Reference ranges (“normal values”) for cardiovascular magnetic resonance (CMR) in adults and children: 2020 update

Table 67 Left ventricular global peak circumferential and longitudinal strain using 3D feature tracking according to reference [26]

Parameter	n	Mean	SD	LL–UL^a
Circumferential strain (%)	100	− 17.6	2.6	− 22.8 to − 12.4
Longitudinal strain (%)	100	− 14.6	2.7	− 20.0 to − 9.2

n number of study subjects, SD standard deviation, LL lower limit, UL upper limit
^aCalculated as mean ± 2*SD

ISSN: 1532-429X