نتایج جستجو برای: rotationaltotalskin electron therapy

تعداد نتایج: 955490  

Journal: :Journal of Applied Clinical Medical Physics 2014

2010
Omar A. Zeidan Bhavin D. Chauhan William W. Estabrook Twyla R. Willoughby Rafael R. Manon Sanford L. Meeks

We report on our initial experience with daily image guidance for the treatment of a patient with a basal cell carcinoma of the nasal dorsum using bolus electron conformal therapy. We describe our approach to daily alignment using treatment machine-integrated megavoltage (MV) planar imaging in conjunction with cone beam CT (CBCT) volumetric imaging to ensure the best possible setup reproducibil...

Journal: :journal of medical signals and sensors 0

an important need in radiation therapy is a fast and accurate treatment planning system. this system using ct data and characteristics of the radiation beam, calculates the dose in all points of the patient’s volume. two main factors in planning system are “accuracy” and “speed”. according to these factors, various generation of treatment planning systems are developed.   this article is the re...

2009
Paulo Vera-Cruz Carlos Zagalo José Martins dos Santos Artur P. Águas

Hyperbaric oxygen (HBO) therapy is becoming increasingly popular in the treatment of several pathologies, namely in vascular diseases. It is generally considered to be innocuous, with few restrictions. Thus, patients subjected to HBO therapy breath saturated oxygen at an elevated pressure. Since the respiratory mucosa comes into contact with this altered inhaled air, we decided to use light and...

محمد جواد طهماسبی بیرگانی مرضیه طهاسبی, منصور ذبیح زاده ناهید چگنی,

زمینه و هدف: پرتودرمانی یکی از روش های اصلی درمان و کنترل تومورها است. امروزه سیستم های تلفیقی پرتودرمانی و تصویربرداری MRI توسعه یافته اند. میدان های مغناطیسی ناشی از این سیستم ها می تواند بر توزیع دوز در بافت هدف تاثیر بگذارد. لذا، هدف از این مطالعه، بررسی آثار میدان های مغناطیسی بر توزیع دوز پرتوها در درمان است. روش بررسی: این مطالعه مروری با کلید واژه...

Journal: :journal of medical signals and sensors 0
keivan jabbari hossein saberi anvar mohammad bagher tavakoli alireza amouheidari

background: the monte carlo method is the most accurate method for simulation of radiation therapy equipment. the linear accelerators are currently the most widely used machines in radiation therapy centers. methods: in this work, a monte carlo modelling of the siemens oncor linear accelerator in 6 mv and 18 mv beams was performed. the results of simulation were validated by measurements in wat...

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