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Dose to pelvic lymph nodes during brachytherapy of locally advanced cervical cancer with 60Co HDR source.
Brachytherapy
March 2022
Radiation Oncology Research Center, Iran Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran; Department of Physics, University of Surrey, Guildford, UK.
Purpose: This study investigated the correlation between the prescription dose and dose to the Manchester and International Commission on Radiation Units and Measurements-report 38 (ICRU-38) lymphatic trapezoid points during high-dose-rate (HDR) brachytherapy of locally advanced cervical cancer with (Cobalt-60) 60Co .
Methods And Materials: A retrospective study was designed for; patients with locally advanced cervical cancer, treated by external beam radiotherapy and concurrent weekly Cisplatin-based chemotherapy, had no extended parametrial invasion and was treated by tandem-ovoid set, from 2017 to 2020. Groupe Européen de Curiethérapie-European Society for Radiotherapy and Oncology (GEC-ESTRO) based target's volume, ICRU-89 revised version of Manchester points A and B, and ICRU-38 lymph node surrogate points were determined, and their dose was recorded.
Estimating radiation protection factor (RPF) values for a simple surrogate vehicle using the MCNP6.1 code.
Appl Radiat Isot
November 2019
Defense Threat Reduction Agency Nuclear Science and Engineering Research Center (DTRA-NT-NSERC), United States Military Academy Building 753, West Point, NY, 10996, USA.
Computational and experimental estimates of radiation protection factor (RPF) values are of significant interest to various defense-related organizations. Values of the operational quantity of ambient dose equivalent were computed, using version 6.1 of the Monte Carlo N-Particle® code (MCNP6.
View Article and Find Full Text PDF[Target volume concepts in radiotherapy and their implications for imaging].
Radiologe
August 2018
Heidelberg Institute for Radiation Oncology (HIRO), Nationales Forschungszentrum für Radioonkologie, Im Neuenheimer Feld 280, 69120, Heidelberg, Deutschland.
Clinical Issue: Successful radiotherapy requires precise localization of the tumor and requires high-quality imaging for developing a treatment plan.
Standard Treatment: Irradiation of the tumor region, including a safety margin.
Treatment Innovations: The target volume consists of the gross tumor volume (GTV) containing visible parts of the tumor, the clinical target volume (CTV) covering the GTV plus invisible tumor extensions, and the planning target volume (PTV) to account for uncertainties.
Neutron Metrology in the United States-Where We've Been, Where We Are Now and What We Need to Do Moving Forward.
Health Phys
November 2017
*ICRU, 7910 Woodmont Ave., Suite 400 Bethesda, MD 20814.
Neutron metrology in the United States must be based on traceability to standards maintained by the National Institute of Standards and Technology (NIST). This article reviews the history of NIST's neutron-metrology efforts, the loss of those capabilities, and attempts to restore them. Recommendations are made to ensure that neutron dosimetry performed in the United States meets the requirements set forth by the International Standards Organization and other international and national authorities.
View Article and Find Full Text PDFSafety of adjuvant intensity-modulated postoperative radiation therapy in endometrial cancer: Clinical data and dosimetric parameters according to the International Commission on Radiation Units (ICRU) 83 report.
Rep Pract Oncol Radiother
November 2015
Department of Radiation Oncology, Centre de Lutte Contre le Cancer Oscar Lambret, 3 rue Combemale, 59020 Lille cedex, France.
Aim: To report a single-institution experience using postoperative pelvic Intensity Modulation Radiation Therapy (IMRT) using tomotherapy accelerators (TA) in postoperative endometrial cancer (EC) regarding ICRU 83 recommendations.
Background: IMRT in gynecological malignancies provides excellent dosimetric data, lower rates of adverse events and clinical data similar to historical series.
Material And Methods: Seventy-six patients with EC were postoperatively treated with adjuvant IMRT using TA.
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