Figure 3
Case 3: Prenatal image of DAA. (A) Color blood flow demonstrated the right aortic arch(RAA) and left aortic arch(LAA), forming a classic ‘O’ shape. (B-C ) The image of HD-flow render mode and STIC demonstrated DAA encircling esophagus and trachea completely. (D ) The computed tomography angiography of DAA demonstrated the RAA and LAA. L: left, R: right, Ce: cephalic, Ca: caudal. A: abdominal, P: spinal