نتایج جستجو برای: helical tomotherapy
تعداد نتایج: 24346 فیلتر نتایج به سال:
PURPOSE We report our experience of using helical tomotherapy (HT) to treat large and irregular shaped loco-regional advanced breast cancer target volumes embracing various organs at risk. PATIENTS AND METHODS We retrospectively analyzed 26 patients treated for very large, irregular shaped breast cancers. Patients were treated either with the intent to achieve local control in a primary setti...
BACKGROUND To review the experience and to evaluate the treatment plan of using helical tomotherapy (HT) for the treatment of cervical cancer. METHODS Between November 1st, 2006 and May 31, 2009, 10 cervical cancer patients histologically confirmed were enrolled. All of the patients received definitive concurrent chemoradiation (CCRT) with whole pelvic HT (WPHT) followed by brachytherapy. Dur...
The ultimate goal of radiation therapy is to efficiently deliver radiation in order to eradicate tumors, while adequately sparing nearby normal tissues. With the emergence of advanced technologies in radiation delivery, more and more conformal radiation delivery has been achieved in order to overcome challenges such as motion management between treatment fractions as well as during radiation de...
Stereotactic body radiotherapy (SBRT) proved to be an effective treatment with acceptable toxicity for lung tumors. However, the use of helical intensity-modulated (IM) SBRT is controversial. We investigated the outcome of lung tumor patients treated by IMSBRT using helical tomotherapy with a Japanese standard fractionation schedule of 48 Gy in 4 fractions (n = 37) or modified protocols of 50-6...
For routine pretreatment verification of innovative treatment techniques such as (intensity modulated) dynamic arc therapy and helical TomoTherapy, an on-line and reliable method would be highly desirable. The present solution proposed by TomoTherapy, Inc. (Madison, WI) relies on film dosimetry in combination with up to two simultaneous ion chamber point dose measurements. A new method is propo...
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