Kobayashi et al., JASE 2016

Gender-specific, BSA-adjusted z-scores of the proximal coronary arteries (LMCA, LAD, LCX, RCA). Data is from a prospective multicenter study in Japan, with 3,851 patients.

A Microsoft Excel-based Z-score calculator was also created, which is freely available online (http://raise.umin.jp/zsp/calculator/).

Patient Demographics

Height (cm):

Weight (kg):

BSA ("Haycock"):

Gender:

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:

Note: the study population had the following characteristics:

BSA range: (0.15 - 2.29)
age range: (0 - 19)

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

A New Z-Score Curve of the Coronary Arterial Internal Diameter Using the Lambda-Mu-Sigma Method in a Pediatric Population.

Kobayashi T, Fuse S, Sakamoto N, Mikami M, Ogawa S, Hamaoka K, Arakaki Y, Nakamura T, Nagasawa H, Kato T, Jibiki T, Iwashima S, Yamakawa M, Ohkubo T, Shimoyama S, Aso K, Sato S, Saji T; Z Score Project Investigators.

J Am Soc Echocardiogr. 2016 Jun 7. pii:S0894-7317(16)30001-3.