Aortic Root Z-score Calculator
By Justin
Use the Free Aortic Root Z score tool to calculate z-scores for the aortic valve and aortic root using data sourced from Boston Children’s Hospital.
The technique for measurements are the following: “Aortic annulus and root diameters were measured from parasternal long-axis images, with the aortic root diameter taken as the maximum dimension at the level of the sinuses… measured at the maximum systolic dimensions, from inner edge to inner edge.”
Body surface area is calculated by the method of Haycock et al.
| BSA: | |||||
| Site | Measurement |
Mean
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Range
|
Z-Score
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Percentile
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|---|---|---|---|---|---|
References
Validation and re-evaluation of a discriminant model predicting anatomic suitability for biventricular repair in neonates with aortic stenosis. Colan SD, McElhinney DB, Crawford EC, Keane JF, Lock JE. J Am Coll Cardiol. 2006 May 2;47(9):1858-65.
Z score calculator by Dan Dyar is licensed under a Creative Commons Attribution 3.0 License and is based on a work at parameterz.com
