Essays about: "Dynamic phantom"

Showing result 1 - 5 of 12 essays containing the words Dynamic phantom.

1. 1. Robustness Analysis of Perfusion Parameter Calculations

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Alicia Palmér; [2024]
   Keywords : Perfusion; Medical image analysis; Dynamic Contrast Enhanced Magnetic Resonance Imaging; Tofts model; Functional imaging; Optimization; T1 map; Perfusion; Medicinsk bildanalys; Dynamisk kontrastförstärkt magnetisk resonanstomografibildtagning; Tofts-modell; Funktionell bildbehandling; Optimering; T1 karta;

   Abstract : Cancer is one of the most common causes of death worldwide. When given optimal treatment, however, the risk of severe illness may greatly be reduced. Determining optimal treatment in turn requires evaluation of disease progression and response to potential, previous treatment. READ MORE

3. 2. Monte Carlo evaluation of static and dynamic 6FFF treatments - Evaluation of dose distributions calculated with AAA, Acuros XB, and Collapsed Cone (RayStation and DoseCheck)

   University essay from

   Author : Alma Blombäck; [2023-02-23]
   Keywords : Medical physics; Monte Carlo; 6FFF; AAA; Acuros XB; DoseCheck; RayStation; DVH evaluation; flattening filter free;

   Abstract : There are several benefits to removing the standard flattening filter and using so-called flattening filter free (FFF) treatments in external radiation therapy with photons. The main advantage is the possibility of significantly shortening the treatment time, de spite this FFF is not widely used yet. READ MORE

4. 3. Evaluation of the impact of reduced scan field-of-view (SFOV) on CT radiation dose and image quality in a chest CT – a phantom study

   University essay from Örebro universitet/Institutionen för hälsovetenskaper

   Author : Fleury Ndongozi; [2022]
   Keywords : ;

   Abstract : Background: Technical development of image detectors and dose-reduction techniques in computed tomography (CT) have contributed to reduce radiation dose for patient and staff. The scan field of view (SFOV) generally affects the radiation dose the patient will beexposed. READ MORE

5. 4. Development of an MRI-compatible Multi-compartment Phantom for Dynamic Studies

   University essay from KTH/Medicinteknik och hälsosystem

   Author : Jonas Ström Seez; Frederick Holmer Fann; [2020]
   Keywords : Dynamic studies; Dynamic phantom; Multi-compartment analysis; MRI compatible; PET; SPECT; Gamma camera; Nuclear medicine; Dynamiska studier; Dynamisk fantom; Multi-kammar analys; MRI kompatibel; PET; SPECT; Gammakamera; Nuklearmedicin;

   Abstract : Medical imaging based on radioactive tracers exposes the patient to radiation. For this reason, a phantom is preferably used for non-clinical studies such as routine quality assurance and research. The aim of this project was to design, build and test a multi-compartment phantom to be used in dynamic SPECT/CT, PET/CT and PET/MRI studies. READ MORE

6. 5. Diffuse correlation spectroscopy for estimation of coagulation thickness : a phantom study

   University essay from Linköpings universitet/Institutionen för medicinsk teknik

   Author : Zeyneb Alsadi; [2019]
   Keywords : DCS; Diffuse correlation spectroscopy; Biomedical optics; coagulation; phantom study; coagulation depth; coagulation thickness; diffusion; model; two layer model;

   Abstract : The objective of this preliminary study was to determine the potential of diffuse correlation spectroscopy (DCS) for assessment of coagulation depth. Coagulation of tissue can occur due to a number of different reasons such as thermal or electrical burns or radiofrequency ablation. READ MORE