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Titolo:
Improved identification of viable myocardium using second harmonic imagingduring dobutamine stress echo cardiography
Autore:
Sozzi, FB; Poldermans, D; Bax, JJ; Elhendy, A; Vourvouri, EC; Valkema, R; De Sutter, J; Schinkel, AFL; Borghetti, A; Roelandt, JRTC;
Indirizzi:
Erasmus Univ, Med Ctr, Thoraxctr, NL-3015 GD Rotterdam, Netherlands Erasmus Univ Rotterdam Netherlands NL-3015 GD GD Rotterdam, Netherlands Univ Parma, Dept Med Nephrol & Hlth Sci, I-43100 Parma, Italy Univ Parma Parma Italy I-43100 Nephrol & Hlth Sci, I-43100 Parma, Italy
Titolo Testata:
HEART
fascicolo: 6, volume: 86, anno: 2001,
pagine: 672 - 678
SICI:
1355-6037(200112)86:6<672:IIOVMU>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
EMISSION COMPUTED-TOMOGRAPHY; LEFT-VENTRICULAR FUNCTION; CORONARY-ARTERY DISEASE; REDISTRIBUTION TL-201 TOMOGRAPHY; SURGICAL REVASCULARIZATION; HIBERNATING MYOCARDIUM; CONTRACTILE RESERVE; F-18 FLUORODEOXYGLUCOSE; ENDOCARDIAL BORDER; EJECTION FRACTION;
Keywords:
dobutamine stress echocardiography; second harmonic imaging; F-18-fluorodeoxyglucose imaging; myocardial viability;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Poldermans, D Erasmus Univ, Med Ctr, Thoraxctr, Molewaterpl 40, NL-3015 GDRotterdam, Netherlands Erasmus Univ Molewaterpl 40 Rotterdam Netherlands NL-3015 GD
Citazione:
F.B. Sozzi et al., "Improved identification of viable myocardium using second harmonic imagingduring dobutamine stress echo cardiography", HEART, 86(6), 2001, pp. 672-678

Abstract

Objective-To determine whether, compared with fundamental imaging, second harmonic imaging can improve the accuracy of dobutamine stress echocardiography for identifying viable myocardium, using nuclear imaging as a reference. Patients-30 patients with chronic left ventricular dysfunction (mean (SD) age, 60 (8) years; 22 men). Methods-Dobutamine stress echocardiography was carried out in all patientsusing both fundamental and second harmonic imaging. All patients underwentdual isotope simultaneous acquisition single photon emission computed tomography (DISA-SPECT) with tetrofosmin/F-18-fluorodeoxyglucose on a separate day. Myocardial viability was considered present by dobutamine stress echo cardiography when segments with severe dysfunction showed a biphasic sustained improvement or an ischaemic response. Viability criteria on DISA-SPECT were normal or mildly reduced perfusion and metabolism, or perfusion/metabolism mismatch. Results-Using fundamental imaging, 330 segments showed severe dysfunction at baseline; 144 (44%) were considered viable. The agreement between dobutamine stress echocardiography by fundamental imaging and DISA-SPECT was 78%,K = 0.56. Using second harmonic imaging, 288 segments showed severe dysfunction; 138 (48%) were viable. The agreement between dobutamine stress echocardiography and DISA-SPECT was significantly better when second harmonic imaging was used (89%, kappa = 0.77, p = 0.001 v fundamental imaging). Conclusions-Second harmonic imaging applied during dobutamine stress echo cardiography increases the agreement with DISA-SPECT for detecting myocardial viability.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/01/20 alle ore 10:28:05