Title :
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
fDate :
6/1/2001 12:00:00 AM
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;
Journal_Title :
Nuclear Science, IEEE Transactions on
