الفهرس 
Cerebrovascular AnatomyOnly 14 pages are availabe for public view
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Abstract
Arteriovenous malformations of the brain are congenital
lesions most likely developing during the late embryonic life.
The primary pathologic lesion consists of one or more
persistent direct connection between the arterial inflow and
venous outflow without an intervening capillary bed
(Garretson, 1996).
The development of new technology in neurosurgery,
interventional neurovascular techniques, sterotactic
radiosurgery – Gamma knife has dramatically changed the
therapeutic alternatives for brain arteriovenous malformation
(Gobin et al., 1996).
Initially, the goal of endovascular embolization was
complete occlusion of arteriovenous malformations. However,
with the growing experience, it seemed that this goal could be
achieved in only a limited number of cases. These include
AVMs of small or moderate size which are supplied by a
limited number of feeders, less than three feeding vessels. Yet
endovascular embolization is useful in combined therapies as it