Essays about: "Multimodality imaging"

Found 4 essays containing the words Multimodality imaging.

  1. 1. Effects of reconstruction parameters on the image quality and quantification of PET images from PET/MRI and PET/CT systems

    University essay from

    Author : Ali Amena Hussain; [2022-03-09]
    Keywords : Medical physics; PET CT; PET MRI; OSEM; BPL; NEMA IQ; positron emission tomography; magnetic resonance imaging; computed tomography; ordered Subset Expectation Maximization; The Bayesian Penalized Likelihood;

    Abstract : Aim: To study how reconstruction parameters affect the positron emission tomography (PET) image quality and quantitative results for the different lesion to background radioactivity ratios in three different PET systems. Introduction: Multimodality imaging that combines magnetic resonance imaging (MRI) or computed tomography (CT) with a PET system can produce medical images containing both functional and anatomical information. READ MORE

  3. 2. Development of Registration and Fusion Methods for the Jonasson Medical Imaging Center MiniPET-microCT

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Dimitrios Gkotsoulias; [2018]
    Keywords : miniPET; microCT; Medical imaging; Multimodality imaging; Registration; Fusion; Elastix; Mutual Information;

    Abstract : Multimodal image registration is essential when combining functional and structural imaging modalities. Among the most common combinations, numerous methods have been developed for co-registration of CT and PET, typically validated on human size scanners. READ MORE

  4. 3. Information Theoretic Similarity Measures for Robust Image Matching : Multimodal Imaging - Infrared and Visible light

    University essay from KTH/Teoretisk datalogi, TCS

    Author : Jamila Yusuf Isse; Chaimae El Ghouch; [2016]
    Keywords : ;

    Abstract : Abstract This study aimed to investigate the applicability of three different information theoretic similarity measures in image matching, mutual information (MI), cross-cumulative residual entropy (CCRE) and sum of conditional variances (SCV). An experiment was conducted to assess the impact on the performances of the similarity measures when dealing with multimodality, in this case in the context of infrared and visible light. READ MORE

  5. 4. Dosimetric and geometric evaluation of MRI as the only imaging modality for the radiotherapy treatment process of localized prostate cancer

    University essay from Lunds universitet/Sjukhusfysikerutbildningen

    Author : Johan Sjöberg; [2010]
    Keywords : Strålterapi; Medicine and Health Sciences;

    Abstract : Introduction MRI provides better soft tissue contrast than CT and is an invaluable tool in the radiotherapy treatment process. The gold standard today is image fusion of MRI and CT data where targets and organs-at-risk are delineated on the MRI data and the dose calculation is performed on the CT data. READ MORE