Table 3.

Evolution of vessel-wall contrast enhancement on follow-up

Follow-up interval	Complete resolution of VW-CE	Partial regression of VW-CE	Stability of VW-CE	Progression of VW-CE
Entire Follow-up* (N = 48)**	13 (27.1%)	14 (29.2%)	17 (35.4%)	4 (8.3%)
Short-term (N = 34)**	2 (5.9%)	12 (35.3%)	19 (55.9%)	1 (2.9%)
Mid-term (N = 22)**	7 (31.8%)	9 (40.9%)	6 (27.3%)	0 (0%)
Long-term (N = 21)**	8 (38.1%)	6 (28.6%)	3 (14.3%)	4 (19.0%)

VW-CE vessel wall contrast enhancement

*Comparison of the initial MRI scan with the last available MRI scan of each patient

**Number of evaluated VW-CE lesions