https://scholars.lib.ntu.edu.tw/handle/123456789/634240
標題: | Performance measurement of a PET insert using strip-line readout and waveform sampling data acquisition for simultaneous PET/MRI | 作者: | Kim, Heejong Hua, Yuexuan Xi, Daoming Xie, Qingguo Tsai, Hsiu Ming Chen, Hsing Tsuen Fan, Xiaobing Karczmar, Gregory Chen, Chin Tu CHENG-YING CHOU Kao, Chien Min |
公開日期: | 1-十一月-2018 | 來源出版物: | 2018 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2018 - Proceedings | 摘要: | Previously we reported the development of a PET insert for PET/MRI using strip-line signal readout and waveform sampling data acquisition for small animal imaging. Based on encouraging results obtained from the previous prototype, we have made several major upgrades for improvement. Firstly, the number of detector modules were increased from 8 to 14 to increase sensitivity and eliminate image artifacts. Each detector module consists of 8x4 LYSO arrays (3x3x10 mm3 each) and two Hamamatsu S13361-3050NE-04 MPPC arrays (4x4, 3.2 mm pitch). The detector modules are installed within a 3d-printed plastic supporting structure with 60 mm inner diameter and 115 mm outer diameter to fit inside 9.4 Tesla Bruker BioSpec 94/30 USR MR scanner. The axial field of view of the PET insert is 25.6 mm. Secondly, the SiPM signal readout multiplexing ratio is increased double in the detector module by redesigning the strip-line board;32 SiPM signals from MPPC arrays are routed to 2 strip-lines so that 16 LYSO/SiPMs send outputs to a common strip-line for readout. Experiments using the PET insert have been conducted inside and outside an MR scanner for performance evaluation. The mutual interferences of the integrated system are assessed by comparing PET and MR images of a custom-made resolution phantom. Preliminary test results are very promising and demonstrate that detector design based on strip-line signal readout is suitable for PET/MR system. We present the development of the PET insert and the preliminary experimental results. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/634240 | ISBN: | 9781538684948 | DOI: | 10.1109/NSSMIC.2018.8824679 |
顯示於: | 生物機電工程學系 |
檔案 | 描述 | 大小 | 格式 | |
---|---|---|---|---|
Performance_measurement_of_a_PET_insert_using_strip-line_readout_and_waveform_sampling_data_acquisition_for_simultaneous_PET_MRI.pdf | 710.17 kB | Adobe PDF | 檢視/開啟 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。