Feasibility of full-field single photon emission mammotomography using a novel CZT detector

Author

Tornai, Martin P. ; Archer, Caryl N. ; Bowsher, James E. ; Patt, Bradley E. ; Iwanczyk, Jan S. ; MacDonald, Lawrence R. ; Parnham, Kevin

Volume

3

fYear

2002

fDate

10-16 Nov. 2002

Abstract

A new 16×20cm² detector using quantized cadmium-zinc-telluride (CZT) has been developed for scintimammography, and is here incorporated into the application specific emission tomography (ASET) system for dedicated emission mammotomography. The ASET prototype utilizes a compact 12.5×12.5cm² FOV, quantized NaI(Tl) crystal based gamma camera (LumaGEM™) for dedicated breast imaging on a hemispherical gantry system. To avoid truncation of large breasts in reconstructed images, a shifted camera acquisition technique was therefore used with full azimuthal rotation about the pendant breast; while each projection was intentionally truncated, acquisition and reconstruction of conjugate views eliminated any truncation in the iteratively reconstructed images.

Keywords

gamma-ray detection; image reconstruction; mammography; medical image processing; positron emission tomography; semiconductor counters; solid scintillation detectors; 16 cm; 20 cm; ASET; CdZnTe; NaI:Tl; application specific emission tomography; breast imaging; full-field single photon emission mammotomography; iteratively reconstructed images; quantized NaI(Tl) crystal based gamma camera; scintimammography; Biomedical imaging; Biomedical measurements; Breast; Cameras; Detectors; Energy resolution; Image reconstruction; Medical diagnostic imaging; Radiology; Single photon emission computed tomography;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2002 IEEE

Print_ISBN

0-7803-7636-6

Type

conf

DOI

10.1109/NSSMIC.2002.1239694

Filename

1239694