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

Table 26 Normal left ventricular myocardial thickness (in mm) in the adult measured on short axis images for men and women

Level	Segment	Men				Women
Level	Segment	n	Mean_p	SD_p	LL–UL^c	n	Mean_p	SD_p	LL–UL^c
Basal	1^a	387	7.8	1.3	5–10	467	6.4	1.1	4–9
	2^b	900	9.0	1.4	6–12	1114	7.6	1.2	5–10
	3^a	387	8.8	1.2	6–11	467	7.3	1.0	5–9
	4^a	387	7.9	1.2	6–10	467	6.4	1.0	4–8
	5^b	900	7.7	1.2	5–10	1114	6.3	1.1	4–9
	6^a	387	7.5	1.2	5–10	467	6.1	1.0	4–8
Mid-cavity	7^a	387	6.7	1.2	4–9	467	5.6	1.0	4–8
	8^a	387	7.4	1.3	5–10	467	6.1	1.0	4–8
	9^a	387	7.9	1.2	6–10	467	6.6	1.0	5–9
	10^a	387	7.0	1.2	5–9	467	5.8	1.0	4–8
	11^a	387	6.5	1.4	4–9	467	5.3	1.0	3–7
	12^a	387	6.6	1.2	4–9	467	5.5	1.1	4–8
Apical	13^a	387	6.5	1.2	4–9	467	5.9	1.3	3–9
	14^a	387	6.8	1.3	4–9	467	5.8	1.1	4–8
	15^a	387	6.1	1.1	4–8	467	5.2	1.0	3–7
	16^a	387	6.2	1.1	4–8	467	5.6	1.0	4–8

Segments: 1: basal anterior, 2: basal anteroseptal, 3: basal inferoseptal, 4: basal inferior, 5: basal inferolateral, 6: basal anterolateral, 7: mid anterior, 8: mid anteroseptal, 9: mid inferoseptal, 10: mid inferior, 11: mid inferolateral, 12: mid anterolateral, 13: apical anterior, 14: apical septal, 15: apical inferior, 16: apical lateral
n number of study subjects included in the weighted mean values, mean_p pooled weighted mean, SD_p pooled standard deviation, LL lower limits, UL upper limits
^aPooled weighted values from references [14, 55, 56]
^bPooled weighted values from references [14, 18, 25, 55, 56]
^cCalculated as mean_p ± 2*SD_p

ISSN: 1532-429X