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Titolo:
Arterial flow determined with Half Fourier echo-planar imaging
Autore:
Rodriguez-Gonzalez, AO;
Indirizzi:
Univ Autonoma Metropolitana Iztapalapa, Dept Ingn Elect, Mexico City 09340, DF, Mexico Univ Autonoma Metropolitana Iztapalapa Mexico City DF Mexico 09340 Mexico
Titolo Testata:
ARCHIVES OF MEDICAL RESEARCH
fascicolo: 5, volume: 31, anno: 2000,
pagine: 470 - 485
SICI:
0188-4409(200009/10)31:5<470:AFDWHF>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
MAGNETIC-RESONANCE ANGIOGRAPHY; 3-DIMENSIONAL MR-ANGIOGRAPHY; BLOOD VELOCITY DISTRIBUTION; ASSESSING CARDIAC-FUNCTION; ISCHEMIC-HEART-DISEASE; K-SPACE ANALYSIS; CORONARY-ARTERY; PHASE-DIFFERENCE; RENAL-ARTERIES; CLINICAL-APPLICATIONS;
Keywords:
aorta; blood flow; echo-planar imaging; flow imaging; Half Fourier; magnetic resonance angiography;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
300
Recensione:
Indirizzi per estratti:
Indirizzo: Rodriguez-Gonzalez, AO Univ Autonoma Metropolitana Iztapalapa, Dept Ingn Elect, Av Michoacan & Purisima S-N,Colonia Vicentina, Mexico City 09340, DF,Mexico Univ Autonoma Metropolitana Iztapalapa Av Michoacan & Purisima S-N,Colonia Vicentina Mexico City DF Mexico 09340
Citazione:
A.O. Rodriguez-Gonzalez, "Arterial flow determined with Half Fourier echo-planar imaging", ARCH MED R, 31(5), 2000, pp. 470-485

Abstract

Background. Magnetic resonance imaging (MRI) has become a powerful imagingmodality to quantify blood flow. To gain insight of the hemodynamics of the human cardiovascular system, acquisition time of NIR images must be reduced. It is necessary to produce faster imaging methods to avoid motion artifacts, such as blurring and ghosting, which alter the image quality. To solve this problem a flow-encoded Echo-Planar Imaging (EPI) sequence combined with a Half Fourier method is proposed to determine blood flow in the cardiovascular system. Methods. This imaging modality was used to quantify blood flow in large vessels such as the human aorta. We acquired transaxial 128 X 128 images, with a slice of I-cm thickness and 2.5 mm in-plane resolution. All these images were used to measure blood flow in the ascending aorta and descending aorta of nine healthy male volunteers and one female volunteer, ages 22-35 years. Results. Velocity profiles and blood flow maps were obtained from healthy volunteers and compared with other imaging techniques. Conclusions. It has been demonstrated that Half Fourier EPI flow sequence can become a suitable flow measurement technique for real-time magnetic resonance angiography. It provides us with morphological and functional information of the cardiovascular system. (C) 2001 IMSS. Published by Elsevier Science Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/04/20 alle ore 07:46:05