Imagerie par rayonnement gamma diffusé à haute sensibilité
Imagerie par rayonnement gamma diffusé à haute sensibilité
复制标题
高级感性的伽玛射线扩散图像
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
C. Driol
中科院分区：
文献类型：
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作者：
C. Driol
本论文描述了基于对被调查物体发出的辐射进行高灵敏度检测的新型三维成像原理的理论基础。它代表了成像科学的突破，因为它使用的不是初级辐射，而是物体主体的康普顿散射辐射，随后由不带机械准直的非移动伽马相机记录。图像形成通过新的积分变换进行建模，首先针对发射成像，考虑到在医学成像中的应用，其次针对透射成像，并可能在工业无损检测中应用，最后针对结合了先前两种模态的新双模态成像系统。通过蒙特卡罗模拟对正演模型的验证和反演问题的代数重建清楚地证明了这种新成像原理的可行性。
This thesis describes the theoretical foundations of a new three-dimensional imaging principle based on high sensitivity detection of radiation emerging from an object under investigation. It represents a breakthrough in imaging science, as it makes use, not of primary radiation, but of Compton scattered radiation by the bulk of an object, which is subsequently registered by a non-moving gamma camera without mechanical collimation. Image formation is modelled by new integral transforms, first for emission imaging, in view of applications in medical imaging, next for transmission imaging, with possible applications in industrial non-destructive testing and finally for new bimodal imaging systems which combine the two previous modalities. Validation by Monte-Carlo simulations of the forward models and algebraic reconstructions of the inverse problems have clearly demonstrated the feasibility of this new imaging principle.
使用散射光子补偿改进 SPECT 量化。
DOI：
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发表时间：
1984
期刊：
Journal of nuclear medicine : official publication, Society of Nuclear Medicine
影响因子：
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作者：
Jaszczak,RJ;Greer,KL;FloydJr,CE;Harris,CC;Coleman,RE
通讯作者：
Coleman,RE