Radiology
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To determine the energy levels that provide optimal imaging of thoracic circulation at dual-energy computed tomographic (CT) angiography with reduced iodine load in comparison with a standard technique. ⋯ http://radiology.rsna.org/lookup/suppl/doi:10.1148/radiol.12120195/-/DC1.
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To evaluate whether quantitative diffusion-tensor tractography can show abnormalities in long association tracts of subjects with symptoms after traumatic brain injury without any visible signs of intracranial or intraparenchymal abnormalities of obvious traumatic origin at routine magnetic resonance (MR) imaging and to determine the number and type of these abnormalities. ⋯ http://radiology.rsna.org/lookup/suppl/doi:10.1148/radiol.12112570/-/DC1.
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To (a) use a new second-generation wide-volume 320-detector row computed tomographic (CT) scanner to explore optimization of radiation exposure in coronary CT angiography in an unselected and consecutive cohort of patients referred for clinical purposes and (b) compare estimated radiation exposure and image quality with that from a cohort of similar patients who underwent imaging with a previous first-generation CT system. ⋯ http://radiology.rsna.org/lookup/suppl/doi:10.1148/radiol.13122621/-/DC1.