نتایج جستجو برای: helical tomotherapy
تعداد نتایج: 24346 فیلتر نتایج به سال:
Helical Tomotherapy (HT) has become increasingly popular over the past few years. However, its clinical efficacy and effectiveness continues to be investigated. Pre-treatment patient repositioning in highly conformal image-guided radiation therapy modalities is a prerequisite for reducing setup uncertainties. A MVCT image set has to be acquired to account for daily changes in the patient's inte...
Purpose: To assess clinical outcomes after using IG-IMRT for palliation among patients with advanced cancers. Methods: Patients with advanced and/or metastatic cancers were treated on our Tomo-PAL (Tomotherapy-Planning and Administration Linked) protocol using helical TomoTherapy and evaluated to assess clinical efficacy of treatment as well as to assess side effects. Results: A total of 40 pat...
The aim of this study was to evaluate the efficacy of helical tomotherapy plus capecitabine as a preoperative chemoradiotherapy (CRT) in patients with locally advanced rectal cancer (LARC). Thirty-six LARC patients receiving preoperative CRT were analyzed. Radiotherapy (RT) consisted of 45 Gy to the regional lymph nodes and simultaneous-integrated boost (SIB) 50.4 Gy to the tumor, 5 days/week f...
AIMS AND BACKGROUND The TomoTherapy Hi-Art II system is able to deliver dynamic intensity-modulated radiation therapy within a helical geometry providing robust conformality and modulation, abrupt dose falloff, and reliable accuracy. A new upgrade named TomoDirect was introduced recently, allowing delivery of radiation at discrete angles with a fixed gantry. We present our preliminary clinical ...
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