Accurate image reconstruction based on standard-Gaussian-model fitted system matrix in multipinhole small animal SPECT imaging

Author

Tiantian Dai ; Tianyu Ma ; Qingyang Wei ; Hui Liu ; Xingdong Li ; Shi Wang ; Yaqiang Liu

Author_Institution

China-Japan Friendship Hosp., Beijing, China

fYear

2013

fDate

Oct. 27 2013-Nov. 2 2013

Firstpage

1

Lastpage

4

Abstract

For multi-pinhole small animal SPECT imaging, system matrix (SM) is critical for accurate reconstruction. It is typically achieved by analytical calculation, experimental measurement, or Monte-Carlo (MC) simulation. MC simulation method is relatively accurate and avoids long-time measurements. However, to achieve high resolution for small animal reconstruction, SM should be extremely huge, and would have severe noise produced when simulation time is limited.

Keywords

Gaussian processes; Monte Carlo methods; image reconstruction; image resolution; medical image processing; single photon emission computed tomography; Monte-Carlo simulation method; image reconstruction; image resolution; multipinhole small animal SPECT imaging; standard-Gaussian-model fitted system matrix; Animals; Biomedical imaging; Image reconstruction; Image resolution; Single photon emission computed tomography; Standards;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2013 IEEE

Conference_Location

Seoul

Print_ISBN

978-1-4799-0533-1

Type

conf

DOI

10.1109/NSSMIC.2013.6829240

Filename

6829240