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Type:
Educational Exhibit
Keywords:
Aneurysms, Diagnostic procedure, CT-Angiography, CT, Catheter arteriography, Neuroradiology brain
Authors:
T. Gramada, B. I. Dobrovat, D. Negru; Iasi/RO
DOI:
10.1594/ecr2015/C-1947
Findings and procedure details
We conducted a retrospective study on a group of 87 patients that were diagnosed with spontaneous subarachnoid hemorrhage (SAH) using unenhanced CT scans,
from November 2013 to October 2014.
In this study we included only the patients to which any recent traumatic history could be ruled out.
For all of these patients,
CT-angiography (CTA) has been performed in order to detect the presence of cerebral aneurism.
For both the unenhanced CT scans and the CTAs,
we used a 16 slice,
40 rows Toshiba Aquilion CT scanner.
Our study showed that among the 87 investigated patients,
60 of them (69%) were diagnosed with the presence of cerebral aneurysm using CT-angiography.
The rest of 27 patients (31%) had negative CT-angiography findings and they have all been further investigated with digital subtraction angiography (DSA).
Among the 27 patients that were further investigated with DSA,
5 of them (6%) were diagnosed with a cerebral aneurism that had not initially been seen on the CTA scans.
The rest of 22 patients (25%) could not be diagnosed with cerebral aneurism as the cause of subarachnoid hemorrhage.