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Optimal nonlinear line-of-flight estimation in PET
Artificial neural network emission tomography gamma camera scintillation detector
2010/1/7
The authors consider detection of high-energy photons in positron emission tomography using thick scintillation crystals.Parallax effect and multiple Compton interactions in such
crystals significant...
Optimal nonlinear line-of-flight estimation in PET
Artificial neural network emission tomography gamma camera scintillation detector
2010/1/7
The authors consider detection of high-energy photons in positron emission tomography using thick scintillation crystals.Parallax effect and multiple Compton interactions in such
crystals significant...
Reciprocal Benefits of Mass-Univariate and Multivariate Modeling in Brain Mapping: Applications to Event-Related Functional MRI, H215O-, and FDG-PET
MRI H215O FDG-PET
2009/9/8
In brain mapping studies of sensory, cognitive, and motor operations, specific waveforms of dynamic neural activity are predicted based on theoretical models of human information processing. For examp...
Improved Image Fusion in PET/CT Using Hybrid Image Reconstruction and Super-Resolution
Improved Image Fusion PET/CT
2009/9/8
Purpose. To provide PET/CT image fusion with an improved PET resolution and better contrast ratios than standard reconstructions. Method. Using a super-resolution algorithm, several PET acquisitions w...
Registration of Brain MRI/PET Images Based on Adaptive Combination of Intensity and Gradient Field Mutual Information
MRI/PET Images Intensity
2009/9/7
Traditional mutual information (MI) function aligns two multimodality images with intensity information, lacking spatial information, so that it usually presents many local maxima that can lead to ina...
Clustering-Based Linear Least Square Fitting Method for Generation of Parametric Images in Dynamic FDG PET Studies
Parametric Images Dynamic FDG PET Studies
2009/9/7
Parametric images generated from dynamic positron emission tomography (PET) studies are useful for presenting functional/biological information in the 3-dimensional space, but usually suffer from thei...
Cerebral Blood Flow Measurement Using fMRI and PET: A Cross-Validation Study
fMRI PET Cerebral Blood Flow Measurement
2009/9/4
An important aspect of functional magnetic resonance imaging (fMRI) is the study of brain hemodynamics, and MR arterial spin labeling (ASL) perfusion imaging has gained wide acceptance as a robust and...