Normative reference values of thoracic aortic diameter in American College of Radiology Imaging Network (ACRIN 6654) arm of National Lung Screening Trial
Barbara L. McComb, Reginald F. Munden, Fenghai Duan, Amanda A. Jain, Catherine Tuite, Caroline Chiles
Establish normative reference values for thoracic aortic diameter (AD) in participants in the National Lung Screening Trial (NLST).
Thoracic AD on 322 prevalence CTs was recorded at the sinotubular junction (STJ), mid-ascending (MA), transverse arch (TA), mid-descending (MD), and diaphragmatic hiatus (DH).
Mean AD (cm) and upper limits of normal for men and women were recorded for at each location. Smoking did not correlate with AD. Age, gender and body surface area (BSA) were the most significant factors.
Thoracic AD reference values are reported. They do not correlate with smoking, but did for age, gender, BSA.