Essays about: "head and neck cancer"

Showing result 1 - 5 of 14 essays containing the words head and neck cancer.

  1. 1. COMPARISON OF MULTI-CRITERIA OPTIMIZATION IN TWO DIFFERENT TREATMENT PLANNING SYSTEMS

    University essay from

    Author : Anna Lindström; [2021-05-10]
    Keywords : Medical physics; Multi-criteria optimization; Pareto front; volumetric modulated arc therapy; head and neck cancer; prostate cancer;

    Abstract : Purpose: The purpose with this study was to compare multi-criteria optimization (MCO) for volumetric modulated arc therapy (VMAT) treatment plans in two different treatment planning systems. Theory: When performing treatment planning prior to radiation therapy it is important to prioritize between absorbed dose to target and absorbed dose to organs at risk (OAR). READ MORE

  2. 2. Recurrence detection in oropharyngeal cancer –a retrospective cohortstudy

    University essay from Örebro universitet/Institutionen för medicinska vetenskaper

    Author : Mimmi Lind; [2021]
    Keywords : Oropharyngeal cancer; head- and neck cancer; recurrence; surveillance; routine follow-up;

    Abstract : Introduction: Oropharyngeal cancer (OPC) is a highly prevalent malignancy worldwideaffecting the tonsils, the soft palette and the base of the tongue. OPC has a high risk ofrecurrence. Patients are offered a 5-year follow-up program in order to discover earlyrecurrences. READ MORE

  3. 3. Quality assurance of a radiotherapy registry

    University essay from Umeå universitet/Institutionen för fysik

    Author : Linnea Sandberg; [2020]
    Keywords : Radiotherapy; Treatment Planning System; Quality Assurance; Information Network for Cancer Care; INCA;

    Abstract : The radiotherapy clinics in Sweden have been without a functioning national platform consisting of dose data from patients undergoing radiotherapy. A national collaboration between clinics will improve the quality of radiotherapy since clinics will be able to compare dose data from treatment plans between clinics. READ MORE

  4. 4. 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

  5. 5. Investigation of the prognostic value of CT and PET-based radiomic image features in oropharyngeal squamous cell carcinoma

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

    Author : Mohammed Mosad Said; [2016]
    Keywords : Medicine and Health Sciences;

    Abstract : Background Medical data in the form of radiographic routine scans is steadily accumulating. The analysis of such data through automated quantitative methods is believed to produce new information which would allow for more personalization of therapy. The present thesis investigated the use of such methods in head and neck cancer. READ MORE