{"title":"球面正电子发射层析成像(S-PET) I -性能分析","authors":"Z.H. Cho , K.S. Hong, S.K. Hilal","doi":"10.1016/0167-5087(84)90282-5","DOIUrl":null,"url":null,"abstract":"<div><p>A spherical positron emission tomograph (S-PET) is proposed and its performance analyzed. Computer modelling and simulation studies indicate that a high resolution and high sensitivity positron emission tomograph having a spatial resolution of 2–3 mm fwhm can be realized with acceptable imaging time and sensitivity.</p><p>Multilayer S-PET having 16–24 layers is specifically analyzed and compared with its corresponding cylindrical counterpart. The result shows that the sensitivity gain of the spherical system is a factor 3 over the cylindrical system with identical true to scatter and random ratios.</p></div>","PeriodicalId":100972,"journal":{"name":"Nuclear Instruments and Methods in Physics Research","volume":"225 2","pages":"Pages 422-438"},"PeriodicalIF":0.0000,"publicationDate":"1984-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-5087(84)90282-5","citationCount":"22","resultStr":"{\"title\":\"Spherical positron emission tomograph (S-PET) I - performance analysis\",\"authors\":\"Z.H. Cho , K.S. Hong, S.K. Hilal\",\"doi\":\"10.1016/0167-5087(84)90282-5\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A spherical positron emission tomograph (S-PET) is proposed and its performance analyzed. Computer modelling and simulation studies indicate that a high resolution and high sensitivity positron emission tomograph having a spatial resolution of 2–3 mm fwhm can be realized with acceptable imaging time and sensitivity.</p><p>Multilayer S-PET having 16–24 layers is specifically analyzed and compared with its corresponding cylindrical counterpart. The result shows that the sensitivity gain of the spherical system is a factor 3 over the cylindrical system with identical true to scatter and random ratios.</p></div>\",\"PeriodicalId\":100972,\"journal\":{\"name\":\"Nuclear Instruments and Methods in Physics Research\",\"volume\":\"225 2\",\"pages\":\"Pages 422-438\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1984-08-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0167-5087(84)90282-5\",\"citationCount\":\"22\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nuclear Instruments and Methods in Physics Research\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0167508784902825\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Instruments and Methods in Physics Research","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0167508784902825","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 22
摘要
提出了一种球形正电子发射层析成像仪(S-PET)，并对其性能进行了分析。计算机模拟和仿真研究表明，在可接受的成像时间和灵敏度下，可以实现空间分辨率为2 ~ 3 mm / whm的高分辨率、高灵敏度正电子发射层析成像。对16-24层的多层S-PET进行了具体分析，并与相应的圆柱形S-PET进行了比较。结果表明，在真散射比和随机比相同的情况下，球形系统的灵敏度增益是圆柱形系统的3倍。
Spherical positron emission tomograph (S-PET) I - performance analysis
A spherical positron emission tomograph (S-PET) is proposed and its performance analyzed. Computer modelling and simulation studies indicate that a high resolution and high sensitivity positron emission tomograph having a spatial resolution of 2–3 mm fwhm can be realized with acceptable imaging time and sensitivity.
Multilayer S-PET having 16–24 layers is specifically analyzed and compared with its corresponding cylindrical counterpart. The result shows that the sensitivity gain of the spherical system is a factor 3 over the cylindrical system with identical true to scatter and random ratios.
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