Essays about: "cone-beam"
Showing result 16 - 20 of 33 essays containing the word cone-beam.
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16. Clinical implementation of 4D Guidance during lung cancer treatment with radiation therapy
University essay from KTH/Medicinteknik och hälsosystemAbstract : Radiotherapy is one of the main treatment for lung cancer. This technique relies on killing the tumor cells by focusing electron or photon beam in the area. READ MORE
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17. Surface guided radiotherapy for high precision treatments of brain metastases
University essay from Lunds universitet/SjukhusfysikerutbildningenAbstract : Purpose/Background High accuracy treatment techniques such as stereotactic radiotherapy (SRT) requires precise patient positioning prior to and during treatment. The Catalyst™ is an optical surface scanning (OSS) system that has been utilized for patient positioning and real time monitoring during radiotherapy. READ MORE
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18. Estimation of Noise and Contrast for CTA of the Brain
University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)Abstract : Computed tomography angiography (CTA) of the brain poses challenges on the imaging system; the contrast between blood vessels and surrounding soft tissue is very low, and to render small intricate vessel structures high spatial resolution is needed. Higher precision angiography would facilitate more accurate diagnosis of pathological conditions. READ MORE
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19. A comparison of surface based and laser based setup for rectal cancer patients in radiotherapy
University essay from Lunds universitet/SjukhusfysikerutbildningenAbstract : 60 00 cancerfall rapporteras in varje år till socialstyrelsen men där numera fler än hälften botas. Detta eftersom vi blir skickligare inom området och nya behandlingstekniker utvecklas. Rektalcancer, även kallat ändtarmscancer är en cancerform som ökat under de senaste decennierna. READ MORE
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20. Dosimetric verification of synthetic CT using Cone Beam CT in an MRI only workflow
University essay from Lunds universitet/SjukhusfysikerutbildningenAbstract : Background and purpose: The MRI only workflow aims to base the treatment planning solely on magnetic resonance imaging (MRI), hence excluding the traditional computed tomography (CT) scan. To do that synthetic computed tomography (sCT) data is generated, replacing the conventional CT data. READ MORE