Table 2.

Summary of performed interventions and replaced aortic valve types in the surgery group. Baseline to follow-up MRI duration as well as surgery to follow-up MRI duration (in days) are provided for each subgroup.

	AVR alone (n=5)	ARR-HA − (n=16)	ARR-HA + (n=12)
Bioprosthesis	n=4	n=12	n=6
MRI f-u duration	408 (334–594) days	43 (27–102) days	32 (20–40) days
surgery to f-u MRI	380 (321–559) days	6 (5–18) days	6 (5–17) days
Mechanical valve	n=1	n=0	n=4
MRI f-u duration	141 days	-	56 (33–72) days
surgery to f-u MRI	92 days	-	4 (3–5) days
VS-ARR		n=4	n=2
MRI f-u duration	-	33 (20–45) days	191;1200 days
surgery to f-u MRI		4 (3–9) days	6;3 days

AVR: aortic valve replacement; ARR-HA⁻: aortic root replacement with no hemi-arch repair; ARR-HA⁺: aortic root replacement and hemi-arch repair; f-u: follow-up; VS-ARR: valve-sparing ARR