Identifier
etd-07062005-165558
Degree
Master of Science (MS)
Department
Physics and Astronomy
Document Type
Thesis
Abstract
Positron emission tomography (PET) and computed tomography (CT) are well established and powerful tools for medical diagnostics but even integrated PET/CT scanner images still lack the necessary quality and resolution that would make medical diagnoses flawless. In this thesis experiments were performed to statistically determine the effect that image acquisition parameters have upon diagnostic accuracy. Images from different PET/CT scanners were assessed by comparing subject human diagnostic accuracy from a sample of both professional and student volunteers. The assessment results were compared to the objective NEMA-standards performance data provided by the manufacturers for each scanner. The data analysis method is the receiver operating characteristic (ROC) curves. We hypothesize that human performance in making accurate diagnoses from PET images correlates with the system performance. The data shows that human diagnostic performance correlates to spatial resolution and sensitivity of the PET imaging systems.
Date
2005
Document Availability at the Time of Submission
Release the entire work immediately for access worldwide.
Recommended Citation
Bernstein, Kenneth, "ROC comparison of acquisition parameters for two PET/CT scanners based on lesion detectability in a torso phantom" (2005). LSU Master's Theses. 2028.
https://repository.lsu.edu/gradschool_theses/2028
Committee Chair
Kenneth L. Matthews II
DOI
10.31390/gradschool_theses.2028