نتایج جستجو برای: small field radiotherapy
تعداد نتایج: 1564366 فیلتر نتایج به سال:
C. A. van den Berg, B. van den Bergen, H. Kroeze, L. W. Bartels, J. J. Lagendijk Dept. of Radiotherapy, University Medical Centre, Utrecht, Utrecht, Netherlands, Dept. of Radiology, University Medical Centre, Utrecht, Utrecht, Netherlands Introduction The application of MR imaging at high field (B0 ≥ 3 T, f ≥ 128 MHz) faces considerable challenges with respect to uniformity of the RF magnetic e...
This report describes the current state of flattening filter-free (FFF) radiotherapy beams implemented on conventional linear accelerators, and is aimed primarily at practicing medical physicists. The Therapy Emerging Technology Assessment Work Group of the American Association of Physicists in Medicine (AAPM) formed a writing group to assess FFF technology. The published literature on FFF tech...
Background: Estimating dosimetric parameters for small fields under non-reference conditions leads to significant errors if done based on conventional protocols used for large fields in reference conditions. Hence, further correction factors have been introduced to take into account the influence of spectral quality changes when various detectors are used in non-reference conditions at differen...
Joanna E. Cygler, Jan Seuntjens, J. Daniel Bourland, M. Saiful Huq, Josep Puxeu Vaque, Daniel Zucca Aparicio, Tatiana Krylova, Yuri Kirpichev, Eric Ford, Caridad Borras Stereotactic Radiation Therapy (SRT) utilizes small static and dynamic (IMRT) fields, to successfully treat malignant and benign diseases using techniques such as Stereotactic Radiosurgery (SRS) and Stereotactic Body Radiation T...
assessment of olfactory threshold in patients undergoing radiotherapy for head and neck malignancies
introduction: radiotherapy is a common treatment modality for patients with head and neck malignancies. as the nose lies within the field of radiotherapy of the head and neck, the olfactory fibers and olfactory receptors may be affected by radiation. the aim of this study was to evaluate changes in olfactory threshold in patients with head and neck malignancies who have received radiation to th...
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