medicine : official publication, Society of Nuclear Medicine
影响因子:
--
作者:
Kadrmas DJ;Casey ME;Conti M;Jakoby BW;Lois C;Townsend DW
通讯作者:
Townsend DW
影响因子:
3.5
作者:
Badawi, RD;Miller, MP;Marsden, PK
通讯作者:
Marsden, PK
影响因子:
3.5
作者:
Adam, LE;Karp, JS;Brix, G
通讯作者:
Brix, G