PET image reconstruction with a system matrix containing point spread function derived from single photon incidence response
文献类型：期刊论文
| 作者 | Fan X(樊馨) ; Wang HP(王海鹏); Yuan MK(贠明凯); Sun XL(孙校丽); Cao XX(曹学香); Liu SQ(刘双全); Chai P(柴培); Li DW(李道武); Liu BD(刘宝东); Wang L(王璐)
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| 刊名 | CHINESE PHYSICS B
 |
| 出版日期 | 2015 |
| 卷号 | 24期号:1页码:18702 |
| 关键词 | point spread function single photon incidence system matrix positron emission tomography |
| 通讯作者 | 魏龙 |
| 英文摘要 | A point spread function (PSF) for the blurring component in positron emission tomography (PET) is studied. The PSF matrix is derived from the single photon incidence response function. A statistical iterative reconstruction (IR) method based on the system matrix containing the PSF is developed. More specifically, the gamma photon incidence upon a crystal array is simulated by Monte Carlo (MC) simulation, and then the single photon incidence response functions are calculated. Subsequently, the single photon incidence response functions are used to compute the coincidence blurring factor according to the physical process of PET coincidence detection. Through weighting the ordinary system matrix response by the coincidence blurring factors, the IR system matrix containing the PSF is finally established. By using this system matrix, the image is reconstructed by an ordered subset expectation maximization (OSEM) algorithm. The experimental results show that the proposed system matrix can substantially improve the image radial resolution, contrast, and noise property. Furthermore, the simulated single gamma-ray incidence response function depends only on the crystal configuration, so the method could be extended to any PET scanner with the same detector crystal configuration. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 收录类别 | SCI ; EI |
| WOS记录号 | WOS:000350701400085 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/228281]  |
| 专题 | 高能物理研究所_核技术应用研究中心 |
| 推荐引用方式 GB/T 7714 | Fan X,Wang HP,Yuan MK,et al. PET image reconstruction with a system matrix containing point spread function derived from single photon incidence response[J]. CHINESE PHYSICS B,2015,24(1):18702. |
| APA | 樊馨.,王海鹏.,贠明凯.,孙校丽.,曹学香.,...&Wei, L.(2015).PET image reconstruction with a system matrix containing point spread function derived from single photon incidence response.CHINESE PHYSICS B,24(1),18702. |
| MLA | 樊馨,et al."PET image reconstruction with a system matrix containing point spread function derived from single photon incidence response".CHINESE PHYSICS B 24.1(2015):18702. |
入库方式： OAI收割
来源：高能物理研究所
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