نتایج جستجو برای: crt radiotherapy
تعداد نتایج: 68636 فیلتر نتایج به سال:
Although a few investigators have demonstrated the effect of concurrent chemoradiotherapy (CRT) for postoperative recurrent non-small cell lung cancer (NSCLC), the outcome of this treatment remains unclear. The aim of this study was to elucidate the efficacy and tolerability of concurrent CRT with cisplatin (CDDP) and vinorelbine (VNR) in patients with postoperative locoregional recurrent NSCLC...
Background: Head and neck cancers are the most common malignancy among males in India. Carcinoma of buccal mucosa is the most common cancer among head and neck cancers due to high rate of tobacco chewing habit. Aim and objectives: To study the comparison of acute toxicities and response of standard chemo radiation versus hyper fractionated radiotherapy in head and neck cancers. Materials and me...
IntroductionThe Neoadjuvant rectal (NAR) score is a new surrogate endpoint to be used in clinical trials for early determination of treatment response different preoperative therapies. The aim further validate the NAR-score, primarily developed using chemoradiotherapy (CRT) with delay surgery 6–8 weeks, and explore its value other schedules.Materials MethodsThe study included all 9978 patients ...
This study evaluates three-dimensional conformal radiotherapy (3D CRT), volumetric-modulated arc therapy (VMAT), and dynamic conformal arc therapy (DCAT) planning techniques using dosimetric indices from Radiation Therapy Oncology Group (RTOG) protocols 0236, 0813, and 0915 for the treatment of early-stage non-small cell lung cancer (NSCLC) using stereotactic body radiotherapy (SBRT). Twenty-fi...
Background To retrospectively evaluate the difference in terms of pathologic complete response (pCR) according to time elapsed between chemoradiation (CRT) and total mesorectal excision (TME) on a large unselected real-life dataset of locally advanced rectal cancer (LARC) patients. Methods A multicentre retrospective cohort study of LARC patients from 21 Italian Radiotherapy Institutions was ...
The study compares the physical and biologically effective doses (BED) received by the heart and cardiac substructures using three-dimensional conformal RT (3D-CRT), intensity-modulated radiotherapy (IMRT), and simple IMRT (s-IMRT) in postoperative radiotherapy for patients with left-sided breast cancer. From October 2008 to February 2009, 14 patients with histologically confirmed left-sided br...
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...
AIMS AND BACKGROUND We compared conformal, intensity-modulated radiotherapy (IMRT) and intensity-modulated arc therapy (IMAT) in early stage glottic cancer in terms of dosimetric features as target coverage, dose to the organs at risk and total treatment time. METHODS AND MATERIALS Five consecutive T1 glottic squamous cell carcinoma patients were selected for the study. Three-dimensional conf...
Background: Radiation-induced cardiac events and pneumonitis are the major late radiotherapy side effects. Methods: We explored differences in dose distribution between 3D CRT, IMRT VMAT 125 women with unilateral breast cancer. The various to tumor OARs were studied for left right sided irradiation. Results: Upon using CRT breasts lymph nodes, we observed a significant increase ipsilateral lung...
BACKGROUND Radical chemo-radiotherapy (CRT) is an effective organ-sparing treatment option for patients with locally advanced head and neck cancer (LAHNC). Despite advances in treatment for LAHNC, a significant minority of these patients continue to fail to achieve complete response with standard CRT. By constructing a multi-modality functional imaging (FI) predictive biomarker for CRT outcome ...
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