OBJECTIVE: To investigate if the intracisternal distribution of @entity510 ( @entity510 ) following @entity1756 allows the correct prediction of the symptomatic @entity439 site. [nl] METHODS: Ninety-nine consecutive @entity1 with acute @entity510 and angiographically proven @entity439 were included into the study. The parent vessel of the diagnosed @entity439 were the anterior communicating artery (ACoA) in 38 @entity1 , the @entity2500 ( @entity2500 ) in 26 @entity1 , the internal carotid artery (ICA) in 25 @entity1 , the pericallosal artery (A2) in 5 @entity1 , the basilar artery (BA) in 4 @entity1 and the vertebral artery (VA) in 1 @entity1 . In 21 @entity1 , an additional asymptomatic @entity439 was diagnosed. The initial computerized tomography (CT) scans of the 99 @entity1 were given to 2 experienced vascular neurosurgeons, who were blinded for the angiography findings. The 2 investigators had to predict the site of the @entity1756 . [nl] RESULTS: Investigator 1 correctly predicted the @entity439 site in 56 (57 %), investigator 2 in 59 of the 99 @entity1 (60 %). Investigator 1 correctly identified 81 % of the @entity438 , and investigator 2 74 % of the ACoA @entity439 . However, in only 46 of the 99 @entity1 (47 %), the @entity439 site was correctly predicted by both investigators together. [nl] CONCLUSION: The results indicate, that the distribution of the subarachnoid blood as shown on the first CT scan after @entity1756 barely allows to predict the symptomatic @entity439 site. Thus, neurosurgical decision making (identification of the @entity1756 in @entity1 with @entity439 ; surgical exploration in @entity1 with non-perimesencephal @entity510 , but negative angiography) should not rely on the first CT scan after @entity510 .

[ XXXX : role of computerized tomography for correct prediction of the @entity1756 site].

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity510 :: ('MESH:D013345', 'Disease') :: ['SAH', 'subarachnoid hemorrhage'] @entity2500 :: ('MESH:D020244', 'Disease') :: ['middle cerebral artery', 'MCA'] @entity438 :: ('MESH:D002532', 'Disease') :: ['MCA aneurysms'] @entity439 :: ('MESH:D000783', 'Disease') :: ['aneurysms', 'aneurysm', 'multiple aneurysms'] @entity1756 :: ('MESH:D017542', 'Disease') :: ['aneurysm rupture', 'ruptured aneurysm']
@entity510 :: (MESH:D013345,Disease) :: ['Aneurysmal subarachnoid hemorrhage']
