Table 3.

Results of leading studies on complications arising during neuroangiography.

Author	Journal	Year	N° patients	N° vascular axes examined	Transient complications	Permanent complications
Earnest F. et Al	AJR	1984	1517		2.3%	0.3%
Dion J.E. et Al	STROKE	1987	1002		1.3%	0.1%
Waugh J.R. et Al	Radiology	1992	939		\\	0.3%
Heiserman J. et Al	AJNR	1994	688	1000	1%	0.5%
Leffers M. et Al	Acta Radiol	2000	453		2.3%	0.4%
Willinsky R. et Al	Radiology	2003	2899		0.9%	0.5%