Search for dissertations about: "VMAT"

Showing result 1 - 5 of 10 swedish dissertations containing the word VMAT.

  1. 1. Dosimetric effects of breathing motion in radiotherapy

    Author : Anneli Edvardsson; Lund Medicinsk strålningsfysik; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; NATURAL SCIENCES; MEDICAL AND HEALTH SCIENCES; radiotherapy; breathing motion; DIBH; interplay effects; VMAT; proton therapy; breast cancer; Hodgkin’s lymphoma; liver; dosimetry; treatment planning; medical physics;

    Abstract : The goal of radiotherapy is to deliver a homogeneous high dose of radiation to a tumour while minimising the dose to the surrounding healthy tissue. To achieve this, increasingly advanced treatment techniques, such as volumetric modulated arc therapy (VMAT) and proton therapy, have been developed. READ MORE

  2. 2. Quality Assurance in Radiotherapy - Development and evaluation of new tools for improved patient safety

    Author : Fredrik Nordström; Malmö Medicinsk strålningsfysik; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; monitor unit verification; in vivo dosimetry; real-time verification; gel dosimetry; 4D dosimetry; IMRT; VMAT; data integrity; radiotherapy; Quality assurance;

    Abstract : Preparation for radiotherapy is a complex procedure that involves many different technologies and groups of professionals. The rapid development and introduction of new technologies throughout the last decade have made it possible to deliver highly conformal, individually-shaped dose distributions with high accuracy. READ MORE

  3. 3. Characterization of Endocrine Cells and Tumours in the Stomach

    Author : Apostolos V. Tsolakis; Eva T. Janson; Mats Stridsberg; Guida M. Portela-Gomes; Ola Nilsson; Uppsala universitet; []
    Keywords : Oncology; ECL cells; ghrelin cells; gastric endocrine tumours; VMAT-2; ghrelin; obestatin; HDC; U-MeImAA; Onkologi;

    Abstract : Enterochromaffin-like (ECL) and ghrelin cells, in the human gastric mucosa and in gastric endocrine tumours (GETs), were subclassified with respect to immunohistochemical reaction vs. vesicular monoamine transporter 2 (VMAT-2), ghrelin/obestatin, and histidine decarboxylase (HDC). READ MORE

  4. 4. Towards Immunotherapy of Midgut Carcinoid Tumors

    Author : Sofia Vikman; Thomas Tötterman; Valeria Giandomenico; Bengt Widegren; Uppsala universitet; []
    Keywords : Immunology; midgut carcinoid; gene expression; immunotherapy; tumor antigen; VMAT-1; T cell; HLA-A*0201-binding peptide; IFNγ; regulatory T cell; Immunologi;

    Abstract : Classical midgut carcinoids belong to neuroendocrine tumors of the gastroenteropancreatic tract (GEP-NETs) and are associated with serotonin overproduction. The term midgut is derived from the tumors’ embryological site of origin: enterochromaffin cells in the lower jejunum, ileum, caecum and the ascending colon. READ MORE

  5. 5. Vesicle proteins as markers for neuroendocrine tumors

    Author : Anne-Marie Levin Jakobsen; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Keywords : ; Neuroendocrine tumours; gastrointestinal tract; pancreas; adrenal; vesicle proteins; SV2; NESP55; VMAT1; VMAT2; MIBG;

    Abstract : The neuroendocrine (NE) tumours comprise a diversity of tumours which share commonproperties, e.g. the capacity to produce, store and release hormones. A prominent feature ofthe NE phenotype is the production of secretory granules with associated vescicle proteins,e. READ MORE