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利用放射性同位素示踪原理和单光子探测技术，在分子水平显示活体动物组织器官的功能改变、细胞代谢、分子结合与信息传递等生物学特征和生化代谢过程。
Adaptive Bayesian Iterative Transmission Reconstruction for Attenuation Correction in Myocardial Perfusion Imaging with SPECT/Slow-Rotation Low-Output CT Systems
Myocardial Perfusion Imaging SPECT/Slow-Rotation Low-Output CT Systems
2009/9/7
Objectives. SPECT/slow-rotation low-output CT systems can produce streak artifacts in filtered backprojection (FBP) attenuation maps, impacting attenuation correction (AC) in myocardial perfusion imag...
Experimental Investigation of Angular Stackgram Filtering for Noise Reduction of SPECT Projection Data: Study with Linear and Nonlinear Filters
SPECT Projection Data Nonlinear Filters
2009/9/7
We discuss data filtering prior to image reconstruction. For this kind of filtering, the radial direction of the sinogram is routinely employed. Recently, we have introduced an alternative approach to...
Application of Blind Deblurring Reconstruction Technique to SPECT Imaging
SPECT Imaging Blind Deblurring Reconstruction Technique
2009/9/7
An SPECT image can be approximated as the convolution of the ground truth spatial radioactivity with the system point spread function (PSF). The PSF of an SPECT system is determined by the combined ef...
SVD-Based Evaluation of Multiplexing in Multipinhole SPECT Systems
SVD Multipinhole SPECT Systems
2009/9/4
Multipinhole SPECT system design is largely a trial-and-error process. General principles can give system designers a general idea of how a system with certain characteristics will perform. However, t...