Sökning: "Phantom 4"
Visar resultat 6 - 10 av 61 uppsatser innehållade orden Phantom 4.
6. Undersökning av markstödens betydelse för lägesnoggrannhet hos ortomosaik fotogrammetriskt genererade med UAV-bilder
Kandidat-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)Sammanfattning : Syftet med examensarbetet är att undersöka markstödens placeringar och fördelningar i plan och om höjden har en inverkan på noggrannheten i ortomosaik. En jämförelse genomförs mellan totalstation och UAV-koordinater. LÄS MER
7. Preparations for photon external beam radiotherapy treatment planning of small animals
Master-uppsats, Lunds universitet/SjukhusfysikerutbildningenSammanfattning : Introduction:The XenX is a small animal irradiation system that acquires high-resolution cone-beam tomography (CBCT) images of small animals and treats small animals with higher precision than medical linear accelerators. MuriSlice is a software for CBCT image reconstruction. LÄS MER
8. EVALUATION OF RADIATION DOSES USING CONE BEAM COMPUTED TOMOGRAPHY IN ENDOVASCULAR AORTIC REPAIR AND SCOLIOSIS PROCEDURES
Master-uppsats,Sammanfattning : Purpose: The study includes the two areas, vascular surgery and orthopedics, and focuses on endovascular aortic aneurysm repair (EVAR) and scoliosis procedures. EVAR procedures contribute to a high radiation dose to the patient and for scoliosis procedures, it is often young girls that are undergoing surgery. LÄS MER
9. Investigation of a Collapsed Cone Superposition Algorithm for dosimetry in brachytherapy
Master-uppsats, Stockholms universitet/FysikumSammanfattning : Background & Purpose: The current standard dosimetry in brachytherapy treatment planning, the TG-43 formalism, ignore the presence of non-water media and finite patient dimensions. This can cause clinically relevant errors in dose estimates. LÄS MER
10. Development of methods and software for rapid quality control in fluoroscopy
Master-uppsats, Umeå universitet/Institutionen för fysikSammanfattning : Background: Fluoroscopy is a common imaging technique which uses X-ray to derive a real time imaging of patient anatomy to determine diagnosis and positioning of patients for interventional procedures. It is therefore important that the fluoroscopy systems maintain their performance. LÄS MER