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Images A- B: Ultrasound images of CCA demonstrating an echogenic intimal flap and reverse circulation in the false lumen.
Image C: Left common artery with a slight increase in PSV - 138cm/s.
Image D: Duplex ultrasound of false lumen in CCA demonstrates damped biphasic flow with atypical spectral wave, VPS low (43cm/seg) and reverse protodiastole.