Assessment of DOI resolution in a fully mounted PEM scanner

N Matela,Claudio Santos Ferreira,M V Martins,R Bugalho,J A Neves,Catarina Ortigao,N Oliveira,J A Varela,Paulo Almeida

Nuclear Science Symposium and Medical Imaging Conference（2011）

引用 7|浏览22

暂无评分

摘要

The ClearPEM scanner is a dedicated system to perform breast imaging with the ability of measuring DOI, allowing an image spatial resolution close to 1.5 mm. The DOI is measured by calculating the amplitude asymmetry between the signals produced by two APD, one in the top and other in the bottom of the crystal. The DOI resolution measured in laboratory tests is 2.0 mm. In this paper we present a method to periodically confirm this value with the scanner fully mounted. The DOI resolution obtained with this method was 2.8 mm, which is consistent with the resolution measured during the laboratory tests.

查看译文

关键词

avalanche photodiodes,biomedical equipment,mammography,positron emission tomography,solid scintillation detectors,apd,clearpem scanner,doi resolution assessment,breast imaging,dedicated system,depth of interaction,fully mounted pem scanner,image spatial resolution,signal amplitude asymmetry,spatial resolution

AI 理解论文

溯源树

样例

生成溯源树，研究论文发展脉络

Chat Paper

正在生成论文摘要