Performance measurement of a new high-resolution detector system for I-131 thyroid studies

Author

Bussmann, N. ; Engels, R. ; Fuss, L. ; Kemmerling, G. ; Reinartz, R. ; Langen, K.-J. ; Schelten, J. ; Zeimons, K.

Author_Institution

Kretztecnik GmbH, Marl, Germany

Volume

48

Issue

3

fYear

2001

fDate

6/1/2001 12:00:00 AM

Firstpage

625

Lastpage

627

Abstract

A two-dimensional detector system for high-resolution thyroid I-131 scintigraphy was developed. It has a sensitive area of 4×4 cm² and consists of a lead collimator and an array of 10×10 BGO crystals combined with a position-sensitive photomultiplier. The spatial resolution and the sensitivity of the detector have been measured and compared to two commercially available gamma cameras. The full-width half-maximum for the new system is 3.8 mm. Furthermore, first patient measurements have been carried out

Keywords

biological organs; biomedical equipment; bismuth compounds; gamma-ray detection; image resolution; photomultipliers; radioisotope imaging; BGO crystals; Bi₄Ge₃O₁₂; I; commercially available gamma cameras; detector sensitivity; full-width half-maximum; high-resolution thyroid I-131 scintigraphy; medical diagnostic imaging; nuclear medicine; spatial resolution; two-dimensional detector system; Cameras; Collimators; Gamma ray detection; Gamma ray detectors; Head; Measurement; Photomultipliers; Photonic crystals; Radiation detectors; Spatial resolution;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.940136

Filename

940136