Table 2

DW-MRI Findings Following TAVI

VariablesAll Patients (n = 60)Transfemoral (n = 29)Transapical (n = 31)p Value
Patients with new lesions41 (68)19 (66)22 (71)0.78
Total number of lesions25183168
Lesions per patient3 (2–8)3 (1–7)4 (2–9)0.38
 Patients with single lesion10 (24)5 (26)5 (23)1.00
 Patients with multiple lesions31 (76)14 (74)17 (77)
Lesion location, patients
 Right hemisphere7 (17)4 (21)3 (14)0.68
 Left hemisphere4 (10)1 (5)3 (14)
 Bilateral lesions30 (73)14 (74)16 (73)
 Anterior circulation territory9 (22)5 (26)4 (18)0.58
 Posterior circulation territory5 (12)3 (16)2 (9)
 Anterior and posterior circulation territories27 (66)11 (58)16 (73)
Lesion size, cm
 <1229 (91)76 (92)153 (91)1.00
 1–522 (9)7 (8)15 (9)1.00
 >5000
Time of post-procedural DW-MRI, days4 (2–6)4 (2–6)5 (3–6)0.37

Values are expressed as n (%) or median (interquartile range) for skewed variables.

DW-MRI = diffusion-weighted magnetic resonance imaging; TAVI = transcatheter aortic valve implantation.