2018
DOI: 10.1590/0100-3984.2017.0136
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Radiation dose reduction in chest dual-energy computed tomography: effect on image quality and diagnostic information

Abstract: ObjectiveTo determine whether dual-energy computed tomography (DECT) of the chest can be performed at a reduced radiation dose, with an emphasis on images generated with post-processing techniques.Materials and MethodsIn 21 patients undergoing DECT of the chest in a dual-source scanner, an additional image series was acquired at a reduced radiation dose. Four thoracic radiologists assessed both image series for image quality, normal thoracic structures, as well as pulmonary and mediastinal abnormalities, on vi… Show more

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Cited by 9 publications
(1 citation statement)
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“…e concept of dual-energy CT was primarily nominated in 1973 [7,8] and reemerged in the field of clinical radiology with the current technical advances in CT. Although the concept of dual-energy computed tomography (DECT) is almost as old as the CT technology itself, DECT initially required substantially higher radiation doses (nearly two times higher than that employed in singleenergy CT) and presented problems associated with spatial misregistration of the two different kV image datasets between the two separate acquisitions [9,10]. In this regard, dual-energy CT introduced as a first generation dual-source CT system which can develop material variation by using two different X-ray energy spectra [7,11].…”
Section: Introductionmentioning
confidence: 99%
“…e concept of dual-energy CT was primarily nominated in 1973 [7,8] and reemerged in the field of clinical radiology with the current technical advances in CT. Although the concept of dual-energy computed tomography (DECT) is almost as old as the CT technology itself, DECT initially required substantially higher radiation doses (nearly two times higher than that employed in singleenergy CT) and presented problems associated with spatial misregistration of the two different kV image datasets between the two separate acquisitions [9,10]. In this regard, dual-energy CT introduced as a first generation dual-source CT system which can develop material variation by using two different X-ray energy spectra [7,11].…”
Section: Introductionmentioning
confidence: 99%