Monte Carlo Optimization of Crystal Configuration for Pixelated Molecular SPECT Scanners

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• 作者：Hojjat Mahani^a ; ^b ; Gholamreza Raisali^a ; Alireza Kamali-Asl^c ; Mohammad Reza Ay^b ; ^d ; ^{mohammadreza_ay@sina.tums.ac.ir}
• 关键词：Monte Carlo ; GATE ; Molecular SPECT ; Optimization ; Pixelated crystal
• 刊名：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：844
• 期：Complete
• 页码：1-6
• 全文大小：560 K
• 卷排序：844

文摘

We optimized pixelated crystal configuration for the purpose of molecular SPECT imaging. The weighted-sum and the figure-of-merit methods were used in order to search for an optimal crystal configuration. The higher the pixel size, the poorer the resolution and simultaneously the higher the sensitivity and the PDA. The higher the pixel gap, the poorer the resolution and the sensitivity, and the greater the PDA. Based on relative importance of resolution, sensitivity, and PDA, the optimal configuration was investigated.