Reliability of Bony Landmarks to Predict Intradural Location of Paraclinoid Aneurysms.
Anatomical landmarks
Carotid cave
Computed tomography
Distal dural ring
Predicting intradural location
Journal
Clinical neuroradiology
ISSN: 1869-1447
Titre abrégé: Clin Neuroradiol
Pays: Germany
ID NLM: 101526693
Informations de publication
Date de publication:
Dec 2020
Dec 2020
Historique:
received:
17
09
2019
accepted:
26
02
2020
pubmed:
15
3
2020
medline:
6
11
2021
entrez:
15
3
2020
Statut:
ppublish
Résumé
When dealing with paraclinoid carotid aneurysms, the distinction between intradural and extradural location is a major component for decision-making as only intradural aneurysms carry a risk of subarachnoid hemorrhage (SAH). The aim of this study was to test the accuracy and reliability of computed tomography (CT) bony landmarks for the distinction between intradural and extradural paraclinoid aneurysms. All patients referred to this institution for a single paraclinoid aneurysm were retrospectively identified. The study included only the patients who presented with diffuse SAH, thus proving the intradural location of the aneurysm. The preoperative images were assessed by two physicians in order to locate the aneurysms using the tuberculum sellae (TS) and the optic strut (OS) landmarks. A total of 15 patients were included in the study. There were 4 cases (27%) of disagreement with the OS bony landmark and no cases of disagreement with the TS landmark. No aneurysm was consensually considered as extradural by both readers with both bony landmarks; however, five aneurysms (33%) were considered to be extradural by at least one of the physicians with at least one of the two bony landmarks. The results of the study showed several disagreements when using the OS landmark. More importantly, several aneurysms were considered as extradural with at least one of these two CT bony landmarks, even though they were all associated with an SAH. More reliable and accurate landmarks are warranted.
Identifiants
pubmed: 32170338
doi: 10.1007/s00062-020-00896-0
pii: 10.1007/s00062-020-00896-0
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
843-848Références
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