Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
New noninvasive method for coronary flow reserve assessment - Contrast-enhanced transthoracic second harmonic echo Doppler
Autore:
Caiati, C; Montaldo, C; Zedda, N; Bina, A; Iliceto, S;
Indirizzi:
Univ Cagliari, Inst Cardiol, Cagliari, Italy Univ Cagliari Cagliari Italy iv Cagliari, Inst Cardiol, Cagliari, Italy
Titolo Testata:
CIRCULATION
fascicolo: 6, volume: 99, anno: 1999,
pagine: 771 - 778
SICI:
0009-7322(19990216)99:6<771:NNMFCF>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
BLOOD-FLOW; ARTERY; DIPYRIDAMOLE; VASODILATION; INJECTION; ADENOSINE; AGENT;
Keywords:
blood flow; coronary disease; contrast media; echocardiography;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
14
Recensione:
Indirizzi per estratti:
Indirizzo: Caiati, C Ospediari,ovanni di Dio, Cattedra & Div Cardiol, Via Osped 46, I-09124 Cagl Osped S Giovanni di Dio Via Osped 46 Cagliari Italy I-09124 agl
Citazione:
C. Caiati et al., "New noninvasive method for coronary flow reserve assessment - Contrast-enhanced transthoracic second harmonic echo Doppler", CIRCULATION, 99(6), 1999, pp. 771-778

Abstract

Background-We tested the hypothesis that blood flow velocity could be recorded in the left anterior descending coronary artery (LAD) during transthoracic echocardiography by use of second harmonic echo Doppler modality alongwith contrast enhancement (intravenous Levovist) at rest and after pharmacologically induced maximal vasodilation to assess coronary flow reserve (CFR) with a totally noninvasive approach. Methods and Results-Fifty-six consecutive patients undergoing coronary angiography underwent transthoracic contrast-enhanced pulsed-wave Doppler recording of blood flow velocity in the LAD by use of harmonic color Doppler asa guide at rest and after maximal vasodilation by dipyridamole infusion. Contrast enhancement with the harmonic mode greatly improved the success rate of recording adequate pulsed-wave Doppler signal in the LAD. CFR was (mean+/-SD) 1.54+/-0.7 in patients with (group 1) and 2.79+/-0.9 in patients without (group 2) significant LAD stenosis (lumen narrowing >70%) (P<0.001); sensitivity and specificity in detecting significant LAD stenosis were 86% and 90%, respectively. There was close agreement between CFRs determined bythis new method and intracoronary Doppler flow wire. Conclusions-Contrast-enhanced transthoracic echo Doppler with the harmonicmode is a feasible and promising technique for assessing CFR in a totally noninvasive way.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 05:01:07