NDLI: Assessment of dedicated brain PET designs with different geometries

Content Provider	IEEE Xplore Digital Library
Author	Shi, H. Du, D. Xu, J. Peng, Q.
Copyright Year	2013
Description	Author affiliation: Sch. of Mech. Sci. & Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China (Xu, J.) \|\| Dept. of Mech. Eng., Tsinghua Univ., Beijing, China (Shi, H.; Du, D.) \|\| Dept. of Radiotracer Dev. & Imaging Technol., Lawrence Berkeley Nat. Lab., Berkeley, CA, USA (Peng, Q.)
Abstract	We compared the geometrical efficiencies and parallax errors of three different conceptual dedicated brain PETs, including a spherical cap design (R=18cm), a dodecahedron design (inscribed sphere radius = 15cm) and a cylindrical design (30cm in height and 30 cm in diameter) with their conventional whole body counterpart (a cylinder 20cm in height and 76 cm in diameter) by calculating the Solid Angle Fractions (SAF) and Average Gamma-ray Incident Angles (AGIA). The results show that spherical cap and dodecahedron have an identical SAF that is 58.4% higher than that of 30cm diameter cylinder, and 5.44 times higher than that of 76cm diameter cylinder. The 76cm diameter cylinder has the lowest AGIA. The spherical cap has an AGIA 16.2% lower than that of the 30cm cylinder, and 33.5% lower than that of dodecahedron in brain phantom simulation. In a region around the geometric center, the dodecahedron and the 30cm cylinder have similar parallax error. We conclude that the spherical cap is a better geometry for brain imaging compared to 30cm or 76cm cylinder. The dodecahedral PET consisting of 11 flat detector faces and an opening face, is a reasonable approximation of the spherical cap PET.
Starting Page	1
Ending Page	4
File Size	393581
Page Count	4
File Format	PDF
e-ISBN	9781479905348
DOI	10.1109/NSSMIC.2013.6829193
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-10-27
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Positron emission tomography Solids Phantoms Detectors Geometry Brain modeling
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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