Sökning: "CT scan"
Visar resultat 1 - 5 av 72 uppsatser innehållade orden CT scan.
1. Limited angle reconstruction for 2D CT based on machine learning
Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)Sammanfattning : The aim of this report is to study how machine learning can be used to reconstruct 2 dimensional computed tomography images from limited angle data. This could be used in a variety of applications where either the space or timeavailable for the CT scan limits the acquired data.In this study, three different types of models are considered. LÄS MER
2. Datortomografi perfusions roll vid utredning och behandling av akut ischemisk stroke utifrån ett diagnostiskt och radiografiskt perspektiv : En litteraturstudie
Kandidat-uppsats, Örebro universitet/Institutionen för hälsovetenskaperSammanfattning : Stroke är den vanligaste orsaken till förvärvat neurologiskt funktionshinder hos vuxna och den tredje vanligaste dödsorsaken i Sverige. Antal symtom samt svårighetsgrad varierar beroende på skadans områdesbegränsning. Riskutsatt hjärnvävnad kan återhämta sig vid tidig behandling och kan minimera permanenta skador på hjärnan. LÄS MER
3. Optic nerve sheath diameter semantic segmentation and feature extraction
Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)Sammanfattning : Traumatic brain injury (TBI) affects millions of people worldwide, leading to significant mortality and disability rates. Elevated intracranial pressure (ICP) resulting from TBI can cause severe complications and requires early detection to improve patient outcomes. LÄS MER
4. Improving proton therapy planning with photon-counting spectral computed tomography
Master-uppsats, KTH/FysikSammanfattning : Proton radiation therapy is an alternative to conventional photon radiation therapy, which accounts for the majority of radiation treatments today. The rationale for using protons in radiation therapy lies in their dose deposition properties; photons deposit a radiation dose inversely proportional to the energy, and therefore tissue depth, while protons exhibit a sharp Bragg peak when traversing matter. LÄS MER
5. The Impact of Image Resolution on Lesion Detection in CT scans Using Machine Learning
Kandidat-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)Sammanfattning : Identifying cancer and other diseases that cause lesions (damages or abnormalities to tissue) early is crucial to assure the best treatment. However, lesions are often missed which can cause diseases to progress to an advanced-stage of the diseases which is harder to cure. LÄS MER