Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8177576 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2014 | 6 Pages |
Abstract
To evaluate the effects of the flat panel dimension on the overall performance qualitatively and quantitatively, the performance of two dual-head Positron Emission Mammography (PEM) cameras with different configurations, the 3Ã3 modules system and the 1Ã3 modules system, has been compared, using Monte Carlo simulation based on the Geant4 Application for Tomographic Emission (GATE) open source software. Besides traditional evaluation methods, imaging capability in terms of spatial resolution and lesion detectability have been integrated into the evaluation. Compared with the 3Ã3 modules system, the 1Ã3 modules system produces higher spatial resolution along the direction of the 1-module side but lower resolution along the other direction. No significant difference in small and weak lesion visualization has been noted between two systems. In addition, the slight disadvantage in semi-quantification of the 1Ã3 modules system can be further compensated by other methods such as increasing the imaging time while still in a practically acceptable range.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
Mengdie Wang, Guangshu Hu, Hui Zhang,