|Thoracic Aorta||Range of Reported Mean (cm)||Reported SD (cm)||Assessment Method|
|Root (female)||3.50 to 3.72||0.38||CT|
|Root (male)||3.63 to 3.91||0.38||CT|
|Ascending (female, male)||2.86||NA||CXR|
|Mid-descending (female)||2.45 to 2.64||0.31||CT|
|Mid-descending (male)||2.39 to 2.98||0.31||CT|
|Diaphragmatic (female)||2.40 to 2.44||0.32||CT|
|Diaphragmatic (male)||2.43 to 2.69||0.27 to 0.40||CT, arteriography|
Reprinted with permission from Johnston et al. (27).
CT indicates computed tomographic imaging; CXR, chest x-ray; and NA, not applicable.