Radiation dose reduction
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Strategies of computed tomography radiation dose reduction: justification and optimization
... diagnostic radiation exposure to patients. The risks and benefits from radiation must be carefully considered in all examinations using ionizing radiation, and the principles of justification and ...
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Evaluation of Surface Radiation Dose Reduction and Radiograph Artifact Images in Computed Tomography on the Radiation Convergence Shield by Using Sea-Shells
... surface radiation dose reduction and radiograph artifact images in computed tomography (CT) for the manufactured radiation shields by using ...The radiation convergence shields were ...
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Evaluation of Radiation Dose Reduction from the Automatic Exposure Control Technique in Different Manufactures Multi-Detector Computed Tomography
... the radiation dose reduction using various automatic exposure control (AEC) systems in different manufactures multi-detector computed tomography ...the radiation dose reduction ...
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100 kVp Low-Tube Voltage Abdominal CT in Adults: Radiation Dose Reduction and Image Quality Comparison of 120 kVp Abdominal CT
... However, these studies mainly evaluated hypervascular hepatic lesions, vascular structures, or iodine-filled structures rather than general image quality. In addition, a few in vivo studies of using 100 kVp abdominal CT ...
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Optimization of Brain Computed Tomography Protocols to Radiation Dose Reduction
... the radiation dose of a patient and remain quality of ...exposure dose. The CT dose indicators were CTDIvol and ...the radiation dose of the patient while maintaining quality of ...
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The Study on Design of Customized Radiation Protective Layer for Medical Radiation Dose Reduction
... 한국국제대학교 방사선학과 * , 인제대학교 융합의과학 ** Abstract The fact is that in addition to an increase in social needs that must be managed systematically unnecessary exposure in the field of medical Recent important that the shield has ...
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Feasibility of the 3D Printing Materials for Radiation Dose Reduction in Interventional Radiology
... on radiation pro- tection for patients during an intervention are ...organ dose for each intervention site was evaluated using a monte carlo ...the dose reduction effect of the critical organs ...
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Radiation dose reduction effectiveness of a male gonadal shield during 128-MDCT using Glass Detector
... exposure dose was measured with and without gonadal shield and the obtained images were ...exposure dose was measured ...of reduction in the gonadal exposure dose by ...exposure dose ...
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Improved Image Quality and Radiation Dose Reduction in Liver Dynamic CT Scan with the Protocol Change
... Ⅳ. 고 찰 일반적으로 관전압을 120으로 촬영하던 LDCT 검사를 100 으로 줄이고, SAFIRE를 적용해 영상의 질 변화 없이 방사선 량을 감소시킬 수 있는 방법을 알아보고자 하였다. National council on Radiation protection and Measurements의 보 고에 의하면 1980년대 초 의료용 방사선 피폭은 미국 국민 1인당 0.53 ...
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Feasibility of radiation dose reduction with iterative reconstruction in abdominopelvic CT for patients with inappropriate arm positioning
... calculating the SD. Although several methods have attempted to evaluate image quality or noise such as grey-level co-occurrence matrices or histogram analysis, these methods were also unable to completely represent image ...
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Radiation Dose Reduction without Compromise to Image Quality by Alterations of Filtration and Focal Spot Size in Cerebral Angiography
... This study is limited by its retrospective design. The data from the routine clinical practice that had been implemented for selecting the protocols was retrospectively evaluated. Thus, the respective effects of various ...
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CT radiation dose and radiation reduction strategies
... of radiation- induced carcinogenesis from diagnostic radiology, with a particular emphasis on computed tomography ...(MDCT), radiation doses from CT are now the single largest source of diagnostic ...
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Radiation Exposure Dose Reduction on Upper Gastrointestinal Series
... that radiation dose increases due to improper movement and breath control, when examination is carried out by lack of understanding the overall inspection process for the upper gastrointestinal ...reduce ...
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Reduction of Radiation Dose for Injection of Radioisotope using Shielding Device
... Keywords: Radioisotope, Shielding Device, Radiation Dose Ⅰ . INTRODUCTION 방사선을 이용한 진단 및 치료는 경제성과 편의 성 등의 장점으로 임상에서 광범위하게 실시되고 있다. 그중 핵의학 검사는 방사성동위원소를 추적 자로 인체의 형태학적, 생물학적, 기능적 정보를 획 득하여 질병의 조기 진단 등에 활용하기 ...
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Reduction of Radiation Dose according to Geometric Parameters from Digital Coronary Angiography
... Key Words : Digital coronary angiography, Fluoroscopy, Cine exposure, Dose reduction 요 약 심혈관 촬영 시 선량감소를 위해 실무자가 조절 가능한 기하학적 특성을 살펴보고, 각 특성에 따른 유효선량을 비교 해 보았다. 인체 모형 팬텀을 이용하여 투시촬영과 영화촬영을 시행하였고, 선량의 측정은 심혈관 ...
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The reduction methods of operator’s radiation dose for portable dental X-ray machines
... Radiation protection Introduction Since portable dental X-ray machine was developed to be used in military field, it has been used for forensics at disaster areas and for patients who cannot access care in dental ...
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Mammographic Radiation Dose Measurement
... 촬영할 수도 있다는 것을 고려한다면 매 검사당 환자에게 도 달하는 선량은 적지 않을 것임을 알 수 있다. 이 중 확대촬영 과 정위촬영은 스크리닝이 아니고 진단영역의 검사에 속하는 것으로 스크리닝의 방사선 위해와 같이 취급할 수는 없겠으 나 유방촬영술을 시행하는 종사자로서는 알아 두어야 할 값 이라고 생각된다. 확대촬영의 경우는 좁은 조사야, 상대적으 로 높은 선량을 받게 되는 변연부의 배제 ...
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Reduction of Radiation Exposure Dose of Eyeball and Thyroid for Chest and Abdomen CT Scan
... Because of the significant radiation dose, which causes cataracts and thyroid cancer by the repeated and continuous radiation exposure, for the chest and the abdo[r] ...
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Efficacy of a Protective Grass Shield in Reduction of Radiation Exposure Dose During Interventional Radiology
... Background/Aims : The increasing use of diagnostic and therapeutic interventional radiology calls for greater consideration of radiation exposure risk to radiologist and radiolo[r] ...
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Development and Radiation Shield effects of Dose Reduction Fiber for Scatter ray in CT Exams
... 2 Department of Radiology, Kyungju Dongsan Hospital 3 Buffalo Company Ltd 요 약 본 연구에서는 평균 입자의 크기가 1 ~ 500 ㎛인 산화비스무스 (Bi 2 O 3 ) 와 평균 입자의 크기가 5 ~ 50 nm 인 나 노 황산바륨 (BaSO 4 ) 을 사용하여 선량저감섬유 (DRF; dose reduction ...
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