Vessels
Aorta
Ascending (A1)
Formula
X-ray computed tomography
A1= (0.720 x age) + 11.55mm
A1 : 1 cm over the origin of ascending aorta
Reference
Fitzgerald SW, Donaldson JS, Poznanski AK. Pediatric thoracic aorta: Normal measurements determined with CT. Radiology 1987; 165:667-668
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