منابع مشابه
IMRT for nasal tumors - local control and cosmetic outcome
Background: To evaluate local control and cosmetic outcome in patients with cancer in the nasal cavity/vestibule treated with intensity-modulated radiotherapy (IMRT). Methods: From 06/2008 – 11/2012 15 consecutive patients presenting nasal cavity (n=5), ala of the nose (n=5) or nasal vestibule tumors (n=5) were treated in our institution either postoperatively (n=8) or as definitive treatment (...
متن کاملIntensity-Modulated Radiotherapy (IMRT): Central Nervous System Tumors
When Policy Topic is covered Intensity-modulated radiotherapy (IMRT) may be considered medically necessary for the treatment of tumors of the central nervous system when the tumor is in close proximity to organs at risk (brain stem, spinal cord, cochlea and eye structures including optic nerve and chiasm, lens and retina) and 3-D CRT planning is not able to meet dose volume constraints for norm...
متن کاملComparison of direct machine parameter optimization versus fluence optimization with sequential sequencing in IMRT of hypopharyngeal carcinoma
BACKGROUND To evaluate the effects of direct machine parameter optimization in the treatment planning of intensity-modulated radiation therapy (IMRT) for hypopharyngeal cancer as compared to subsequent leaf sequencing in Oncentra Masterplan v1.5. METHODS For 10 hypopharyngeal cancer patients IMRT plans were generated in Oncentra Masterplan v1.5 (Nucletron BV, Veenendal, the Netherlands) for a...
متن کاملAP-PA field orientation followed by IMRT reduces lung exposure in comparison to conventional 3D conformal and sole IMRT in centrally located lung tumors
Little attention has been paid to the fact that intensity modulated radiation therapy (IMRT) techniques do not easily enable treatment with opposed beams. Three treatment plans (3 D conformal, IMRT, and combined (anterior-posterior-posterio-anterior (AP-PA) + IMRT) of 7 patients with centrally-located lung cancer were compared for exposure of lung, spinal cord and esophagus. Combined IMRT and A...
متن کاملHypopharyngeal foreign body.
An 87-year-old woman was referred to our hospital with frequent vomiting, dysphagia and appetite loss lasting for three days. She rejected solid food, although she was able to drink water. No fever, cough, or dyspnea was observed. She had been bedridden for eight years, as a result of a subarachnoid hemorrhage and was therefore unable to communicate. A physical examination revealed salivary ret...
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ژورنال
عنوان ژورنال: Strahlentherapie und Onkologie
سال: 2006
ISSN: 0179-7158,1439-099X
DOI: 10.1007/s00066-006-1556-2