Dallaire and Dahdah, JASE 2011

BSA-adjusted z-scores for the coronary arteries. Coronary segments include the circumflex and distal right coronary artery in addition to the usual proximal segments (LMCA, LAD, RCA). Based on data from over 1,000 infants, children, and adolescents seen in Montreal, Quebec, Canada. Particular attention was paid to ensuring the data conforms to a normal distribution— an essential point for properly interpreting z-score results.

Patient Demographics

Height (cm):

Weight (kg):

BSA ("Haycock"):

Measurements

Site

Z-Score

Range

Left Main Coronary Artery (mm):

Z-Score:

Range:

Left Anterior Descending Coronary Artery (mm):

Z-Score:

Range:

Circumflex Coronary Artery (mm):

Z-Score:

Range:

Proximal Right Coronary Artery (mm):

Z-Score:

Range:

Mid Right Coronary Artery (mm):

Z-Score:

Range:

Distal Right Coronary Artery (mm):

Z-Score:

Range:

Note: the study population had the following characteristics:

age range: (0.16 - 18)
bsa range: (0.08 - 2.72)

Data entered for patients outside of these limits should be used with caution.

New equations and a critical appraisal of coronary artery Z scores in healthy children.

Dallaire F, Dahdah N.

J Am Soc Echocardiogr. 2011 Jan;24(1):60-74.