نتایج جستجو برای: Radiotherapy, Image-Guided

تعداد نتایج: 516937  

Journal: :journal of biomedical physics and engineering 0
s parande a esmaili torshabi

background: medical image interpolation is recently introduced as a helpful tool to obtain further information via initial available images taken by tomography systems. this information may be useful for better diagnosis of possible lesions or better tumor delineation at radiation treatment. to do this, deformable image registration algorithms are mainly utilized to perform image interpolation ...

Journal: :medical journal of islamic republic of iran 0
jalal arabloo health management and economics research center, iran university of medical sciences & department of health management and economics, school of public health, tehran university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences) pejman hamouzadeh department of health management and economics, school of public health, tehran university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences) seyedeh maryam mousavinezhad tehran university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences) mohammadreza mobinizadeh young researchers and elites club, science and research branch, islamic azad university, tehran, iran.سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch) alireza olyaeemanesh national institute for health research, tehran university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences) morvarid pooyandjoo tehran university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences)

background: image-guided radiotherapy used multiple imaging during the radiation therapy course to improve the precision and accuracy of health care provider's treatment. objectives: this study aims to assess the safety, effectiveness and economic aspects of image-guided radiation therapy for decision-making about this technology in iran. methods: in this study, the most important medical datab...

Journal: :iranian journal of radiation research 0
m. zehtabian medical radiation department and medical imaging research center, school of engineering, shiraz university, shiraz, iran r. faghihi medical radiation department and medical imaging research center, school of engineering, shiraz university, shiraz, iran m.a. mosleh-shirazi center for research in medical physics and biomedical engineering and physics unit, radiotherapy department, namazi hospital, shiraz university of medical sciences, shiraz, iran a.r. shakibafard radiology department, shiraz university of medical sciences, shiraz, iran m. mohammadi medical physics department, royal adelaide hospital, adelaide, australia m. baradaran-ghahfarokhi medical physics and medical engineering department, school of medicine, isfahan university of medical sciences, isfahan, iran

background: the aim of this work was to study the feasibility of constructing a fast thorax model suitable for simulating lung motion due to respiration using only one ct dataset. materials and methods: for each of six patients with different thorax sizes, two sets of ct images were obtained in single-breath-hold inhale and exhale stages in the supine position. the ct images were then analyzed ...

Journal: :iranian journal of radiation research 0
m. mohammadi deptartment of medical physics, faculty of medicine, hamadan university of medical sciences, hamadan, iran sh. nabavi deptartment of computer engineering, islamic azad university, hamadan branch, hamadan, iran

background: to reduce uncertainties of patient positioning, the computerized tomography (ct) images acquired at the treatment planning time can be compared with those images obtained during radiation dose delivery. this can be followed during dose delivery procedure as image guided radiotherapy (igrt) to verify the prescribed radiation dose delivery to the target as well as to monitor radiation...

Journal: :Deutsches Aerzteblatt Online 2011

Background: Image-guided radiotherapy used multiple imaging during the radiation therapy course to improve the precision and accuracy of health care provider's treatment. Objectives: This study aims to assess the safety, effectiveness and economic aspects of image-guided radiation therapy for decision-making about this technology in Iran. Methods: In this study, the most important med...

Hajareh Ghaderzadeh Hamed Ghaffari Mahdieh Afkhami, Mohammad Haghparast Seyed Rabi Mahdavi

Introduction: The accuracy of the patient setup and tumor location are major factors that determine the efficacy of radiotherapy treatment planning. In the prostate radiotherapy, reproducibility of the prostate location for each treatment fraction is problematic owing to varying filling of the rectum and bladder. According to this, the aim of this study was to measure the inte...

Journal: :The British Journal of Radiology 2019

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