Results 261 to 270 of about 1,052,864 (307)
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Peripheral dose from megavolt beams
Medical Physics, 1983The peripheral dose (PD), defined as the dose outside of therapeutic radiation beams, has been investigated for 60Co, 4‐, 6‐, and 10‐MV x‐ray machines. The measurements have been carried out down to dose levels of about 0.1% of the peak dose in the beam, since that dose level may be of clinical importance in some situations. The PD measurements for the
B A, Fraass, J, van de Geijn
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Peripheral dose measurement with a MOSFET detector
Applied Radiation and Isotopes, 2005The accuracy of a MOSFET dosimetry system with respect to peripheral therapeutic doses from high-energy X-rays has been evaluated. The results have been compared with ionisation chamber measurements in the same peripheral regions of the beam. For 6 MV and 18 MV X-ray beams, the MOSFET system in the high-sensitivity mode produces reproducibility of dose
Martin J, Butson +2 more
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Surface and peripheral doses of dynamic and physical wedges
International Journal of Radiation Oncology*Biology*Physics, 1997The physical and dosimetric differences between three different wedge systems on a multileaf collimator (MLC) equiped linear accelerator are discussed in this report. In particular, the in-field and peripheral surface doses from these wedge systems are measured and their clinical differences discussed.A parallel-plate chamber was used in a solid water ...
Z, Li, E E, Klein
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Peripheral dose outside applicators in electron beams
Physics in Medicine and Biology, 2006The peripheral dose outside the applicators in electron beams was studied using a Varian 21 EX linear accelerator. To measure the peripheral dose profiles and point doses for the applicator, a solid water phantom was used with calibrated Kodak TL films. Peak dose spot was observed in the 4 MeV beam outside the applicator.
James C L, Chow, Grigor N, Grigorov
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Measurement of the peripheral doses for linac stereotactic radiotherapy
Radiation Protection Dosimetry, 2003The purpose of this study was to establish peripheral doses during stereotactic treatments. The doses to different organs were measured by thermoluminescence dosemeters. A simple power function can describe the relationship between the measured peripheral dose and the distance from target.
M, Majali, J, Novotny, J, Novotny
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Dose-Finding Methodology for Peripheral Nerve Blocks
Regional Anesthesia and Pain Medicine, 2014Dose-finding studies enable the successful conduct of peripheral nerve blocks by ensuring the administration of appropriate doses of local anesthetic. However, the optimal dose-finding methodology remains ambiguous. In this research methodology article, we set out to review the basic aspects pertaining to dose-response curves (graded vs quantal), the ...
Theodosios, Saranteas +2 more
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High-dose cisplatin-related peripheral neuropathy
Cancer Nursing, 1988Until recently, peripheral neuropathy (PN) has been a relatively uncommon side effect of cisplatin therapy. However, with the administration of high-dose cisplatin (DDP) (40 mg/m2 daily X 5 days), PN symptoms have emerged as a dose-limiting toxicity. Aaronson's et al.
Y, Ostchega, M, Donohue, N, Fox
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Evaluation of MatriXX for IMRT and VMAT dose verifications in peripheral dose regions
Medical Physics, 2010PurposeMatriXX is a two‐dimensional ion chamber array designed for IMRT/VMAT (RapidArc, IMAT, etc.) dose verifications. Its dosimetric properties have been characterized for megavoltage beams in a number of studies; however, to the best of the authors’ knowledge, there is still a lack of an investigation into its performance in the peripheral or low ...
Zhaohui, Han +4 more
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Peripheral Retinopathy and Maculopathy in High-dose Tamoxifen Therapy
American Journal of Ophthalmology, 2007To describe the clinical, angiographic, and optical coherence tomography (OCT) features of high-dose tamoxifen retinopathy in three male patients.Observational case series.A review of history, clinical examination, and findings on fluorescein angiography (FA) and optical coherence tomography (OCT) was conducted.Three male patients receiving high-dose ...
Dan H, Bourla +2 more
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Current concepts regarding drug dosing for peripheral stents
The Journal of Cardiovascular Surgery, 2019Drug-eluting stent (DES) are the mainstay therapy for the treatment of coronary artery disease. Stent design and drug-elution strategies have evolved over the years leading to the last generation DES which shows optimal safety and efficacy outcome. Peripheral arteries have different mechanical and biological features and the lessons learned from the ...
Marco, Ferrone +2 more
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