نتایج جستجو برای: radiotherapy of thorax
تعداد نتایج: 21173995 فیلتر نتایج به سال:
*Corresponding author: Dr. Asghar Mesbahi, Medical Physics Department, Medical School, Tabriz University of Medical Sciences, Tabriz, Iran. Fax: +98 411 3364660 Email: [email protected] Background: Prediction of the absorbed dose in irradiated volume plays an important role in the outcome of radiotherapy. Application of small fields for radiotherapy of thorax makes the dose calculation pr...
BACKGROUND AND PURPOSE The Medical Physics Division of the Portuguese Physics Society (DFM_SPF) in collaboration with the IAEA, carried out a national auditing project in radiotherapy, between September 2011 and April 2012. The objective of this audit was to ensure the optimal usage of treatment planning systems. The national results are presented in this paper. MATERIAL AND METHODS The audit...
Tumor Treating Fields (TTFields) are non-ionizing alternating electric fields that have anti-cancer properties. After the initial approval for use in patients with recurrent glioblastoma 2011 and newly diagnosed glioblastomas 2015, they now being tested those advanced lung cancer, ovarian carcinoma, pancreatic cancer. Unlike ionizing radiotherapy, TTFields non-linear propagation characteristics...
background & aim: glioblastoma multiforme (gbm), the highest grade glioma (grade iv), is the most malignant form of astrocytoma in adults. this study aimed at evaluating the relationship between demographic, clinical and medical factors with gbm outcome. methods & materials/patients: through a cross-sectional design, 58 patients with newly diagnosed gbm were studied from 1999 to 2015 in guilan ...
Radiation therapy to the thorax may induce early and late cardiac adverse effects if large parts of the heart have been included in the irradiation field and particularly if anthracycline-containing chemotherapy is concomitantly administered. We describe 3 cases of cardiotoxicity in patients with left breast cancer treated with anthracycline-containing chemotherapy and left thoracic radiotherap...
The improved accuracy in tumor identification with FDG-PET has led to its increased utilization in target volume delineation for radiotherapy treatment planning in the treatment of lung cancer. However, PET/CT has constantly been influenced by respiratory motion-related image degradation, which is especially prominent for small lung tumors in the peri-diaphragmatic regions of the thorax. Here, ...
Extensive stage small cell lung cancer (ES-SCLC) represents approximately half of all diagnosed small cell lung cancer worldwide. It is notorious for a high risk of local recurrence although it's sensitive to chemotherapy. Nearly 90% of intrathoracic failures happen in the first year after diagnosis. The cornerstone of treatment for ES-SCLC is etoposide-platinum based chemotherapy. Consolidativ...
We report a case of a 75-year old man that came at hematologist’s attention for lymphoma evaluation due to axillary lymph node enlargement and fever. Thorax, abdomen and pelvis Contrast-Enhanced Computed Tomography (CECT) showed lymph nodes, spleen and liver lesions. Axillary lymph node biopsy was performed and the diagnosis of marginal zone lymphoma (MZL) at stage IV was postulated, then the p...
Studying complex thorax breating motion is an important research topic for accurate fusion of functional and anatomical data, radiotherapy planning or reduction of breathing motion artifacts. We investigate segmented CT lung, airway and diaphragm surfaces at several different breathing states between Functional Residual and Total Lung Capacity. In general, it is hard to robustly derive correspo...
ObjectivesTo discover the prevalence of endotracheal tube (ETT) constriction and rostral caudal mispositioning in anaesthetised cats dogs, to identify associated risk factors.Study DesignRetrospective analysis.Animal populationA total 146 cats, 670 dogs.MethodsComputed tomography images head/neck/thorax from orotracheally intubated dogs were visually assessed for or ETT. If was present, measure...
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