نتایج جستجو برای: treatment verification
تعداد نتایج: 1466747 فیلتر نتایج به سال:
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چکیده ندارد.
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...
PURPOSE To survey image guided radiation therapy (IGRT) practice patterns, as well as IGRT's impact on clinical workflow and planning treatment volumes (PTVs). METHODS AND MATERIALS A sample of 5979 treatment site-specific surveys was e-mailed to the membership of the American Society for Radiation Oncology (ASTRO), with questions pertaining to IGRT modality/frequency, PTV expansions, method ...
The requirement of an independent verification of the monitor units (MU) or time calculated to deliver the prescribed dose to a patient has been a mainstay of radiation oncology quality assurance. The need for and value of such a verification was obvious when calculations were performed by hand using look-up tables, and the verification was achieved by a second person independently repeating th...
Methods This study has followed a retrospective clinical and laboratory data analysis. The data were classified according to the treatment protocol given into two groups, both of which continued their treatment plan for a period of three years. Fifty children (Control group) who were treated with combination therapy (budesonide 80 mg /formoterol 4 mcg), two puffs twice daily. The Control group ...
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