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

Table 42 Normal diameters of the aortic root for men and women measured on sagittal left ventricular outflow tract bSSFP

Parameter	Men				Women
Parameter	n	Mean_p	SD_p	LL–UL^e	n	Mean_p	SD_p	LL–UL^e
Aortic annulus diameter (mm)^a	299	23	5	14–33	328	20	3	14–27
Aortic annulus diameter/BSA (mm/m²)^b	91	12	1	10–14	89	12	1	10–14
Aortic sinus diameter (mm)^c	359	32	6	19–45	388	28	5	17–38
Aortic sinus diameter/BSA (ml/m²)^d	151	17	2	13–21	149	17	2	13–21
Sinotubular junction diameter (mm)^a	299	25	6	12–38	328	21	5	12–31
Sinotubular junction diameter/BSA (mm/m²)^b	91	13	2	10–17	89	14	2	10–17

Measurements obtained as shown in Fig. 10.
n number of study subjects included in the weighted mean values, bSSFP balanced steady-state free precession, mean_p pooled weighted mean, SD_p pooled standard deviation, LL lower limit, UL upper limit, BSA body surface area
^aPooled weighted values from references [11, 86]
^bValues from reference [11]
^cPooled weighted values from references [11, 85, 86]
^dPooled weighted values from references [11, 85]
^eCalculated as mean_p ± 2*SD_p

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