320-Row Multidetector CT Angiography in the Detection of Critical Cerebrovascular Anomalies. (10th March 2016)
- Record Type:
- Journal Article
- Title:
- 320-Row Multidetector CT Angiography in the Detection of Critical Cerebrovascular Anomalies. (10th March 2016)
- Main Title:
- 320-Row Multidetector CT Angiography in the Detection of Critical Cerebrovascular Anomalies
- Authors:
- Hébert, Julien
Roncarolo, Federico
Tampieri, Donatella
Cortes, Maria delPilar - Abstract:
- Abstract: Background: The acquisition of a new 320-row multidetector computed tomography angiography (CTA) scanner at the Montreal Neurological Institute and Hospital has provided higher quality imaging with less radiation exposure and shorter time of acquisition. However, its reliability has not been fully proven in critical vascular lesions when it comes to replacing a more invasive examination such as cerebral angiography. We wished to validate the accuracy of this equipment to investigate four common indications for patients to undergo conventional digital subtraction angiography: subarachnoid hemorrhage, vasospasm, unusual intracerebral hemorrhage, and unruptured aneurysm. Methods: Radiological reports and relevant imaging from 82 consecutive subjects who underwent a 320-row multidetector CTA followed by cerebral angiography from February 2010 to February 2014 were retrospectively analysed. A total of 102 cerebrovascular anomalies were found. Reports from both imaging modalities were compared to determine the diagnostic accuracy of CTA. Results: The overall sensitivity and specificity of 320-row multidetector CTA for detecting cerebrovascular abnormalities were, respectively, 97.60% and 63.20%. Similar results were obtained for all four categories of clinical indications. Conclusion: Results obtained from CTA were consistent with those obtained on digital subtraction angiography regardless of the vascular pathology. To our knowledge, this study is the first validatingAbstract: Background: The acquisition of a new 320-row multidetector computed tomography angiography (CTA) scanner at the Montreal Neurological Institute and Hospital has provided higher quality imaging with less radiation exposure and shorter time of acquisition. However, its reliability has not been fully proven in critical vascular lesions when it comes to replacing a more invasive examination such as cerebral angiography. We wished to validate the accuracy of this equipment to investigate four common indications for patients to undergo conventional digital subtraction angiography: subarachnoid hemorrhage, vasospasm, unusual intracerebral hemorrhage, and unruptured aneurysm. Methods: Radiological reports and relevant imaging from 82 consecutive subjects who underwent a 320-row multidetector CTA followed by cerebral angiography from February 2010 to February 2014 were retrospectively analysed. A total of 102 cerebrovascular anomalies were found. Reports from both imaging modalities were compared to determine the diagnostic accuracy of CTA. Results: The overall sensitivity and specificity of 320-row multidetector CTA for detecting cerebrovascular abnormalities were, respectively, 97.60% and 63.20%. Similar results were obtained for all four categories of clinical indications. Conclusion: Results obtained from CTA were consistent with those obtained on digital subtraction angiography regardless of the vascular pathology. To our knowledge, this study is the first validating the accuracy of 320-row CTA in diagnosing critical cerebrovascular lesions. RÉSUMÉ: Apport de l'angiographie par tomodensitométrie (320 barrettes) dans la détection de graves anomalies cérébro-vasculaires . Contexte: L'acquisition par l'Institut et l'hôpital neurologiques de Montréal d'un nouvel appareil d'angiographie par tomodensitométrie (ATDM) de 320 barrettes permet d'obtenir plus rapidement une imagerie de meilleure qualité tout en diminuant l'exposition aux radiations. Lorsqu'il s'agit de remplacer un examen davantage invasif comme l'angiographie cérébrale, sa fiabilité n'a toutefois pas été encore entièrement démontrée dans le cas de graves lésions vasculaires. Nous avons ainsi voulu valider la précision de cet appareil en ce qui regarde quatre indications cliniques fréquentes justifiant chez des patients un examen d'angiographie numérique avec soustraction : une hémorragie méningée, un vasospasme, une hémorragie intracérébrale inhabituelle et un anévrisme non rompu. Méthodes: De février 2010 à février 2014, nous avons analysé rétrospectivement des rapports radiologiques et des résultats pertinents d'imagerie chez 82 patients ayant subi des examens d'ATDM (320 barrettes) suivis d'examens d'angiographie cérébrale. Un total de 102 anomalies cérébro-vasculaires a été détecté. Les rapports et résultats de ces deux techniques d'imagerie ont du coup été comparés afin de déterminer l'exactitude diagnostique de l'ATDM. Résultats: De façon générale, la sensibilité et la spécificité de l'appareil d'ATDM (320 barrettes) pour détecter des anomalies cérébro-vasculaires ont été respectivement de 97, 60% et de 63, 20%. Des résultats similaires ont été obtenus pour les quatre catégories d'indications cliniques. Conclusion: Les résultats obtenus avec un appareil d'ATDM se sont révélés comparables à ceux obtenus au moyen de l'angiographie numérique avec soustraction, et ce, quel que soit le type de pathologie vasculaire. À notre connaissance, cette étude est la première à valider la précision de l'appareil d'ATDM (320 barrettes) pour diagnostiquer de graves lésions cérébro-vasculaires. … (more)
- Is Part Of:
- Canadian journal of neurological sciences. Volume 43:Number 4(2016)
- Journal:
- Canadian journal of neurological sciences
- Issue:
- Volume 43:Number 4(2016)
- Issue Display:
- Volume 43, Issue 4 (2016)
- Year:
- 2016
- Volume:
- 43
- Issue:
- 4
- Issue Sort Value:
- 2016-0043-0004-0000
- Page Start:
- 543
- Page End:
- 548
- Publication Date:
- 2016-03-10
- Subjects:
- Neuroimaging, -- neurovascular
Neurology -- Periodicals
Nervous system -- Surgery -- Periodicals
Electronic journals
616.8 - Journal URLs:
- http://journals.cambridge.org/action/displayJournal?jid=CJN ↗
http://www.cjns.org/home.html ↗
http://cjns.metapress.com/link.asp?id=300307 ↗
http://cjns.metapress.com/openurl.asp?genre=journal&issn=0317-1671 ↗ - DOI:
- 10.1017/cjn.2016.11 ↗
- Languages:
- English
- ISSNs:
- 0317-1671
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- Legaldeposit
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