Voxel-based partial volume correction for accurate quantitative voxel values

Medical Volume Visualization Beyond Single Voxel Values

An MR image-guided, voxel-based partial volume correction method for PET images.

PURPOSE Partial volume effect in positron emission tomography (PET) can cause incorrect quantification of radiopharmaceutical uptake in functional imaging. A PET partial volume correction method is presented to attenuate partial volume blurring and to yield voxel-based corrected PET images. METHODS By modeling partial volume effect as a convolution of point spread function of the PET scanner,...

Anatomically guided voxel-based partial volume effect correction in brain PET: Impact of MRI segmentation

Partial volume effect is still considered one of the main limitations in brain PET imaging given the limited spatial resolution of current generation PET scanners. The accuracy of anatomically guided partial volume effect correction (PVC) algorithms in brain PET is largely dependent on the performance of MRI segmentation algorithms partitioning the brain into its main classes, namely gray matte...

Partial-volume Bayesian Classification Using Voxel Histograms Based on " Partial-volume Bayesian Classification of Material Mixtures in Mr Volume Data Using Voxel His- Tograms " 12.1 Introduction

The distribution of different material types can be identified in volumetric datasets such as those produced with Magnetic Resonance Imaging (MRI) or Computed Tomography (CT). By allowing mixtures of materials and treating voxels as regions, the technique presented in this chapter reduces errors that other classification techniques can create along boundaries between materials and is 101 102 Ha...

P 24: Evaluation of the Voxel Based Morphometry in Quantitative Analysis of Brain MRI Images

Introduction: Voxel based morphometry is a type of statistical parametric mapping that can be used to investigate the effect of diseases such as epilepsy, Alzheimer's disease and Parkinson's disease or other agent such as skills on brain structure (white matter, gray matter and cerebrospinal fluid). The aim of this study is evaluate the effectiveness of this method in detection of differen...