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Figure 1: (a) Duplex scan on first follow-up after discharge: longitudinal brightness-modulated (B-mode) scan shows a mobile floating plaque. (b) Follow-up duplex scan 6 months later: transverse power Doppler flow image (PDFI) scan shows incomplete division of lumen. (c) Follow-up duplex scan 6 months later: transverse PDFI scan shows completely divided lumen. (d) Magnetic resonance time of flight angiography shows divided lumen of common carotid artery

Figure 1: (a) Duplex scan on first follow-up after discharge: longitudinal brightness-modulated (B-mode) scan shows a mobile floating plaque. (b) Follow-up duplex scan 6 months later: transverse power Doppler flow image (PDFI) scan shows incomplete division of lumen. (c) Follow-up duplex scan 6 months later: transverse PDFI scan shows completely divided lumen. (d) Magnetic resonance time of flight angiography shows divided lumen of common carotid artery