Figure 1From: Normal values for aortic diameters in children and adolescents – assessment in vivo by contrast-enhanced CMR-angiographySites of measurement. Aortic sinus (AS), sino-tubular junction (STJ), ascending aorta (AA), proximal to the origin of the brachiocephalic artery (BCA), first transverse segment (T1), second transverse segment (T2), isthmic region (IR), descending aorta (DA), thoracoabdominal aorta at the level of diaphragm (D).Back to article page