Determination of scintillation pixel location through deep learning using a two-layer DOI detector

IF 0.8 4区 物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY
Byungdu Jo, Seung-Jae Lee
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引用次数: 0

Abstract

Small gantries and long, thin scintillation pixels are used in preclinical positron emission tomography, resulting in parallax errors outside the system’s field of view. To solve this problem, a detector for measuring the depth of interaction (DOI) was developed. In addition, conduct of research on methods for DOI measurement through deep learning is underway. In this study, we designed a detector for measurement of DOI, consisting of two layers of scintillation pixel arrays and developed a method for specifying 3-dimensional (3D) position through deep learning. DETECT2000 simulation was performed to assess the 3D-positioning accuracy of the designed detector. Data acquired through DETECT2000 simulation wereused for learning a deep learning model, and assessment of location specification accuracy was performed using data generated at a new location and the deep learning model. According to the result, the 3D-position measurement accuracy was calculated as 94.48% on average.

Abstract Image

Abstract Image

利用双层 DOI 检测器,通过深度学习确定闪烁像素位置
临床前正电子发射断层扫描使用的是小型龙门架和细长的闪烁像素,导致系统视场外的视差误差。为了解决这个问题,我们开发了一种用于测量相互作用深度(DOI)的探测器。此外,通过深度学习测量 DOI 的方法研究也在进行中。在这项研究中,我们设计了一种由两层闪烁像素阵列组成的 DOI 测量探测器,并开发了一种通过深度学习指定三维(3D)位置的方法。为了评估所设计探测器的三维定位精度,我们进行了 DETECT2000 仿真。通过 DETECT2000 仿真获取的数据被用于学习深度学习模型,并利用在新位置生成的数据和深度学习模型对位置指定精度进行了评估。结果显示,三维位置测量精度平均为 94.48%。
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来源期刊
Journal of the Korean Physical Society
Journal of the Korean Physical Society PHYSICS, MULTIDISCIPLINARY-
CiteScore
1.20
自引率
16.70%
发文量
276
审稿时长
5.5 months
期刊介绍: The Journal of the Korean Physical Society (JKPS) covers all fields of physics spanning from statistical physics and condensed matter physics to particle physics. The manuscript to be published in JKPS is required to hold the originality, significance, and recent completeness. The journal is composed of Full paper, Letters, and Brief sections. In addition, featured articles with outstanding results are selected by the Editorial board and introduced in the online version. For emphasis on aspect of international journal, several world-distinguished researchers join the Editorial board. High quality of papers may be express-published when it is recommended or requested.
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