The Value Of Cerebral Angiography In The Cerebralvascular Diseases

Objective : The purpose of our study was to observe the cerebral angiographic features and evaluate the value of cerebral angiography in investigating the development of cerbralvascular diseases, predicting the manifestation and chosing therapy methods.Materials and Methods: Cerebral angiographic manifestations in 140 cases of cerebralvascular diseases were retrospectively reviewed in 2002.1-2005.3, all of which had been definitely dignosised as cerebralvascular diseases by cerebral angiography。 There were 62 male and 78 famale patients。 All cases had been performed by cranial CT。 The cases include 88 cerebral aneurysms, 28 cerbral arteriovascular malformation, 17 stenosis or occulation on internal carotid artery(ICA), 5 CCF, 2 DAVF。Of 38 specimens of anterior communicating artery aneurysm, anterior cerbral artery A1 segment on the same side with AcoAA was dominant in blood supply in 26 patients., The ralationship between A1 dominant signs and anterior communicating artery aneurysm(ACoAA) formation was investigated by stastic analysis.28 cases of cerbral arteriovascular malformation(AVM) were classified according the number of feeding arteries ang drainaging veins。 The bleeding risk of the cerebral AVM groups with differient number of feeding arteries and draining veins were analyzed respectively。The cases with lateral and bilateral ICA stenosis or occulation, in which anterior and posterior communicating arteries providing colateral supply werefound, were respectively accounted 。 The ratio of the occurence of the cola-teral suply of ACoA and PCoA was compared in lateral and bilateral ICA stenosis or occulation.Result: A1 dominant signs in aneurysms group of the anteior communicating artery was more common than those in the control group(P<0.05)。 A1 dominant sign is the related factor of the anterior communicating artery aneurysms(AcoAA)。No significant difference of the bleeding risk was seen among cerbral art -eriovenous malformation(AVM) groups classified according to the number of feeding arteries (p>0.05), while the difference of the bleeding risk between one draining vein and more than three draining veins reach statistical significance (p<0.05).The ratios of the ACoA and PCoA colateral circulation are different in lat -eral and bilateral ICA stenosis or occulationConclusion:1 A1 dominant sign is the dangerous factor for anterior communicating artery aneurysm(ACoAA) formation.2 The number of feeding arteris was not a corralation factor of the cere -bral AVM hemorrhage, While the hemorrhage rate of the cerebral AVM with one draining vein was obviously higher than that of the cerebral AVM with over three draining veins . blood supply from basilar artery and those getting blood suply from other artery3 Lateral ICA with stenosis or occulation was chiefly supplied by posteri -or communicating artery, while bilateral ICA with stenosis or occulation was supplied by the anterior communicating artery and the posterior communicating artery。...