Portable gamma camera for clinical use in nuclear medicine

Author

Pani, R. ; Pellegrini, R. ; Scopinaro, F. ; De Notaristefani, F. ; Pergola, A. ; De Vincentis, G. ; Soluri, A. ; Iacopi, F. ; Grammatico, A. ; Del Guerra, A.

Author_Institution

Dept. of Exp. Med. & Pathology, Rome Univ., Italy

Volume

2

fYear

1996

Firstpage

1170

Abstract

Up today Hamamatsu R3292 is the Position Sensitive Photo Multiplier Tube (PSPMT) with the largest sensitive area (10 cm of diameter). At the same time it has the minimum size for clinical application in Nuclear Medicine. A portable gamma camera was realized, based on 5" PSPMT coupled to a scintillating array. The head has a light weight (15 kg.) spatial resolution resulted better than that of Anger Camera with good linearity response, good energy resolution and FOV coincident with intrinsic one of PSPMT. To optimize gamma camera response two different scintillating arrays were tested: YAP:Ce and CsI (Tl). Their overall size cover all photocathode active area, and crystal pixel size was 2 mm×2 mm. The detection efficiency resulted comparable to that of Anger Camera. The best result was obtained by CsI (Tl) scintillating: an intrinsic spatial resolution of 1.6 mm FWHM and a relative energy resolution of 17% FWHM. With a standard general purpose collimator a spatial resolution of about 2 mm resulted. Some preliminary results were also obtained in breast scintigraphy

Keywords

caesium compounds; cerium; diagnostic radiography; gamma-ray apparatus; gamma-ray detection; radioisotope imaging; solid scintillation detectors; thallium; yttrium compounds; CsI(Tl); CsI:Tl; YAP:Ce; YAlO3:Ce; breast scintigraphy; clinical application; clinical use; detection efficiency; energy resolution; general purpose collimator; linearity response; nuclear medicine; ortable gamma camera; portable gamma camera; scintillating array; Breast; Cameras; Cathodes; Collimators; Energy resolution; Head; Linearity; Nuclear medicine; Spatial resolution; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium, 1996. Conference Record., 1996 IEEE

ISSN

1082-3654

Print_ISBN

0-7803-3534-1

Type

conf

DOI

10.1109/NSSMIC.1996.591615

Filename

591615