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Titolo:
Intracranial aneurysms: CT angiography and MR angiography for detection - Prospective blinded comparison in a large patient cohort
Autore:
White, PM; Teasdale, EM; Wardlaw, JM; Easton, V;
Indirizzi:
Univ Glasgow, So Gen Hosp, Dept Neurosurg, Glasgow, Lanark, Scotland Univ Glasgow Glasgow Lanark Scotland eurosurg, Glasgow, Lanark, Scotland So Gen Hosp, Dept Neuroradiol, Inst Neurol Sci, Glasgow, Lanark, Scotland So Gen Hosp Glasgow Lanark Scotland eurol Sci, Glasgow, Lanark, Scotland Univ Edinburgh, Dept Clin Neurosci, Western Gen Hosp, Edinburgh EH4 2XU, Midlothian, Scotland Univ Edinburgh Edinburgh Midlothian Scotland EH4 2XU Midlothian, Scotland Dept Med Stat, Edinburgh, Midlothian, Scotland Dept Med Stat Edinburgh Midlothian Scotland nburgh, Midlothian, Scotland
Titolo Testata:
RADIOLOGY
fascicolo: 3, volume: 219, anno: 2001,
pagine: 739 - 749
SICI:
0033-8419(200106)219:3<739:IACAAM>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
MAGNETIC-RESONANCE ANGIOGRAPHY; COMPUTERIZED-TOMOGRAPHY ANGIOGRAPHY; ACUTE SUBARACHNOID HEMORRHAGE; CEREBRAL ANEURYSMS; CONVENTIONAL ANGIOGRAPHY; TIME; DIAGNOSIS; DISEASE; SENSITIVITY; MANAGEMENT;
Keywords:
aneurysm, intracranial; computed tomography (CT), angiography; digital subtraction angiography, comparative studies; magnetic resonance (MR), vascular studies;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
55
Recensione:
Indirizzi per estratti:
Indirizzo: White, PM Univ Glasgow, So Gen Hosp, Dept Neurosurg, Glasgow, Lanark, Scotland Univ Glasgow Glasgow Lanark Scotland Glasgow, Lanark, Scotland
Citazione:
P.M. White et al., "Intracranial aneurysms: CT angiography and MR angiography for detection - Prospective blinded comparison in a large patient cohort", RADIOLOGY, 219(3), 2001, pp. 739-749

Abstract

PURPOSE: To compare computed tomographic (CT) angiography and magnetic resonance (MR) angiography with intraarterial digital subtraction angiography (DSA) in the detection of intracranial aneurysms. MATERIALS AND METHODS: One hundred forty-two patients underwent intraarterial DSA to detect aneurysms. CT angiography, three-dimensional time-df-flight angiography, and intraarterial DSA were performed contemporaneously. Film hard-copy images and maximum intensity projection reconstructions of the CT angiograms and MR angiograms were reviewed at different times. RESULTS: The accuracy per patient for the best observer was 0.87 at CT angiog- and 0.85 at MR angiography. The accuracy per aneurysm for the best was0.73 at CT angiography and 0.67 at MR angiography. Differences between readers and modalities were not significant. Interobserver agreement was good:K value of 0.73 for CT angiography and of 0.74 for MR angiography. The sensitivity fbr detection of aneurysms smatter than 5 mm was 0.57 for Cf angiography and 0.35 for MR angiography compared with 0.94 and 0.86, respectively, for of aneurysms 5 mm or larger. The accuracy of both CT angiography andangiography was lower for detection of internal carotid artery aneurysms compared with that at other sites. With low observer confidence, the likelihood of correct interpretation was significantly poorer. CONCLUSION: CT angiography and MR angiography have limited sensitivity in the detection of small aneurysms but good interobserver agreement. There isno significant difference in diagnostic performance between the noninvasive modalities.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/09/20 alle ore 05:09:28