Essays about: "intensity inhomogeneities"

Found 3 essays containing the words intensity inhomogeneities.

1. 1. Brain MRI segmentation for the longitudinal follow-up of regional atrophy in Alzheimer’s Disease

   University essay from KTH/Skolan för teknik och hälsa (STH)

   Author : Clemence Petit; [2014]
   Keywords : Segmentation; MRI; Brain; Alzheimer s Disease; Tissue classification; Graph-cuts optimization;

   Abstract : Brain atrophy measurement is increasingly important in studies of neurodegenerative diseases such as Alzheimer’s disease. From this perspective, a regional segmentation framework for magnetic resonance images has recently been developed by the team that I joined for my master thesis. It combines an atlas fusion and a tissue classification. READ MORE

3. 2. System for dose audit for external radiation therapy based on EPR dosimetry with Lithium Formate

   University essay from Fysikum

   Author : Zelga Malke; [2010]
   Keywords : Dose; audit;

   Abstract : Radiation therapy is an important method to treat cancer with the aim to deliver as high doses as reasonably achievable to the tumor while protecting the surrounding healthy tissue and organs at risk, OARs. Therefore, it is essential to have high accuracy in the dose delivered clinically and quality assurances are required. READ MORE

4. 3. Segmentation of the Brain from MR Images

   University essay from Medicinsk informatik; Tekniska högskolan

   Author : Jenny Caesar; [2005]
   Keywords : MR images; automatic segmentation; voxel classification; intensity inhomogeneities; the expectation-maximization algorithm;

   Abstract : KTH, Division of Neuronic Engineering, have a finite element model of the head. However, this model does not contain detailed modeling of the brain. This thesis project consists of finding a method to extract brain tissues from T1-weighted MR images of the head. The method should be automatic to be suitable for patient individual modeling. READ MORE