Catalogo Articoli (Spogli Riviste)
OPAC HELP
Titolo: ACCURATE MEASUREMENT OF LEFTVENTRICULAR EJECTION FRACTION BY 3DIMENSIONAL ECHOCARDIOGRAPHY  A COMPARISON WITH RADIONUCLIDE ANGIOGRAPHY
Autore: NOSIR YFM; FIORETTI PM; VLETTER WB; BOERSMAN E; SALUSTRI A; POSTMAN JT; REIJS AEM; TENCATE FJ; ROELANDT JRTC;
 Indirizzi:
 THORAX CTR ROTTERDAM,BA 300,DR MOLEWATERPLEIN 40 NL3015 GD ROTTERDAMNETHERLANDS UNIV ROTTERDAM HOSP,THORAXCTR,DIV CARDIOL ROTTERDAM NETHERLANDS UNIV ROTTERDAM HOSP,DEPT NUCL MED ROTTERDAM NETHERLANDS ERASMUS UNIV ROTTERDAM ROTTERDAM NETHERLANDS
 Titolo Testata:
 Circulation
fascicolo: 3,
volume: 94,
anno: 1996,
pagine: 460  466
 SICI:
 00097322(1996)94:3<460:AMOLEF>2.0.ZU;26
 Fonte:
 ISI
 Lingua:
 ENG
 Soggetto:
 3DIMENSIONAL ECHOCARDIOGRAPHY; MYOCARDIALINFARCTION; VOLUME; RECONSTRUCTION; VALIDATION; MORTALITY;
 Keywords:
 ECHOCARDIOGRAPHY; ANGIOGRAPHY; CARDIAC VOLUME;
 Tipo documento:
 Article
 Natura:
 Periodico
 Settore Disciplinare:
 Science Citation Index Expanded
 Science Citation Index Expanded
 Citazioni:
 22
 Recensione:
 Indirizzi per estratti:



 Citazione:
 Y.F.M. Nosir et al., "ACCURATE MEASUREMENT OF LEFTVENTRICULAR EJECTION FRACTION BY 3DIMENSIONAL ECHOCARDIOGRAPHY  A COMPARISON WITH RADIONUCLIDE ANGIOGRAPHY", Circulation, 94(3), 1996, pp. 460466
Abstract
Background Threedimensional echocardiography is a promising technique for calculation of left ventricular ejection fraction, because it allows its measurement without geometric assumptions. However, few data exist that study its reproducibility and accuracy in patients. Methodsand Results Twentyfive patients underwent radionuclide angiography and threedimensional echocardiography that used the rotational technique (2 degrees interval and ECG and respiratory gating). Left ventricular volume and ejection fraction were calculated by use of Simpson's rule at a slice thickness of 3 mm. Analyses were performed to define the largest slice thickness required for accurate calculation of left ventricular volume and ejection fraction. Threedimensional echocardiography showed excellent correlation with radionuclide angiography for calculation of left ventricular ejection fraction (mean+/SD, 38.9+/19.8 and 38.5+/18.0, respectively; r=.99); their mean difference was notsignificant (0.03+/0.17; P=3), and they had a close limit of agreement (0.385, 0.315). Intraobserver variability for radionuclide angiography and threedimensional echocardiography was 4.2% and 2.6%, respectively, whereas interobserver variability was 6.2% and 5.3%, respectively. There was no significant difference between left ventricular volume adn ejection fraction calculated at a slice thickness of 3 mm and that calculated at different slice thicknesses up to 24 mm. However, thestandard deviation of the mean difference showed a stepwise increase,particularly at thicknesses >15 mm. At a slice thickness of 15 mm, the probability of threedimensional echocardiography to detect greater than or equal to 6% difference in ejection fraction was 80%. Conclusions Threedimensional echocardiography has excellent correlation with radionuclide angiography for calculation of left ventricular ejection fraction in patients and has an observer variability similar to that ofradionuclide angiography. We recommend the use of a 15mmthick slicefor accurate and rapid measurement of left ventricular volume and ejection fraction.
ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/01/20 alle ore 13:54:21