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Multiple Diameters Calculation
Normal Adult Thoracic Aortic Diameters
3.50 to 3.72
3.63 to 3.91
Ascending (female, male)
2.45 to 2.64
2.39 to 2.98
2.40 to 2.44
2.43 to 2.69
0.27 to 0.40
Sex Differences in Aortic Root Dimensions in Adults
Absolute Values (cm)
Indexed Values (cm/m2)
Sinuses of Valsalva
Proximal Ascending Aorta
Adapted from Roman et al.
From: 2010 ACCF/AHA/AATS/ACR/ASA/SCA/SCAI/SIR/STS/SVM
Guidelines for the Diagnosis and Management of Patients With Thoracic Aortic Disease: Executive Summary
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Haycock GB, Schwartz GJ, Wisotsky DH. Geometric method for measuring body surface area: A height weight formula validated in infants, children and adults. The Journal of Pediatrics 1978 (93):1:62-66.
Gehan EA, George SL. Estimation of human body surface area from height and weight. Cancer Chemother Rep 1970 54:225-35.
Boyd E. The growth of the surface area of the human body. Minneapolis: University of Minnesota Press, 1935.
Mosteller RD. Simplified Calculation of Body Surface Area. N Engl J Med . 1987 Oct 22;317(17):1098. (letter)
This activity has been planned and implemented in accordance with the accreditation requirements and policies of the Accreditation Council for Continuing Medical Education through the joint providership of University of Nebraska Medical Center, Center for Continuing Education and JLS Interactive, LLC.
The University of Nebraska Medical Center, Center for Continuing Education is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians.
This activity is approved by the American Society of Radiologic Technologists (ASRT) as sonography-related continuing education (CE). Credit(s) issued for successful completion of ASRT-approved CE activities are accepted by the American Registry of Diagnostic Medical Sonography, American Registry of Radiological Technologists, Cardiovascular Credentialing International and Canadian Association of Registered Diagnostic Ultrasound Professionals. Contact the applicable registry for additional information / restrictions on their acceptance of ASRT CE credit.