Dosimetric effects near implanted vascular access ports: an examination of external photon beam dose calculations
نویسندگان
چکیده
an examination of external photon beam dose calculations Michael S. Gossman,1,a Jan P. Seuntjens,2 Monica F. Serban,3 Kelly J. Christian,4 Raymond C. Lawson,1 Mary A. Robertson,1 Jeffrey P. Lopez1 and Terry E. Justice1 Tri-State Regional Cancer Center,1 Ashland, Kentucky 41101 USA; McGill University, Montreal General Hospital,2 Medical Physics Unit, Montreal QC H3G 1A4 Canada; Maisonneuve-Rosemont Hospital,3 Radiation Oncology Department, Montreal, QC H1T 2M4, Canada; Bard Access Systems, Inc.,4 Salt Lake City, Utah 84116 USA. [email protected]
منابع مشابه
Dosimetric effects near implanted vascular access ports: an examination of external photon beam calculation.
Vascular access ports are used widely in the administering of drugs for radiation oncology patients. Their dosimetric effect on radiation therapy delivery in photon beams has not been rigorously established. In this work the effects on external beam fields when any of a variety of vascular access ports is included in the path of a high energy beam are studied. This medical physics study specifi...
متن کاملQuantification the dosimetric parameters of asymmetric physical wedged-6MV photon beam
Introduction: Physical wedge as a useful tool has been utilized in radiotherapy to modify photon beam shape and intensity such that it distributes dose uniformly in tumor site and reduces hot points. Since during Linac commissioning dosimetric parameters like output factors and lateral dose profiles are measured only for symmetric open and wedged fields, so calculation the par...
متن کاملMonte Carlo Study of Unflattened Photon Beams Shaped by Multileaf Collimator
Introduction: This study investigates basic dosimetric properties of unflattened 6 MV photon beam shaped by multileaf collimator and compares them with those of flattened beams.Materials and Methods: Monte Carlo simulation model using BEAM code was developed for a 6MV photon beam based on Varian Clinic 600 unique performance linac operated with and without a flattening filter in beam line. Dosi...
متن کاملA Review on the Use of Grid-Based Boltzmann Equation Solvers for Dose Calculation in External Photon Beam Treatment Planning
Deterministic linear Boltzmann transport equation (D-LBTE) solvers have recently been developed, and one of the latest available software codes, Acuros XB, has been implemented in a commercial treatment planning system for radiotherapy photon beam dose calculation. One of the major limitations of most commercially available model-based algorithms for photon dose calculation is the ability to ac...
متن کاملDepth dose enhancement in the presence of silicone gel breast prosthesis
Background: External beam radiation therapy is often administered to patients implanted with silicone gel breast prosthesis. The aim of this study was to investigate the influence of silicone gel breast prosthesis on photon dose distributions. In the event of recurrence, the oncologist may be forced to irradiate through the prosthetic device. To quantify the dose enhancement or reduction below ...
متن کامل