Figure 1:
Case 1: Prenatal image of RAA with ALSA using 2D ultrasound and 3D ultrasound. (A) 2D ultrasound demonstrating the ā€œUā€-shaped VR. (B) Color blood flow demonstrating the ā€œUā€-shaped VR and aberrant left subclavian artery(ALSA). (C) The imaging of VR and ALSA was shown using HD-flow render mode and STIC. (D) 2D ultrasound demonstrating the ALSA with Descending aorta long axis view. (E) Color blood flow demonstrating the ALSA. (F) The imaging of RAA and ALSA was shown using HD-flow render mode and STIC. L: left, R: right, Ce: cephalic, Ca: caudal. A: abdominal, P: spinal