نتایج جستجو برای: intravascular brachytherapy

تعداد نتایج: 24513  

Journal: :International journal of advanced research 2023

Background: Toxicity assessment is done by comparing HDR brachytherapy with ICRU point doses. D2cc doses of OAR in slightly more than Objectives:The primary objective volumetric dose and toxicity comparison between brachytherapy. Materials Methods: It a prospective comparative study. The total number patients enrolled the study 20. After obtaining informed consent, then were All diagnosed H.P.E...

Journal: :Head & neck 2007
Jergin Chen Lisa Pappas John H Moeller Jim Rankin Pramod K Sharma Brandon G Bentz L Christine Fang John K Hayes Dennis C Shrieve Ying J Hitchcock

BACKGROUND We reviewed the outcomes of oropharyngeal squamous cell carcinoma treated with external beam radiation and interstitial brachytherapy. METHODS Ninety patients with squamous cell carcinoma of the oropharynx were treated with interstitial brachytherapy at the University of Utah between 1984 and 2001. Seventy-two patients received external beam radiotherapy (EBRT) followed by brachyth...

2016
Haeyoung Kim Joo Young Kim Juree Kim Won Park Young Seok Kim Hak Jae Kim Yong Bae Kim

OBJECTIVE The aim of the present study was to acquire information on brachytherapy resources in Korea through a national survey of radiation oncologists. METHODS Between October 2014 and January 2015, a questionnaire on the current status of brachytherapy was distributed to all 86 radiation oncology departments in Korea. The questionnaire was divided into sections querying general information...

Journal: :Circulation 2002
Vivek M Shah Gary S Mintz Sue Apple Neil J Weissman

BACKGROUND Late stent malapposition has been reported to be an abnormal finding after vascular brachytherapy and, possibly, implantation of drug-eluting stents. It can only be detected if intravascular ultrasound (IVUS) is performed at follow-up. However, the "background" frequency of late stent malapposition after bare-metal stent implantation is not known. METHODS AND RESULTS We studied 206...

2003
Alain Gerbaulet Jean-Jacques Mazeron Dan Ash

On the other hand, brachytherapy combined with external beam irradiation is not a good therapeutic approach in advanced disease because, in this case, the brachytherapy target volume would be by definition identical for a primary brachytherapy and/or for a brachytherapy boost. (8,11) For any tumour size, the combination of external beam irradiation and brachytherapy boost yields worse results t...

2017
Peter F. Orio Cathryn Yashar Dan Petereit Firas Mourtada Ann Klopp David Gaffney Steven Frank

The American Brachytherapy Society (ABS) and its membership seeks to benefit patients by promoting the highest possible standard for brachytherapy practice, support health care professionals through the encouragement of state of the art technology and education, promote clinical and laboratory research, and advocate for the socioeconomic aspects of brachytherapy. The 2017 ABS Annual Meeting too...

Journal: :Medical physics 2013
Dorin Todor Stewart Becker Colin G Orton

Partial breast irradiation (PBI) by either brachytherapy or external beam (EB) therapy is frequently used for the treatment of certain populations of breast cancer patients. The claim that brachytherapy is better than EB for PBI is the Proposition debated here. Advantages claimed for brachytherapy for PBI include: • brachytherapy is associated with smaller treatment volumes, lower integral dose...

Ahad Ollah Ezzati, Hossein Mousavie Anijdan Seyed Rabi Mahdavi,

Introduction In this study, we aimed to calculate dose enhancement factor (DEF) for gold (Au) and iron (Fe) nanoparticles (NPs) in brachytherapy and teletherapy, using Monte Carlo (MC) method. Materials and Methods In this study, a new algorithm was introduced to calculate dose enhancement by AuNPs and FeNPs for Iridium-192 (Ir-192) brachytherapy and Cobalt-60 (Co-60) teletherapy sources, using...

آقامیری, محمودرضا , باغانی, حمیدرضا , حسینی دقیق, محسن , مهدوی, ربیع ,

Background and purpose: Dose calculations in trachea HDR brachytherapy treatment planning systems are greatly based on TG-43 protocol in which, all materials including air inside trachea are treated the same as water. The aim of this study was to survey the effect of air on dose calculations of Flexiplan treatment planning system in trachea HDR brachytherapy. Materials and methods: To ev...

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