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Titolo:
CEREBRAL ARTERIOVENOUS-MALFORMATIONS - FLOW QUANTITATION BY MEANS OF 2-DIMENSIONAL CARDIAC-GATED PHASE-CONTRAST MR-IMAGING
Autore:
WASSERMAN BA; LIN WL; TARR RW; HAACKE EM; MULLER E;
Indirizzi:
39 PK HILL DR NEW WINDSOR NY 12553 CASE WESTERN RESERVE UNIV,DEPT RADIOL CLEVELAND OH 44106 UNIV CLEVELAND HOSP CLEVELAND OH 44106 SIEMENS AG W-8520 ERLANGEN GERMANY
Titolo Testata:
Radiology
fascicolo: 3, volume: 194, anno: 1995,
pagine: 681 - 686
SICI:
0033-8419(1995)194:3<681:CA-FQB>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
TRANSCRANIAL DOPPLER SONOGRAPHY; MAGNETIZATION TRANSFER CONTRAST; BLOOD-FLOW; PREOPERATIVE EMBOLIZATION; VELOCITY; BRAIN; HEMODYNAMICS; ANGIOGRAPHY; INVIVO; ADULTS;
Keywords:
ARTERIOVENOUS MALFORMATIONS, CEREBRAL; BLOOD, FLOW DYNAMICS; BLOOD VESSELS, MR; MAGNETIC RESONANCE (MR), VASCULAR STUDIES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
42
Recensione:
Indirizzi per estratti:
Citazione:
B.A. Wasserman et al., "CEREBRAL ARTERIOVENOUS-MALFORMATIONS - FLOW QUANTITATION BY MEANS OF 2-DIMENSIONAL CARDIAC-GATED PHASE-CONTRAST MR-IMAGING", Radiology, 194(3), 1995, pp. 681-686

Abstract

PURPOSE: To test two-dimensional cardiac-gated phase-contrast (2DGPC)magnetic resonance (MR) imaging in the evaluation of cerebral arteriovenous malformations (AVMs) and the alterations in flow that accompanyembolization therapy. MATERIALS AND METHODS: A 2DGPC sequence was used to measure flow velocity in the feeding vessels and corresponding contralateral vessels (CCVs) of seven patients (six men and one woman, 21-55 years of age; mean, 37 years) with cerebral AVMs and in the vessels of four healthy volunteers (all men; mean age, 22 years). RESULTS: In the patients, the flow in the feeding vessels exceeded the flow in the CCVs by a margin far greater than the asymmetry in flow in the volunteers. The mean reduction in flow after embolization was 54.9% +/- 11.1 in embolized feeding vessels (n = 6) and 5.3% +/- 2.8 in nonembolized vessels (n = 3). Postembolization flow enhancement was observed inthe CCV (n = 2), which suggests a degree of autoregulatory dysfunction. CONCLUSION: This technique can be used to evaluate the flow patterns of AVMs and the hemodynamic changes that occur with embolization.

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Documento generato il 05/04/20 alle ore 08:25:46