نتایج جستجو برای: patient dose inwestern and eastern azerbyjan
تعداد نتایج: 16983853 فیلتر نتایج به سال:
A child with aggressive and resistant Kawasaki disease with coronary aneurysm is described. Despite two doses of immune globulin and high dose of aspirin the patient was treated with the third dose of immune globulin. The patient apparently responded to normalization of symptoms and signs, with no more progression of coronary artery abnormalities.
Background: The aim of the study was to estimate the radiation dose during emergency exposure to patients treated with iodine-131 during the isolation period. Materials and Methods: The dose rate from a sample of 192 patients administrated by three different radioactivity of 131I (3.7, 5.55 and 7.4 GBq) was measured, at 1 meter after 1, 24 and 48 hours post dose administration, at three d...
Contralateral breast dose from primary breast irradiation has been implicated in the risk of second breast malignancies. In the radiotherapy departments of Iran, based on oncologist’s and physicist’s viewpoint, a special technique and set-up may be used for treatment of chest wall in mastectomized patient. The present study compared three different breast treatment techniques and set-up use...
ct.scan examinations cause high patient absorbed dose from x-ray ionizing radiation. therefore it is necessary to obtain superficial dose profile in z-line. in this research 11 thermoluminecent dosimeter (tld), after calibration were located on z line perpendicular to slice thickness. ct.scan machines did x-ray exposures. the resultant dose profiles showed gussian shape apperience, which has se...
background: exposure conditions in ct examinations are quite different from conventional xray. in ct examination higher dose is given to patient in comparison with the dose in other diagnostic examinations. in order to calculate organ effective dose in chest ct, monte carlo simulation has been used in this study. materials and methods: the impact survey data were used to determine the parameter...
Abstract Background : Beam-hardening artifacts in CT image set of patient with a hip prosthesis cause difference between dose distributions resulted by treatment planning system (TPS) algorithms and actual dose distribution in patient body. In this study, dose distributions of TPS algorithms were compared with the results of Monte Carlo simulations of Titanium and Steal as a h...
objective(s) as there are conflicting findings regarding the clearance-dose and patient characteristics relationships for valproic acid (vpa), this study was conducted to investigate the relationship between patient demographic characteristics, vpa dosage and the drug clearance in adult iranian patients. materials and methods patients (n= 47) were either on monotherapy with vpa or were under co...
Background and Objectives: The radiation protection of patients in CT examinations is important due to its wide application and high contribution in collective dose of public, and its radiation effects. The purpose of this study was to estimate the mean patient dose indices in chest and abdomen/pelvic examinations as the first step in patient radiation protection process. Materials and Methods...
Introduction: As a valuable imaging modality, Nuclear Medicine (NM) indications is raising in clinical practice. The remained portion administrated radioactive material in patients’ tissues is a critical issue, especially when the procedure is performed in hospitalized patients, where the non-radiation workers present. The aim of this study was evaluation the dose of non-radia...
Introduction: Presence of dental filling material (DFM) such as amalgam in treatment patient with nasopharyngeal cancer (NPC) is common. Streaking artifact Arising from this high density material in computed tomography (scan), may lead to perturbation in dose calculation and dose delivery. Widespread performance of intensity-modulated radiotherapy (IMRT) for NPC using anterior...
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