Coincidence imaging with monolithic detector blocks for a human brain PET scanner

Author

Martin, I.S. ; Mendes, P.R. ; Caadas, M. ; de Acilu, P.G. ; Perez, J.M.

Author_Institution

CIEMAT - Centro de Investig. Energeticas, Madrid, Spain

fYear

2009

fDate

Oct. 24 2009-Nov. 1 2009

Firstpage

2669

Lastpage

2673

Abstract

We have evaluated the coincidence imaging performance of a monolithic detector block design for a human brain PET scanner by implementing a demonstrator based on two detector blocks. Each detector is composed of a monolithic LYSO:Ce scintillator coupled to a pair of Hamamatsu S8550-02 APD arrays with custom ASIC readout electronics. Results show that this design is suitable for our application and that images of point sources can be obtained with spatial resolutions as good as 2.4 mm FWHM for SSRB+FBP reconstruction. Based on this demonstrator, we are developing a PET insert for existing MRI equipment, to be installed in a collaborating hospital and used for clinical PET-MRI of the human brain.

Keywords

application specific integrated circuits; avalanche photodiodes; biomedical MRI; brain; image reconstruction; image resolution; medical image processing; positron emission tomography; readout electronics; solid scintillation detectors; ASIC readout electronics; Hamamatsu S8550-02 APD arrays; SSRB+FBP reconstruction; clinical PET-MRI; coincidence imaging performance; human brain PET scanner; monolithic detector block design; monolithic scintillator; point sources; spatial resolutions; Application specific integrated circuits; Collaboration; Detectors; Humans; Image reconstruction; Magnetic resonance imaging; Positron emission tomography; Readout electronics; Sensor arrays; Spatial resolution;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record (NSS/MIC), 2009 IEEE

Conference_Location

Orlando, FL

ISSN

1095-7863

Print_ISBN

978-1-4244-3961-4

Type

conf

DOI

10.1109/NSSMIC.2009.5401992

Filename

5401992