Essays about: "Medical physics"

Showing result 16 - 20 of 103 essays containing the words Medical physics.

1. 16. Evaluation of deep learning image reconstruction for brain- and abdominal CT - A visual grading characteristics study

   University essay from

   Author : Tuva Skarp; [2022-05-04]
   Keywords : Medical physics; CT; Computed tomography; imaging; Deep learning image reconstruction;

   Abstract : Computed tomography (CT) is a common medical imaging method today. There are different ways of reconstructing the images from a CT examination. The standard method is the filtered back projection (FBP). READ MORE

3. 17. Optimization of MP2RAGE sequence parameters for head and neck T1-mapping and OE-MRI

   University essay from

   Author : Ellen Börjesson; [2022-05-04]
   Keywords : Medical physics; MRI; OE-MRI; MP2RAGE; T1-mapping;

   Abstract : Cancer is the collective name for more than 200 types of diseases that annually causes the death of 8.8 million people, cancer in the head and neck (H&N) accounts for 330.000 of these. It has been shown that hypoxic tumors are more resistant to treatment than well oxygenated tumors. READ MORE

4. 18. Region-based analysis of magnetic resonance brain images: integrating statistical analysis and visualization

   University essay from

   Author : Yu-Ping Hsu; [2022-04-05]
   Keywords : Medical physics; Neuroimage; Brain segmentation; Statistical analysis; Visualization;

   Abstract : Purpose: The purpose of the project was to develop a processing toolchain that takes MR brain images and their anatomical segmentations as input and produces image visualizations, data visualizations, and statistical analyses in a unified manner for the users who work with neuroimaging and quantitative brain anatomy, including pathological anatomy. A secondary aim was to package and release the software publicly as open source. READ MORE

5. 19. Deep Neural Networks for Noise Reduction and Bias Removal in MR Diffusion Signal

   University essay from

   Author : Beqir Berisha; [2022-03-22]
   Keywords : Medical physics; Deep Neural network; Prostate cancer; noise; Diffusion-weighted imaging; Rician bias correction;

   Abstract : The purpose of this study is to assess the potential of deep neural networks, trained by unsupervised learning, for diffusion weighted imaging (DWI) data modeling and denoising. DWI data were modeled by a biexponential model and Rician bias was corrected for. READ MORE

6. 20. Evaluation of the iterative kilovoltage cone-beam computed tomography reconstruction method for the Varian TrueBeam system

   University essay from

   Author : Tamana Haidari; [2022-03-18]
   Keywords : Medical physics; FDK algorithm; iterative algorithm; CBCT; image quality;

   Abstract : Introduction: Radiotherapy is used to treat patients with various types of cancer, where linear accelerators produce the radiation beam used for the treatment. Before each treatment fraction, the patient needs to be correctly positioned according to the treatment plan. READ MORE