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Titolo:
Benefit of echocontrast-enhanced transcranial color-coded duplex ultrasound in the assessment of intracranial collateral pathways
Autore:
Droste, DW; Jurgens, R; Weber, S; Tietje, R; Ringelstein, EB;
Indirizzi:
Univ Munster, Neurol Klin & Poliklin, Dept Neurol, D-48129 Munster, Germany Univ Munster Munster Germany D-48129 pt Neurol, D-48129 Munster, Germany Schering AG, D-1000 Berlin, Germany Schering AG Berlin Germany D-1000Schering AG, D-1000 Berlin, Germany
Titolo Testata:
STROKE
fascicolo: 4, volume: 31, anno: 2000,
pagine: 920 - 923
SICI:
0039-2499(200004)31:4<920:BOETCD>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
CEREBRAL-ARTERY INFARCTION; INTERNAL CAROTID-ARTERY; COMMUNICATING ARTERY; DOPPLER SONOGRAPHY; FLOW; ENDARTERECTOMY; CIRCLE; WILLIS; OCCLUSION; DISEASE;
Keywords:
carotid artery diseases; contrast media; ultrasonography, Doppler, duplex;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
21
Recensione:
Indirizzi per estratti:
Indirizzo: Droste, DW Univ Munster, Neurol Klin & Poliklin, Dept Neurol, Albert Schweitzer Str 33, D-48129 Munster, Germany Univ Munster Albert Schweitzer Str 33 Munster Germany D-48129
Citazione:
D.W. Droste et al., "Benefit of echocontrast-enhanced transcranial color-coded duplex ultrasound in the assessment of intracranial collateral pathways", STROKE, 31(4), 2000, pp. 920-923

Abstract

Background and Purpose-Although clinically important, proper assessment ofintracranial arterial collateral pathways by transcranial color-coded duplex sonography (TCCD) in patients with internal carotid artery (ICA) high-grade stenosis or occlusion is occasionally made difficult by an insufficienttemporal bone window, an unfavorable insonation angle, or low flow velocity or volume. In these cases, echocontrast could be helpful to increase the diagnostic confidence or to make the diagnosis at all. Methods-We investigated 50 temporal windows of 44 patients with ipsilateral high-grade (greater than or equal to 70%) ICA stenosis or occlusion and insufficient native transtemporal insonation conditions before and after theapplication of the echo enhancer Levovist with an infusion pump. Results-Compared with the precontrast scans, echocontrast allowed for moresegments to be evaluated by pulsed Doppler sonography (P<0.0001) and for longer lumen segments to be displayed on color mode (P<0.0001). Also, collateral flow via the anterior and posterior communicating artery could be demonstrated in 25 and 32 scans, respectively, compared with only 1 demonstration of each collateral pathway before the application of contrast medium (both P<0.0001). Similarly, with the help of contrast medium, now velocity in the middle cerebral artery could be measured in 45 cases compared with only26 cases before contrast was applied (P<0.0001). Conclusions-In patients with poor precontrast visualization of intracranial arteries, echocontrast-enhanced TCCD is very helpful in the assessment ofintracranial collateral pathways recruited downstream to ICA stenoses and occlusions.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/01/21 alle ore 12:19:36