Comparison between DSA and the PMP for the location of paraclinoid aneurysms around the roof of the cavernous sinus

Aneurysms	Aneurysmal Projection		Angiographic Location		PMP Location
Aneurysms	Neck	Sac	Neck	Sac	Neck	Sac
1^*	MP^*	MP^*	SC^*	T^*	SC^*	SC^*
2	M	M	IC	IC	IC	IC
3^*	P^*	P^*	SC^*	T^*	T^*	T^*
4^*	M^*	M^*	IC^*	IC^*	SC^*	SC^*
5	M	M	T	T	T	T
6^*	P^*	P^*	SC^*	SC^*	SC^*	T^*
7	MP	MP	IC	IC	IC	IC
8	MP	MP	IC	IC	IC	IC
9	MP	MP	IC	IC	IC	IC
10^*	MP^*	MP^*	T^*	IC^*	SC^*	T^*
11	M	MP	SC	T	SC	T
12	A	A	SC	SC	SC	SC
13	MP	MP	IC	T	IC	T
14^*	LA^*	L^*	IC^*	T^*	SC^*	SC^*
15^*	MP^*	M^*	IC^*	IC^*	T^*	T^*
16	MP	P	IC	IC	IC	IC
17^*	M^*	MP^*	T^*	T^*	IC^*	IC^*

Note:—M indicates medial; L, lateral; A, anterior; P, posterior; IC, intracavernous; T, transitional; SC, supracavernous.
* Cases with different interpretations.