Essays about: "scandiDos"

Showing result 1 - 5 of 7 essays containing the word scandiDos.

1. 1. Impact of MLC shape smoothing on VMAT plan complexity and agreement between planned and delivered dose

   University essay from Lunds universitet/Sjukhusfysikerutbildningen

   Author : Linnéa Strandell; [2020]
   Keywords : Medicine and Health Sciences;

   Abstract : Background/Purpose: The aperture shape controller (ASC) was introduced in the Eclipse treatment planning system to reduce plan complexity by counteracting irregular multileaf collimator (MLC) shapes. This should lead to decreased difference between the planned and measured dose distribution. READ MORE

3. 2. Analysis of bladder cancer treatment plans generated for online adaptive radiotherapy and validation of an integrated independent dose calculation software

   University essay from Lunds universitet/Sjukhusfysikerutbildningen

   Author : Daria Badika; [2020]
   Keywords : Medicine and Health Sciences;

   Abstract : Purpose: In 2019 Varian EthosTM linear accelerator (Varian Medical Systems, CA, USA) with integrated artificial intelligence (AI) was installed at Herlev Hospital, Copenhagen, Denmark, enabling online adaptive radiotherapy (oART) e.g for bladder cancer patients with a large margin reduction. READ MORE

4. 3. Investigations of Electron Contamination in Photon Fluence Monitoring of Radiotherapy

   University essay from Uppsala universitet/Medicinsk strålningsvetenskap

   Author : Malcolm Lindqvist; Gustav Eriksson; [2015]
   Keywords : medical radiation physics; Photon Fluence Monitoring of Radiotherapy; immunology; genetics; pathology; radiation science; scandiDos; sjukhusfysik; scandiDos; filter; medicinteknik; akademiska sjukhuset;

   Abstract : During the last decades radiotherapy has made major improvements in accuracy and individualization of the treatment techniques. In this project the thickness of a tungsten filter has been optimized using both simulations and experiments in order to further reduce the uncertainty in the dose given to the patient. READ MORE

5. 4. Flattening filter free volumetric modulated arc therapy for extreme hypofractionation of prostate cancer - Decreasing the treatment time and reducing the impact of prostate motion

   University essay from Lunds universitet/Sjukhusfysikerutbildningen; Lunds universitet/Medicinsk strålningsfysik, Lund

   Author : Minna Ahlström; [2015]
   Keywords : Medicine and Health Sciences;

   Abstract : Purpose: This work examined the feasibility of flattening filter free (FFF) volumetric modulated arc therapy (VMAT) for extreme hypofractionation of prostate cancer. The aim was to investigate the potential gain in treatment time per fraction for extreme hypofractionation of prostate cancer, while preserving or improving the treatment plan quality and radiation delivery quality. READ MORE

6. 5. Evaluation of current quality assurance (QA) system for volumetric modulated arc therapy (VMAT) by studying the impact of introduced errors

   University essay from Lunds universitet/Sjukhusfysikerutbildningen

   Author : Marcus Krantz; [2010]
   Keywords : Strålterapi; Medicine and Health Sciences;

   Abstract : Introduction: Currently, patient specific dosimetric measurements on diode arrays such as Delta4® (ScandiDos AB) is a part of standard quality assurance (QA) for RapidArc® (RA) at Herlev University hospital. However, a standing issue is the interpretation of the results from dosimetric measurements into consequences in the delivered absorbed dose to the patient. READ MORE