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To evaluate the impact of a “double-low“ imaging protocol (low tube voltage and low contrast agent concentration) on image quality and radiation dose for aortic computed tomography (CT) angiography (CTA).This was a prospective study of 72 patients undergoing aortic CTA. They were randomised to the double-low and conventional CT (control) groups (n=36/group). Axial imaging was performed in the study...
To assess diffusion changes in the remote white matter and areas of white matter with cerebral artery obstruction without magnetic resonance imaging (MRI) evidence of brain parenchymal abnormalities using high b-value diffusion tensor imaging (DTI).A total of 34 patients with severe unilateral stenosis (≥75%) or occlusion of the middle cerebral artery (MCA) without abnormal brain parenchymal signals...
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