الفهرس 
o Cerebrovascular AnatomyOnly 14 pages are availabe for public view
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Abstract
Interest in endovascular techniques for treatment of intracranial aneurysms has exploded in the past decade. Not too long ago, endovascular aneurysm occlusion was considered a second-line treatment, but it has rapidly become the primary therapeutic option. The “minimally invasive” nature of this approach allows treatment of an intracranial aneurysm through a small groin incision. This approach is understandably more appealing to patients than open surgery involving craniotomy, brain retraction, and dissection. Other factors favoring the rapid spread of this technology include the ease of endovascular access to surgically difficult and demanding areas, such as basilar trunk or bifurcation, and the ability to visualize angiographically the patency of adjacent vessels during procedure.
Endovascular therapy of intracranial aneurysms generally aims at occlusion or thrombosis of the aneurysm sac. The approaches can be classified into two broad categories. Deconstructive approaches involve occlusion of the parent vessel with resultant stasis of the blood inside the aneurysm. Reconstructive approaches involve selective occlusion of the aneurysm lumen sparing of the parent artery. The method of aneurysm obliteration depends primarily on the site, size, and morphologic features of the aneurysm.
Many factors affect the obliteration rate, but the most important factor is the ratio of the neck of the aneurysm to the fundus. Aneurysms with wide necks, (dome/neck ratio <2), are more challenging than narrow neck aneurysm.
With revolution of endovascular techniques and instruments, small aneurysms can be easily treated now with high success rate. Small aneurysms are now treated with one of these methods:
1) Coils alone.
2) Coiling with Balloon remodeling technique.
3) Stent assisted coiling.
4) Flow diversion (pipeline devices and silk flow diverters).
Introduction of the newer coils generations allowed dense packing of the aneurysms, which in turn reduced the complication rates, especially the recurrence/retreatment rates seen with the older coil generations. These new coils include, but not limited to, 3-D coils, Hydrocoils, and Bioactive coils.
This study aimed at evaluation of the endovascular treatment of small aneurysms as the first line of treatment measuring the success and complication rates both clinically and radiologically.