Normative computed tomography angiography values of the main and branch pulmonary arteries in children

Conclusion: We report systolic and diastolic mean, maximum, and minimum diameters and cross-sectional areas along with Z-scores and normative curves for the main and branch pulmonary arteries in children derived using ECG-gated cardiac CTA. We believe our results can help identify abnormally sized main and branch pulmonary arteries.What is Known:• Normative data for intracardiac and extracardiac vascular structures in the pediatric population are available for echocardiography, cardiac MRI and non-ECG gated CTA.• Z-scores with standard deviations are commonly used in children, but SDs are not constant across body sizes due to heteroscedasticity.What is New:• Allometric exponent was derived for each parameter and the parameter/body surface area (BSA) was established.• This is the first ECG-gated CTA study to provide normative en face systolic, diastolic diameters and cross-sectional areas along with Z-scores and normative curves for the main and branch pulmonary arteries in children.
Source: European Journal of Pediatrics - Category: Pediatrics Source Type: research