نتایج جستجو برای: absorbed dose

تعداد نتایج: 326013  

2015
Alireza Nikoofar Zohreh Hoseinpour Seied Rabi Mahdavi Hadi Hasanzadeh Mostafa Rezaei Tavirani

BACKGROUND The high-dose-rate (HDR) brachytherapy might be an effective tool for palliation of dysphagia. Because of some concerns about adverse effects due to absorbed radiation dose, it is important to estimate absorbed dose in risky organs during this treatment. OBJECTIVES This study aimed to measure the absorbed dose in the parotid, thyroid, and submandibular gland, eye, trachea, spinal c...

Background and Objectives: Entrance of high concentration of Radon gas through drinking water or inhaling Radon gas released into the air from water can cause lung cancer. This study aimed to measure Radon gas dissolved in groundwater and to determine the annual effective absorbed dose of Radon gas in Zarand city. Materials and Methods: This descriptive study was done on 48 randomly selected r...

ژورنال: سنجش و ایمنی پرتو 2020

External radiotherapy is used for treatment of various types of cancers. Due to the impossibility of measuring the absorbed dose delivered to different organs during irradiation, treatment planning systems (TPSs) have been utilized for calculation of absorbed dose before a radiotherapy procedure. Thus, the accuracy and precession of the TPS is essential.The aim of this study is investigation of...

Journal: :Japanese Journal of Radiological Technology 1996

Journal: :Journal of Nuclear Science and Technology 2002

Journal: :asia oceania journal of nuclear medicine and biology 0
mojdeh naderi department of chemistry, university of zanjan, zanjan, iran samaneh zolghadri nuclear science and technology research institute (nstri), tehran, iran hassan yousefnia nuclear science and technology research institute (nstri), tehran, iran ali ramazani department of chemistry, university of zanjan, zanjan, iran amir reza jalilian nuclear science and technology research institute (nstri), tehran, iran

objective(s): gallium-68 dota-dphe1-tyr3-octreotide (68ga-dotatoc) has been applied by several european centers for the treatment of a variety of human malignancies. nevertheless, definitive dosimetric data are yet unavailable. according to the society of nuclear medicine and molecular imaging, researchers are investigating the safety and efficacy of this radiotracer to meet food and drug admin...

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2016
Andor F van den Hoven Charlotte E N M Rosenbaum Sjoerd G Elias Hugo W A M de Jong Miriam Koopman Helena M Verkooijen Abass Alavi Maurice A A J van den Bosch Marnix G E H Lam

UNLABELLED Randomized controlled trials are investigating the benefit of hepatic radioembolization added to systemic therapy in the first- and second-line treatment of patients with colorectal liver metastases (CRLM). Remarkably, administered activity may still be suboptimal, because a dose-response relationship has not been defined. The purpose of this study was to characterize the relationshi...

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