Aneurysms paraophthalmic

Multiple aneurysms occur in about 20%-30% of patients with an aneurysm Paraophthalmic aneurysms are very difficult aneurysms to treat due to their configuration with generally a wide neck and due to the difficulty to obtain a stable microcatheter position... 

Fig.5.6e-I. Various locations of aneurysms (continued), e Small basilar trunk aneurysm and aneurysm at the PI segment, f Basilar tip aneurysm, g Acorn aneurysm, h ICA aneurysm at the origin of the Pcom artery, so-called Pcom aneurysm, i Aneurysm at the bifurcation of the pericallosal and callosomarginal artery, so-called pericallosal aneurysm, j MCA bifurcation aneurysm, k ICA aneurysm at the origin of the ophthalmic artery, so-called paraophthalmic aneurysm. I Distal carotid bifurcation aneurysm...

Fig. 5.29a-f. MCA aneurysm with a small branch arising from the sac. More homogenous signal of the aneurysm was seen with 7 Tesla (b) b,c 3D Time of flight MRA demonstrating a paraophthalmic aneurysm on 1.5 T and 7 T, distal vessel depiction is nicely demonstrated on 7 T MRA e,f paraophthalmic aneurysm on DSA and well demonstrated on non-enhanced MPR age sequence imaged with 7 T... 

Fig. 5.31. a Paraophthalmic aneurysm. b On 3D rotational DSAthe ophthalmic artery is assumed to originate from the aneurysm, but after complete occlusion of the aneurysm this vessel remained patent (c)... 

Fig. 5.46a-f. Giant paraophthalmic aneurysm in a 37-year-old female with vision loss on left side. Aneurysm was completely excluded by deploying a covered stent (Mastergraft, Jomed). Note after stent placement perfusion of MCA branches is much better... 

Fig.5.50a-d. Giant partially thrombosed paraophthalmic ICA aneurysm with some calcification at the ventral rim... 

Fig. 5.51 a-c. Small broad-based paraophthalmic aneurysm treated with remodelling technique, previously coiled Acorn aneurysm... 

Fig. 5. 52. a,b Large paraophthalmic broad-based ICA aneurysm extending cranially superior to the clinoid process with partial calcification, c Evacuation trapping technique during clipping was performed after transient balloon occlusion of the left internal carotid artery... 

Fig. 18.5a-c. Anatomical variation. Orbit supply entirely from the middle meningeal artery (arrow) a. On venous phase of left EGA angiography, choroidal blush is clearly shown (arrow) b. Internal carotid artery angiography demonstrates a large paraophthalmic aneurysm, but no ophthalmic artery is visualized from the ICA c... 

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