Improved SPECT Radioactivity Quantification Using MRI Side InformationUniversity of Michigan, 1996 |
Contents
FanBeam FilteredBackprojection Algorithm | 21 |
16 | 21 |
STATISTICAL ITERATIVE RECONSTRUCTION SIR | 90 |
Copyright | |
Common terms and phrases
2D phantom anatomical region information angle aperture ring apply ASPRINT acquisition ASPRINT system attenuation background radiation backprojection bias and STD centroid collimator Compton scatter computation Computed Tomography confidence region correction corresponding CSI2T defined depleted uranium detector element distribution emission energy EPC algorithm equation error evaluation fan-beam projection Figure filter final ellipsoid geometric hyperslab IEEE Trans Image Reconstruction image registration incorporate Iterative Reconstruction joint estimation approach line integral line source Maximum Likelihood measurement Medical Imaging method MLEM MRI anatomical region MRI images MRI region information Nuclear Medicine objective function parallel-beam parameters perform photo-peak window photons pixel PML-SAGE Poisson projection data quantification radioactivity reconstructed images reconstruction algorithms region labels resolution SAGE scatter set theoretic estimation simulations sinogram smoothness constraint SPECT and MRI SPECT functional SPECT images SPECT reconstruction statistical model syringes system weights tion tomographic total activity variable vector voxel weights matrix