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Fig 2. CTA (MIP, frontal [A and C] and lateral [B and D] views) shows a patient with atherosclerotic disease at the carotid bifurcation and siphon. Correct registration and successful removal of the calcified plaque at the carotid siphon is obtained with both registration techniques. Pulsation leads to incomplete removal at the left carotid bifurcation, more pronounced with SB-BSCTA (A and B), whereas removal of the calcifications at the right carotid bifurcation is almost perfect with both methods. Removal of the lower cervical spine is more complete with SB-BSCTA compared with PR-BSCTA (C and D). The OA (arrow) can be identified with both approaches. The right ECA is occluded.
