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Titolo:
COMPARISON OF TC-99M SESTAMIBI-GATED TOMOGRAPHIC PERFUSION IMAGING WITH ECHOCARDIOGRAPHY AND ELECTROCARDIOGRAPHY FOR DETERMINATION OF LEFT-VENTRICULAR MASS
Autore:
WILLIAMS KA; LANG RM; REBA RC; TAILLON LA;
Indirizzi:
UNIV CHICAGO,DEPT MED CARDIOL,5841 S MARYLAND AVE MC4057 CHICAGO IL 60637 UNIV CHICAGO,DEPT RADIOL NUCL MED CHICAGO IL 60637
Titolo Testata:
The American journal of cardiology
fascicolo: 9, volume: 77, anno: 1996,
pagine: 750 - 755
SICI:
0002-9149(1996)77:9<750:COTSTP>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
EMISSION COMPUTED-TOMOGRAPHY; MYOCARDIAL-INFARCTION; TL-201; HYPERTROPHY; HEART; SPECT; QUANTITATION; ISONITRILE; DISEASE; SIZE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
30
Recensione:
Indirizzi per estratti:
Citazione:
K.A. Williams et al., "COMPARISON OF TC-99M SESTAMIBI-GATED TOMOGRAPHIC PERFUSION IMAGING WITH ECHOCARDIOGRAPHY AND ELECTROCARDIOGRAPHY FOR DETERMINATION OF LEFT-VENTRICULAR MASS", The American journal of cardiology, 77(9), 1996, pp. 750-755

Abstract

Left ventricular (LV) mass estimates obtained from poststress gated single-photon emission computed tomographic (SPECT) perfusion images were compared with 2-dimensionally targeted M-mode echocardiograms and with resting electrocardiographic voltage in 32 patients with stress perfusion scans that were either normal or only mildly abnormal, Myocardial pixel volumes were obtained from SPECT transaxial slices at end-diastole, end-systole, and summed (''ungated'') static reformatted SPECTimages at 2 levels of background subtraction, 37.5% and 35% of peak myocardial activity. The S-wave amplitude in lead V-1 and the R-wave amplitude in V-5 were summed for an electrocardiographic index of voltage. Echocardiographic LV moss was calculated using the modified Penn convention formula. SPECT myocardial mass estimates were significantly greater at diastole when compared with systolic or summed images, Therewas a moderate, although highly significant, correlation bs!tween echocardiographic and SPECT indexes of LV mass with the lower (35%) background threshold (r = 0.59, 0.60, and 0.53 for diastole, summed, and systole, each p < 0.001), The diastolic SPECT estimate of LV mass correlation with electrocardiographic voltage (r = 0.56) was superior to thecorrelation between echocardiography and electrocardiography (r = 0.30). With use of published criteria for the presence of LV hypertrophy on echocardiography, diastolic and systolic gated SPECT predicted echocardiographic results with 78% accuracy.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/11/20 alle ore 22:38:51