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Document Type : Latin Dissertation
Language of Document : English
Record Number : 148982
Doc. No : ET20774
Main Entry : Feng Qiao
Title Proper : Segmenting Contrast-enhanced CT Images for Attenuation Correction of PET/CT Data
Note : This document is digital این مدرک بصورت الکترونیکی می باشد
Abstract : The use of contrast media in positron emission tomography (PET) / computed to-mography (CT) dual modality imaging has been shown to cause artifacts in the PETimage. These artifacts are attributed to an overestimation of the PET attenuation co-efficients, which are obtained from contrast-enhanced CT numbers. This dissertationevaluates three algorithms, which segment intravenous contrast-enhanced tissue fromCT images, so as to minimize this bias. The algorithms evaluated are the templatematching, 3D region growing, and snake-based methods, and they were tested using 5.
Subject : Electericl tess
: برق
electronic file name : TL43918.pdf
Title and statement of responsibility and : Segmenting Contrast-enhanced CT Images for Attenuation Correction of PET/CT Data [Thesis]
 
 
 
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