Investigation of Radiation Dose for Lower Tube Voltage CT Using Automatic Exposure Control
نویسندگان
چکیده
منابع مشابه
Radiation Dose Reduction via Sinogram Affirmed Iterative Reconstruction and Automatic Tube Voltage Modulation (CARE kV) in Abdominal CT
OBJECTIVE To evaluate the feasibility of sinogram-affirmed iterative reconstruction (SAFIRE) and automated kV modulation (CARE kV) in reducing radiation dose without increasing image noise for abdominal CT examination. MATERIALS AND METHODS This retrospective study included 77 patients who received CT imaging with an application of CARE kV with or without SAFIRE and who had comparable previou...
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PURPOSE To retrospectively determine whether the combined use of automatic tube voltage selection (ATVS) and automatic tube current modulation (ATCM) can effectively reduce radiation dose at contrast material-enhanced liver computed tomography (CT) while maintaining acceptable image quality compared with the use of ATCM alone. MATERIALS AND METHODS This study was approved by an institutional ...
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BACKGROUND AND PURPOSE Z-axis automatic exposure control (AEC) technique automatically adjusts tube current based on size of body region scanned. The purpose of the current study was to compare diagnostic acceptability, noise, and radiation exposure of multidetector row CT (MDCT) of neck performed with z-axis AEC and with fixed current. MATERIALS AND METHODS Two study groups of 26 patients ea...
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OBJECTIVE To assess the effects of radiation dose reduction in the chest CT using a weight-based adjustment of the automatic exposure control (AEC) technique. MATERIALS AND METHODS With Institutional Review Board Approval, 60 patients (mean age, 59.1 years; M:F = 35:25) and 57 weight-matched patients (mean age, 52.3 years, M:F = 25:32) were scanned using a weight-adjusted AEC and non-weight-a...
متن کاملDevelop Optimal Tube Voltage and Tube Current Chart for Radiation Reduction in Pediatric CT Examinations
Many different techniques and researches on reducing the radiation dose for computed tomography (CT) examinations have been reported and developed in recent 30 years. However, most those technologies are not practical enough to enable them to be directly and easily implemented in clinic real applications because there is no directly relationship between those techniques and the actual CT scanni...
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ژورنال
عنوان ژورنال: Japanese Journal of Radiological Technology
سال: 2015
ISSN: 0369-4305,1881-4883
DOI: 10.6009/jjrt.2015_jsrt_71.4.332