Get Pediatric Aortic CSA Z-Score

GET https://script.google.com/macros/s/AKfycbxAS4M2cXieomL5OfQwaOl4lsmfk3br0xy2lQgzbNb68zrd6rsBlLiFFhtfw6h3Boow/exec

Calculates the z-score, percentile, and normal limits for a measured aortic cross-sectional area based on the patient's age, gender, and the specific aortic level measured. Provides LMS parameters to calculate z-scores for aortic cross-sectional area (CSA) relative to age in children and young adults.

The underlying data and methodology are from: Voges I, Jerosch-Herold M, Hedderich J, et al. Normal values of aortic dimensions, distensibility, and pulse wave velocity in children and young adults: a cross-sectional study. J Cardiovasc Magn Reson. 2012;14:77.

Measurement Context: Aortic area is measured at maximum distension of the aorta on cross-sectional cine gradient echo images acquired perpendicular to the aortic axis.

LMS Parameters:

• L (Lambda): Skewness of the distribution.
• M (Mu): Median value.
• S (Sigma): Coefficient of variation.

Important Notes:

• HTTP Status Code: All responses have an HTTP 200 OK status. You must check the JSON body for an error field to determine if the request was successful.
• Age: The age parameter should be the patient's age in whole years. For infants under 1 year old, use age=0.