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Effect of contrast material (Levovist) infusion on peak systolic velocity in middle cerebral artery using transcranial color-coded duplex sonography 

Published byDerrick Shields Modified over 6 years ago

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Presentation on theme: "Effect of contrast material (Levovist) infusion on peak systolic velocity in middle cerebral artery using transcranial color-coded duplex sonography "— Presentation transcript:

1 Effect of contrast material (Levovist) infusion on peak systolic velocity in middle cerebral artery using transcranial color-coded duplex sonography  Hirotoshi Hamaguchi, MD, PhD, Fumio Kanda, MD, PhD, Ichiro Imafuku, MD, Masanari Kunimoto, MD, PhD, Kazuo Chihara, MD, PhD  Journal of Stroke and Cerebrovascular Diseases  Volume 13, Issue 6, Pages (November 2004) DOI: /j.jstrokecerebrovasdis Copyright © 2004 National Stroke Association Terms and Conditions

2 Figure 1 Comparison of maximum PSV in MCAs before and after contrast agent infusion in the control and stenosis groups. In both groups, postcontrast PSV was significantly higher than precontrast PSV (P < .05). Journal of Stroke and Cerebrovascular Diseases  , DOI: ( /j.jstrokecerebrovasdis ) Copyright © 2004 National Stroke Association Terms and Conditions

3 Figure 2 MRA and TCCD images in a control patient (A) and a patient with MCA stenosis (B). (A) MRA revealing normal MCAs. Precontrast PSV was 90.3 cm/sec; postcontrast PSV, 113 cm/sec. (B) MRA revealing left MCA stenosis. Precontrast PSV was 138 cm/sec; postcontrast PSV, 203 cm/sec. Journal of Stroke and Cerebrovascular Diseases  , DOI: ( /j.jstrokecerebrovasdis ) Copyright © 2004 National Stroke Association Terms and Conditions

4 Figure 3 Comparison of the PSV increase rates in MCA between the control group and the stenosis group. Increase rates were higher in the stenosis group than in the control group (P < .05). Journal of Stroke and Cerebrovascular Diseases  , DOI: ( /j.jstrokecerebrovasdis ) Copyright © 2004 National Stroke Association Terms and Conditions

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