نتایج جستجو برای: 192ir flexisource

تعداد نتایج: 181  

Journal: :Medical physics 2009
Philippe Levêque Quentin Godechal Anne Bol François Trompier Bernard Gallez

PURPOSE Various tools are currently available for dose reconstruction in individuals after accidental exposure to ionizing radiation. Among the available biological analyses, Monte Carlo simulations, and biophysical methods, such as electron paramagnetic resonance (EPR), the latter has proved its usefulness for retrospective dosimetry. Although EPR spectroscopy is probably the most sensitive te...

2011
Jean-Philippe Pignol Brian M Keller Ananth Ravi

BACKGROUND Breast cancers are more frequently diagnosed at an early stage and currently have improved long term outcomes. Late normal tissue complications induced by adjuvant radiotherapy like secondary cancers or cardiomyopathy must now be avoided at all cost. Several new breast radiotherapy techniques have been developed and this work aims at comparing the scatter doses of internal organs for...

2015
Evaggelos Pantelis Vassiliki Peppa Vasileios Lahanas Eleftherios Pappas Panagiotis Papagiannis

This work presents BrachyGuide, a brachytherapy-dedicated software tool for the automatic preparation of input files for Monte Carlo simulation from treatment plans exported in DICOM RT format, and results of calculations performed for its benchmarking. Three plans were prepared using two computational models, the image series of a water sphere and a multicatheter breast brachytherapy patient, ...

Journal: :Asian Pacific journal of cancer prevention : APJCP 2014
Bidhu Kalyan Mohanti Puja Sahai Alok Thakar Kapil Sikka Suman Bhasker Atul Sharma Seema Sharma Sudhir Bahadur

AIMS To describe our institutional experience with high dose rate (HDR) interstitial brachytherapy (IBT) compared with previously reported results on the low dose rate (LDR) practice for head and neck cancer. MATERIALS AND METHODS Eighty-four patients with oral cavity (n=70) or oropharyngeal cancer (n=14) were treated with 192Ir HDR-IBT. Seventy-eight patients had stage I or II tumour. The pa...

Journal: :Praxis der Informationsverarbeitung und Kommunikation 2013
Josef Spillner Johannes Schad Stephan Zepezauer

Following the Everything-as-a-Service paradigm, digital and physical assets such as software, data and hardware resources can be offered and delivered as services by their respective owners. The rise of service-oriented personal cloud computing requires new techniques for users to perform asset discovery, exchange and management. These techniques must be easy to use and yet powerful enough to r...

2017
Ivan M. Buzurovic Desmond A. O’Farrell Mandar S. Bhagwat Jorgen L. Hansen Thomas C. Harris Scott Friesen Robert A. Cormack Phillip M. Devlin

PURPOSE In this study, we present the treatment of the psoriatic nail beds of patients refractory to standard therapies using high-dose-rate (HDR) brachytherapy. The custom-made micro applicators (CMMA) were designed and constructed for radiation dose delivery to small curvy targets with complicated topology. The role of the HDR brachytherapy treatment was to stimulate the T cells for an increa...

Journal: :Circulation 2003
Edouard Cheneau Michael C John Jana Fournadjiev Rosanna C Chan Han-Soo Kim Laurent Leborgne Rajbabu Pakala Hamid Yazdi Andrew E Ajani Renu Virmani Ron Waksman

BACKGROUND Late total occlusion after vascular brachytherapy (VBT) continues to be a serious complication. Delayed reendothelialization was suggested as a pivotal cause, but the time course for complete healing is unknown. METHODS AND RESULTS Seventy-two rabbit iliac arteries underwent stent implantation and were treated with gamma-radiation using 192Ir. The prescribed doses were 0 Gy (contro...

Journal: :Medical physics 2010
Yun Yang Mark J Rivard

PURPOSE Both the AccuBoost D-shaped and round applicators have been dosimetrically characterized and clinically used to treat patients with breast cancer. While the round applicators provide conformal dose coverage, under certain clinical circumstances the breast skin dose may be higher than preferred. The purpose of this study was to modify the round applicators to minimize skin dose while not...

Journal: :Journal of Analytical Oncology 2022

The aim of this study was to investigate the antitumor efficacy radiodynamic therapy (RDT) with a chlorin-based photosensitizer (PS) in an vivo experiment.
 Material and Methods: performed 35 white outbred rats weighing 180±30 g. Subcutaneously transplanted Pliss lymphosarcoma (PLS) used as tumor model. Chlorin-based PS «Photolon» (RUE «Belmedpreparaty», Republic Belarus) injected intraven...

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