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Impact of head movements on morphology and flow in the internal carotid artery after carotid angioplasty and stenting versus endarterectomy  Jan Albert.

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Presentation on theme: "Impact of head movements on morphology and flow in the internal carotid artery after carotid angioplasty and stenting versus endarterectomy  Jan Albert."— Presentation transcript:

1 Impact of head movements on morphology and flow in the internal carotid artery after carotid angioplasty and stenting versus endarterectomy  Jan Albert Vos, MD, A.W. Floris Vos, MD, Matteus A.M. Linsen, MD, J. Tim Marcus, PhD, Timotheus Th.C. Overtoom, MD, Jos C. van den Berg, MD, PhD, Willem Wisselink, MD, PhD  Journal of Vascular Surgery  Volume 41, Issue 3, Pages (March 2005) DOI: /j.jvs Copyright © 2005 The Society for Vascular Surgery Terms and Conditions

2 Fig 1 Magnetic flow magnitude image of a patient after stent placement in the right internal carotid artery. The cross section of the internal carotid artery was delineated by drawing contours on the magnitude images through the cardiac cycle. Journal of Vascular Surgery  , DOI: ( /j.jvs ) Copyright © 2005 The Society for Vascular Surgery Terms and Conditions

3 Fig 2, online only Example of flow curve across the cardiac cycle. The area under the curve (shaded) represents the total cerebropetal volumetric flow rate through this internal carotid artery during one cardiac cycle. Journal of Vascular Surgery  , DOI: ( /j.jvs ) Copyright © 2005 The Society for Vascular Surgery Terms and Conditions

4 Fig 3 Maximum-intensity projection images of a patient after CEA with a dilatation patch (left) and a patient after CAS (right) in the neutral and forward head positions. Images show the carotid artery from the same viewpoint. In the CAS patient, the stent is situated in the ICA, and the distal stent junction is marked (arrowhead). Note the increase in angulation at the distal stent junction when the head is bent forward. The ICA shows a much more global curvature in the CEA patient. In both patients, there was a mild increase rather than a decrease of volumetric flow rate in the ipsilateral ICA in the forward position. CEA, Carotid endarterectomy; CAS, carotid angioplasty and stenting; ICA, internal carotid artery, CCA, common carotid artery; ECA, external carotid artery. Journal of Vascular Surgery  , DOI: ( /j.jvs ) Copyright © 2005 The Society for Vascular Surgery Terms and Conditions

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