نتایج جستجو برای: skin dose

تعداد نتایج: 493200  

M Papie R Faghihi S Sina

Introduction: Accelerated Partial Breast Irradiation (APBI) is an effective treatment for breast carcinomas because of its limited number of fractions. Strut-adjusted volume implant (SAVI) is a HDR brachytherapy applicator to deliver the prescription dose with good PTV coverage and acceptable dose to skin, chest wall and organ at risks. Acceptable clinical outcomes depend on a...

Journal: :Progress in Nuclear Science and Technology 2011

Journal: :Oncology reports 2015
Lin Dang Yan Wang Yadong Xue Lei He Yuzhen Li Jikui Xiong

Skin cancer is one of the most common types of malignancy in the world. UV radiation is known as the primary environmental carcinogen responsible for skin cancer development. However, UV radiation is a ubiquitous substance existing in the environment and the physiological effect of UV radiation is consistently ignored. Therefore, in the present study, the physiological effect of UV radiation on...

2018
Lilie Wang Anthony J. Cmelak George X. Ding

Radiation dermatitis during radiotherapy is correlated with skin dose and is a common clinical problem for head and neck and thoracic cancer patients. Therefore, accurate prediction of skin dose during treatment planning is clinically important. The objective of this study is to evaluate the accuracy of skin dose calculated by a commercial treatment planning system (TPS). We evaluated the accur...

Journal: :middle east journal of cancer 0
milad baradaran-ghahfarokhi mechanical engineering department, school of engineering, shiraz university, shiraz, iran mohammad amin mosleh-shirazi physics unit, department of radiotherapy and oncology, namazi hoapital, shiraz university of medical sciences, shiraz, iran reza faghihi mechanical engineering department, school of engineering, shiraz university, shiraz, iran mohammad hadi bagheri department of radiology and medical imaging research center, shiraz university of medical sciences, shiraz, iran kamal hadad mechanical engineering department, school of engineering, shiraz university, shiraz, iran ali alavian-ghavanini mechanical engineering department, school of engineering, shiraz university, shiraz, iran

background : limited studies are available on the calculation of radiation exposure and its associated risks for people in contact with patients who have been treated with permanent prostate brachytherapy. in this study the changes in the radiation exposure were calculated in different stages of the bladder fullness in prostate seed brachytherapy. methods :magnetic resonance images of three pat...

2016
Shokouhozaman Soleymanifard Seyed Amir Aledavood Atefeh Vejdani Noghreiyan Mahdi Ghorbani Farideh Jamali David Davenport

AIM OF THE STUDY Accurate skin dose assessment is necessary during breast radiotherapy to assure that the skin dose is below the tolerance level and is sufficient to prevent tumour recurrence. The aim of the current study is to measure the skin dose and to evaluate the geometrical/anatomical parameters that affect it. MATERIAL AND METHODS Forty patients were simulated by TIGRT treatment plann...

Journal: :Physics in medicine and biology 2002
Tsang Cheung Martin J Butson Peter K N Yu

Assessment of skin dose delivered to patients from radiotherapy x-ray beams should be performed both inside and outside the prescribed treatment fields. A multilayer Gafchromic film detector which has high sensitivity for detection of radiation can be used to measure skin dose in a two-dimensional map over the skin surface if required. This is an advantage over other detectors, which only provi...

Journal: :Onkologie 2012
Naoki Takashima Tomoki Kimura Naohiro Watanabe Takumi Umemura Shinya Katsuno Keiko Arakawa Masahiro Fukatsu Naoto Nakamura Osamu Nishiyama Kensuke Kataoka Yasuhiro Kondoh Hiroyuki Taniguchi

BACKGROUND Severe skin rash as toxicity of erlotinib has been reported in relation to better response and survival. However, some patients require dose reduction due to skin toxicities, and their prognosis remains uncertain. We retrospectively evaluated the clinical course of non-small cell lung cancer patients receiving erlotinib at a reduced dose because of skin rash. PATIENTS AND METHODS A...

Journal: :EuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology 2016
Sharon M Wilson Ananth M Prasan Amy Virdi Marissa Lassere Glenn Ison David R Ramsay James C Weaver

AIMS The aim of this study was to evaluate whether a real-time (RT) colour pictorial radiation dose monitoring system reduces patient skin and total radiation dose during coronary angiography and intervention. METHODS AND RESULTS Patient demographics, procedural variables and radiation parameters were recorded before and after institution of the RT skin dose recording system. Peak skin dose a...

Journal: :Polish Journal of Medical Physics and Engineering 2020

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