Neurofibromatosis Type 1 Complicated by Atypical Coarctation of the Thoracic Aorta
Figure 1
(a) Continuous wave Doppler flow pattern across the coarcted segment, showing systolic flow velocity of 3.4 m/s. V1: flow proximal to the coarctation. V2: flow distal to the coarctation. (b) Pulsed Doppler evaluation of the abdominal aorta demonstrating the decrease in the acceleration and deceleration slope. (c) Aortogram of the descending aorta (left anterior oblique view) showing a 5 cm long hourglass-shaped thoracic coarctation at the Th5-to-Th6 level with the narrowest section having a diameter of 4 mm as well as a large internal thoracic artery.
