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Titolo:
3-DIMENSIONAL ECHOCARDIOGRAPHY COMPARED TO 2-DIMENSIONAL ECHOCARDIOGRAPHY FOR MEASUREMENT OF LEFT-VENTRICULAR MASS ANATOMIC VALIDATION IN AN OPEN-CHEST CANINE MODEL
Autore:
SAPIN PM; GOPAL AS; CLARKE GB; SMITH MD; KING DL;
Indirizzi:
UNIV KENTUCKY,MED CTR,DIV CARDIOL MN670,800 ROSE ST LEXINGTON KY 40536
Titolo Testata:
American journal of hypertension
fascicolo: 5, volume: 9, anno: 1996,
pagine: 467 - 474
SICI:
0895-7061(1996)9:5<467:3ECT2E>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
3-DIMENSIONAL ECHOCARDIOGRAPHY; HYPERTENSION; HYPERTROPHY; VOLUME;
Keywords:
ECHOCARDIOGRAPHY; HEART FUNCTION TESTS; CARDIAC VOLUME; COMPUTER ASSISTED IMAGE PROCESSING; MONGREL DOGS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
25
Recensione:
Indirizzi per estratti:
Citazione:
P.M. Sapin et al., "3-DIMENSIONAL ECHOCARDIOGRAPHY COMPARED TO 2-DIMENSIONAL ECHOCARDIOGRAPHY FOR MEASUREMENT OF LEFT-VENTRICULAR MASS ANATOMIC VALIDATION IN AN OPEN-CHEST CANINE MODEL", American journal of hypertension, 9(5), 1996, pp. 467-474

Abstract

A three-dimensional echocardiographic system has been developed that can accurately compute left ventricular mass in vitro. This study was designed to validate the new echocardiographic system for the measurement of left ventricular mass in vivo and to compare the accuracy of three-dimensional echocardiography to the accuracy of conventional two-dimensional echocardiography for measuring left ventricular mass, Echocardiographic imaging was performed 6 h following coronary ligation in 20 open chest dogs, at which time the heart was excised and the left ventricle weighed. Three-dimensional echocardiography used multiple short axis sections and polyhedral surface reconstruction to compute myocardial volume. The two dimensional methods employed the truncated ellipsoid model and the area-length model. Myocardial volume was multiplied by 1.05 g/cc and echocardiographic mass estimates were compared to the true left ventricular weight. Three-dimensional echocardiography provided the best correlation (r = 0.96, v r = 0.88 and r = 0.83 for thetruncated-ellipsoid and area-length methods, respectively), and the lowest standard error of the estimate for the regression equation (+/- 5.5 g v +/- 11.0 g and +/- 14.6 g, respectively). Three dimensional echocardiography also had the lowest standard deviation for the echo-true mass differences (+/- 5.8 g v +/- 10.7 g and +/- 14.2 g) and a lowerroot mean square percent error (6.8% v 12.6% and 12.7%). In this openchest canine model, three-dimensional echocardiography is more accurate than standard two-dimensional echocardiographic methods for measuring left ventricular mass.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/03/20 alle ore 11:06:11