نتایج جستجو برای: dosimetric parameters
تعداد نتایج: 583178 فیلتر نتایج به سال:
PURPOSE The purpose of this study is to investigate the dosimetric and clinical influence of computed tomography-based (3-dimensional [3D]) simulation versus conventional 2-dimensional (2D)-based simulation in postoperative chemoradiotherapy (CRT) for patients with advanced gastric cancer in terms of parallel opposed anteroposterior-posteroanterior field arrangement. MATERIALS AND METHODS A r...
The purpose was to compare the dosimetric results observed in 201 breast cancer patients submitted to tangential forward intensity-modulated radiation therapy (IMRT) with those observed in 131 patients treated with a standard wedged 3D technique for postoperative treatment of whole breast, according to breast size and supraclavicular node irradiation. Following dosimetric parameters were used f...
As the complexity of radiation therapy has increased, the need for quantitative dosimetric evaluation of treatment delivery has also increased. A growing number of investigations have expanded the use of EPIDs from anatomic applications to dosimetric verification. This work focuses on the applications of EPIDs for pre-treatment dosimetric verification of IMRT and intensity modulated arc therapy...
Background: Adjuvant chemoradiotherapy is the standard treatment for gastric carcinoma, but optimal radiation modality remains uncertain. This study aimed to compare intensity-modulated radiotherapy (IMRT) and three-dimensional conformal (3D-CRT) in terms of dosimetry adjuvant cancer treatment. Methods: 21 patients with stage IIB-IIIC cancer, treated between January June 2021, underwent surgery...
There are numerous treatment options available to treat hepatocellular carcinoma (HCC). Up now, stereotactic body radiotherapy (SBRT) has been considered the best option cure HCC, however SBRT does not adequately spare nearby organ at risk (OAR) [1]. A high dose rate interstitial brachytherapy (HDR IBT) technique for HCC is as an alternative due accurate and precise delivery target well spared ...
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