Digital images of the model after implantation of a self-expanding carotid stent covering the ICA curve and the bifurcation as a basis for the measurement.

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Presentation transcript:

Digital images of the model after implantation of a self-expanding carotid stent covering the ICA curve and the bifurcation as a basis for the measurement of parameters for quantification of stent conformity.A and B, The dehiscence factor is calculated by d... Digital images of the model after implantation of a self-expanding carotid stent covering the ICA curve and the bifurcation as a basis for the measurement of parameters for quantification of stent conformity.A and B, The dehiscence factor is calculated by dividing the areas of dehiscence (highlighted in B) by the area covered by the stent.C, Measurement of the ICA offset as the maximal deviation of ICA tortuosity perpendicular to the CCA midaxis (upper arrows). Definition of the CCA-ICA angle as the angulation (asterisk) between the CCA midaxis and the midaxis of the initial ICA segment up to a level of 1.5 cm above a bifurcational 0-level is indicated by a line through the midpoint of the external carotid artery origin.D, Measurement of the ICA angle (asterisk) between the tangents through the midaxes of both limbs of the ICA curve. Norimitsu Tanaka et al. AJNR Am J Neuroradiol 2004;25:604-607 ©2004 by American Society of Neuroradiology