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Titolo:
MYOCARDIAL-FUNCTION IN INFARCTED AND REMOTE REGIONS EARLY AFTER INFARCTION IN MAN - ASSESSMENT BY MAGNETIC-RESONANCE TAGGING AND STRAIN ANALYSIS
Autore:
MARCUS JT; GOTTE MJW; VANROSSUM AC; KUIJER JPA; HEETHAAR RM; AXEL L; VISSER CA;
Indirizzi:
FREE UNIV AMSTERDAM HOSP,DEPT MED PHYS & INFORMAT,DE BOELELAAN 1117,POB 7057 NL-1007 MB AMSTERDAM NETHERLANDS FREE UNIV AMSTERDAM HOSP,DEPT CARDIOL,INST CARDIOVASC RES ICAR VU NL-1007 MB AMSTERDAM NETHERLANDS UNIV PENN,DEPT RADIOL PHILADELPHIA PA 19104
Titolo Testata:
Magnetic resonance in medicine
fascicolo: 5, volume: 38, anno: 1997,
pagine: 803 - 810
SICI:
0740-3194(1997)38:5<803:MIIARR>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
NONINFARCTED MYOCARDIUM; SPATIAL MODULATION; MOTION TRACKING; WALL-MOTION; HUMAN-HEART; DYSFUNCTION; PERFUSION;
Keywords:
MYOCARDIAL INFARCTION; MYOCARDIAL CONTRACTION; REMODELING; MAGNETIC RESONANCE IMAGING;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
25
Recensione:
Indirizzi per estratti:
Citazione:
J.T. Marcus et al., "MYOCARDIAL-FUNCTION IN INFARCTED AND REMOTE REGIONS EARLY AFTER INFARCTION IN MAN - ASSESSMENT BY MAGNETIC-RESONANCE TAGGING AND STRAIN ANALYSIS", Magnetic resonance in medicine, 38(5), 1997, pp. 803-810

Abstract

Early after infarction in the perfusion bed of the left anterior descending coronary artery, cine MRI with spatial modulation of magnetization (SPAMM) tagging (7-mm grid) was used for short-and long-axis cardiac imaging, Two-dimensional strain analysis of triangular finite elements was performed between end-diastole and end-systole, Patients (n = 10) were compared with age-matched healthy subjects (n = 8), The anteroseptal region at midventricular level was considered representative for ''infarcted'' and the posterolateral region at basal level was considered ''remote'', The left ventricular end-diastolic volume index waslarger in the patients (69 +/- 15 ml/m(2) versus 56 +/- 4 ml/m(2), P < 0.05), Short-axis images showed in the infarcted region a decrease of first principal strain (greatest systolic lengthening: 1.10 +/-. 06 versus 1.27 +/- 0.04, P < 0.0001), and in the remote region an increase (1.48 +/- 0.11 versus 1.36 +/- 0.07, P < 0.025), The lateral and inferior ventricular regions at mid-and basal levels were found to function normally, Long-axis images yielded similar results, Early after infarction, regions with dysfunction, normal function, and hyperfunction can be delineated with MR tagging, The compensatory increased contraction in the remote region is possibly triggered by the Frank-Starling mechanism.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/04/20 alle ore 02:50:56