Repack | Z-score Marfan

A z-score ≥ 2 is often used as a threshold for diagnosing aortic root dilatation in Marfan syndrome.

z-score = (measured aortic root diameter - expected aortic root diameter) / (standard deviation of expected aortic root diameter) z-score marfan

Marfan Syndrome: A Summary of Genetic Causes and Ghent Criteria A z-score ≥ 2 is often used as

While the Z-score is an excellent tool, it isn't perfect. It quantifies how many standard deviations an individual's

The is the cornerstone of clinical evaluation for Marfan syndrome . It quantifies how many standard deviations an individual's aortic root diameter deviates from the predicted healthy population mean based on age, sex, and body size. Because progressive dilatation of the aortic sinuses of Valsalva is the leading cause of life-threatening aortic dissection in Marfan patients, calculating and monitoring this normalized metric is essential for timely diagnostic confirmation, surgical profiling, and therapeutic adjustments. What is an Aortic Root Z-Score?