Essays about: "x-ray computed tomography"

Showing result 1 - 5 of 38 essays containing the words x-ray computed tomography.

  1. 1. Optimization of an advanced algorithm for bone imaging

    University essay from Lunds universitet/Avdelningen för Biomedicinsk teknik

    Author : Adam Mrozek; [2022]
    Keywords : osteoporosis; optimization; programming; engineering; X-ray; bone; mineral density; speed; faster; projection; MATLAB; C ; Technology and Engineering;

    Abstract : Fracture risk in osteoporosis is increased and osteoporosis is the most common metabolic bone disease and treatment is expensive. Osteoporosis is diagnosed by measuring Bone Mineral Density (BMD), which does not consider other factors such as bone geometry or architecture. READ MORE

  2. 2. Image analysis on the structure of the Achilles tendon

    University essay from Lunds universitet/Avdelningen för Biomedicinsk teknik

    Author : Linnea Andersson; [2022]
    Keywords : biomechanics; Achilles tendon; image analysis; image processing; tendons; synchrotron; computed tomography; phase contrast; Technology and Engineering;

    Abstract : The Achilles tendon is the largest tendon of the human body which makes injuries of it very painful and incapacitating. A common factor of the pain are heterotopic ossifications, which are mineral deposits occurring inside the normal tendon tissue. Why and how heterotopic ossifications occur are somewhat unknown. READ MORE

  3. 3. EVALUATION OF RADIATION DOSES USING CONE BEAM COMPUTED TOMOGRAPHY IN ENDOVASCULAR AORTIC REPAIR AND SCOLIOSIS PROCEDURES

    University essay from

    Author : Louise Strandberg; [2021-04-06]
    Keywords : Medical physics; Cone beam CT; CT; EVAR; scoliosis; radiation dose; effective dose;

    Abstract : 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. READ MORE

  4. 4. Material decomposition using a photon counting X-ray detector in low energy range

    University essay from Lunds universitet/Sjukhusfysikerutbildningen

    Author : Rasmus Solem; [2021]
    Keywords : Medicine and Health Sciences;

    Abstract : Material decomposition in X-ray imaging is used to separate different materials or elements in an image and to quantify their respective concentration. The material decomposition and quantification are made possible by the dependency of attenuation on the attenuating material and photon energy. READ MORE

  5. 5. Evaluation of the Impact of X-ray Tube Voltage and Filter Thickness on the Performance of Spectral Photon-Counting Detectors

    University essay from KTH/Medicinteknik och hälsosystem

    Author : Cassandra Mannila; Marcus Larsson; [2021]
    Keywords : Photon Counting Detectors; X-ray Tube Voltage; Filter Thickness; Detective Quantum Efficiency; Optimizing; Fotonräknande detektorer; Rörspänning; Filtertjocklek; DQE; Optimering;

    Abstract : During the past years photon-counting detectors (PCDs) have emerged as an alternative to conventional energy-integrating detectors and may significantly improve the standard of care for computed tomography (CT). There are two main alternatives for the material of the detector: cadmium telluride (CdTe) and silicon (Si). READ MORE