. 2022 Jul 22;16(10):515–522. doi: 10.5797/jnet.cr.2022-0009

Table 1. Previous reports on the angiographic characteristics of micro-AVMs.

Authors	No. of micro-AVMs	Mean age (y/o)	Initial angiographic results			The rate of SA at the repeated angiography*	Mean delay between onset and diagnosis (days)
Authors	No. of micro-AVMs	Mean age (y/o)	No. of positive results (%)	No. of equivocal results	No. of negative results	The rate of SA at the repeated angiography*	Mean delay between onset and diagnosis (days)
Cellerini et al. 2002⁴⁾	10	48.8	5 (50%)	3	2	4/5	129.8
Perrini et al. 2004⁷⁾	14	44.6	8 (57.1%)	3	3	3/6	50.4
Andreou et al. 2008²⁾	25	29.7	18 (72%)	5	2	6/7	Unknown
Alén et al. 2013³⁾	28	37.1	22 (78.6%)	0	6	4/6	Unknown

*The rate of patients who underwent SA, when the initial angiographic results were equivocal or negative. micro-AVMs: micro-arteriovenous malformations; SA: superselective angiography; y/o: years old