Evaluation of tube current modulation programms for the optimization of scan protocols in computed tomography
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study of cohesive devices in the textbook of english for the students of apsychology by rastegarpour
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Size‐based protocol optimization using automatic tube current modulation and automatic kV selection in computed tomography
Size-based diagnostic reference ranges (DRRs) for contrast-enhanced pediatric abdominal computed tomography (CT) have been published in order to establish practical upper and lower limits of CTDI, DLP, and SSDE. Based on these DRRs, guidelines for establishing size-based SSDE target levels from the SSDE of a standard adult by applying a linear correction factor have been published and provide a...
متن کاملOptimization of Parameters in 16-slice CT-scan Protocols for Reduction of the Absorbed Dose
Introduction In computed tomography (CT) technology, an optimal radiation dose can be achieved via changing radiation parameters such as mA, pitch factor, rotation time and tube voltage (kVp) for diagnostic images. Materials and Methods In this study, the brain, abdomen, and thorax scaning was performed using Toshiba 16-slice scannerand standard AAPM and CTDI phantoms. AAPM phantom was used for...
متن کاملAssessment of an organ‐based tube current modulation in thoracic computed tomography
Recently, specific computed tomography (CT) scanners have been equipped with organ-based tube current modulation (TCM) technology. It is possible that organ-based TCM will replace the conventional dose-reduction technique of reducing the effective milliampere-second. The aim of this study was to determine if organ-based TCM could reduce radiation exposure to the breasts without compromising the...
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ژورنال
عنوان ژورنال: Radiatsionnaya Gygiena = Radiation Hygiene
سال: 2019
ISSN: 2409-9082,1998-426X
DOI: 10.21514/1998-426x-2019-12-1-104-114