OBJECT The authors sought to assess the safety and efficacy of stereotactic radiotherapy when using a linear accelerator equipped with a micromultileaf collimator for the treatment of patients with acoustic neuromas. METHODS Fifty patients harboring acoustic neuromas were treated with stereotactic radiotherapy between September 1997 and June 2003. Two patients were lost to follow-up review. P...

The increasing incidence of obesity in Poland and its relation to endometrioid endometrial cancer (EEC) is resulting in the increasing necessity of treating obese women. Treatment of an overweight patient with EEC may impede not only the surgical procedures but also radiotherapy, especially external beam radiotherapy (EBRT). The problems arise both during treatment planning and when delivering ...

background: radiotherapy plays an important role in the management of most malignant and many benign primary central nervous system (cns) tumors. radiotherapy affects both tumor cells and uninvolved normal cells; so, it is important to estimate absorbed dose to organs at risk in this kind of treatment. the aim of this study was to determine the absorbed dose to chiasma, lens, optic nerve, retin...

The treatment couch and some of the positioning devices of patients receiving radiotherapy treatment are made of a material (carbon) which has low attenuation properties for the photon energies used in the radiotherapy. Previous investigations showed the suitability of carbon fiber tabletops in radiotherapy and their very low attenuation properties for a range of X-ray energies and field sizes ...

Proton radiotherapy is an important technology for cancer treatment. By reducing and even eliminating unwanted radiation dose to surrounding tissue, proton therapy has the potential to lessen the toxicity of radiotherapy. The promise of precisely delivered radiation doses has led to the adoption of proton radiotherapy in selected centers across the United States.[1] Currently there are 11 proto...

Radiotherapy is the use of ionizing radiation in the treatment of malignant tumors. It is one of the main treatment modalities for many forms of cancer, with more than half of all cancer patients receiving radiation therapy at some point in their treatment.1 Biological and technological advances have brought notable improvements in radiotherapy over the years. Biologically based advances includ...

Introduction: The application of 3D volumetric imaging modalities in treatment planning of radiation therapy can provide more precisely define tumor localization, and computed tomography (CT) is the most common accepted method for treatment planning. Given the lack of a CT scanner stationed in all radiotherapy departments and equipping most of the medical linear accelerators wi...

PURPOSE Gastrointestinal stromal tumor (GIST) has been considered radiation-resistant, and radiotherapy is recommended only for palliation of bone metastases in current treatment guidelines. No registered prospective trial has evaluated GIST responsiveness to radiotherapy. PATIENTS AND METHODS Patients with GIST progressing at intra-abdominal sites or the liver were entered to this prospectiv...

Prostate cancer is one of the leading causes of cancer death in males. Hence early detection is the key to early management and favorable outcome. Correct staging is required as it determines the treatment protocols especially radiotherapy planning and prognosis. Hence, this article aims to provide an imaging insight in to prostatic carcinoma for easy reference to accurate staging required for ...