The Role of Bone Subtraction Computed Tomographic Angiography in Determining Intracranial Aneurysms in Non-Traumatic Subarachnoid Hemorrhage

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dc.contributor.authorKayhan, Aysegul
dc.contributor.authorKoc, Osman
dc.contributor.authorKeskin, Suat
dc.contributor.authorKeskin, Fatih
dc.date.accessioned2024-02-23T14:44:44Z
dc.date.available2024-02-23T14:44:44Z
dc.date.issued2014
dc.departmentNEÜen_US
dc.description.abstractBackground: The presence of blood in the subarachnoid space is an acute pathology with a serious risk of death and complications. The most common etiology (approximately 80%) is intracranial aneurysm. Objectives: The aim of this study was to assess the role of bone subtracted computed tomographic angiography (BSCTA), a novel and noninvasive method for determining and characterizing intracranial aneurysms. Patients and Methods: Sixty consecutive patients with clinically suspected non-traumatic subarachnoid hemorrhage (SAH) were considered to enter the studs The subtraction quality was inadequate in ten patients; thus, they were excluded, leaving 50 patients (84.4%) in the study. Bone subtracted and non-subtracted 3D images were obtained from the BSCTA raw data sets. All images obtained by digital subtraction angiography (DSA), BSCTA, and computed tomographic angiography (CTA) were evaluated for the presence or absence of an aneurysm and the location, minimal sac diameter, and neck size ratio of the aneurysm. DSA was considered as the gold standard during the evaluation of the data. Results: Of the 50 patients who participated in this study, 11 had no aneurysms as determined by both CTA and DSA. Examination of the remaining 39 patients revealed the presence of 51 aneurysms. While 3D-CTA could not detect six aneurysms that were located in the base of the skull, 3D-BSCTA easily detected them. Moreover, five aneurysms were only partially detected by 3D-CTA. According to this data, the sensitivity of 3D-BSCTA and 3D-CTA was calculated as 98% and 86.3%, respectively; the specificity was calculated as 100% and 90.9%, respectively, per aneurysm; and the sensitivity of 100% for 3D-BSCTA and 98% for 3D-CTA was achieved by using combined images with multi-planar reconstruction (MPR) and maximum intensity projection (MIP). BSCTA detected and characterized the aneurysms as well as DSA, and BSCTA and DSA gave concordant results in detecting aneurysms. Conclusions: BSCTA is easily accessible, less time consuming, and most importantly, a non-invasive technique for detecting intracranial aneurysms. It is also suitable for patients who have been referred to emergency services. Therefore, it can be used in emergency conditions and as a first-line diagnostic method in patients with non-traumatic SAH.en_US
dc.identifier.doi10.5812/iranjradiol.12670
dc.identifier.issn1735-1065
dc.identifier.issn2008-2711
dc.identifier.issue2en_US
dc.identifier.pmid25035697en_US
dc.identifier.scopus2-s2.0-84901675698en_US
dc.identifier.scopusqualityQ4en_US
dc.identifier.urihttps://doi.org/10.5812/iranjradiol.12670
dc.identifier.urihttps://hdl.handle.net/20.500.12452/17090
dc.identifier.volume11en_US
dc.identifier.wosWOS:000343525300005en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherKowsar Publen_US
dc.relation.ispartofIranian Journal Of Radiologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectIntracranial Aneurysmen_US
dc.subjectSubtraction Techniqueen_US
dc.subjectSubarachnoid Hemorrhageen_US
dc.subjectComputed Tomographyen_US
dc.titleThe Role of Bone Subtraction Computed Tomographic Angiography in Determining Intracranial Aneurysms in Non-Traumatic Subarachnoid Hemorrhageen_US
dc.typeArticleen_US

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