Investigation of the possibility of improving spatial resolution in SPECT with the combination of LaBr3:Ce-based detector and 3D-OSEM reconstruction algorithms

被引：0
|
作者：
Alzimami, Khalid S. [1 ,2 ]
Sassi, Salem A. [3 ]
Alfuraih, Abdulrahman A. [1 ]
Livieratos, Lefteris [4 ,5 ]
Spyrou, Nicholas M. [1 ,2 ]
机构：
[1] King Saud Univ, Dept Radiol Sci, Riyadh 11432, Saudi Arabia
[2] Univ Surrey, Dept Phys, Surrey GU2 7XH, England
[3] Royal Marsden NHS Fdn Trust, Joint Dept Phys, Sutton SM2 5PT, Surrey, England
[4] Guys Hosp, Dept Nucl Med, London SE1 9RT, England
[5] St Thomas Hosp, Dept Nucl Med, London SE1 9RT, England
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2011年 / 633卷
关键词：
Image reconstruction; 3D-OSEM; LaBr3:Ce; Nal(Tl); GATE Monte Carlo simulation; ITERATIVE RECONSTRUCTION; GATE; VALIDATION;
D O I：
10.1016/j.nima.2010.06.191
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
This study investigates the potential of improving spatial resolution in SPECT imaging using a combination of LaBr3:Ce detectors and 3D-OSEM image reconstruction algorithms. Potential spatial resolution improvement was assessed intrinsically and extrinsically using GATE Monte Carlo simulation. Significantly improved MTF of LaBr3:Ce detectors suggests better resolution performance at all spatial frequencies. In comparison to conventional Nal(Tl) scintillators, a combination of the LaBr3:Ce crystal and 3D-OSEM incorporating resolution recovery could significantly improve the extrinsic spatial resolution of SPECT images. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：S289 / S291
页数：3
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