Perfusión y función ventricular en SPECT cardiaco y coronariografía del mismo día según localización en enfermedad de un vaso / Single-photon emission computed tomography for the assessment of ventricular perfusion and function
Rev. méd. Chile
; 141(9): 1136-1142, set. 2013. ilus, tab
Article
em Es
| LILACS
| ID: lil-699680
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ABSTRACT
Single-photon emission computed tomography (SPECT) can be used as a non-invasive tool for the assessment of coronary perfusion. Aim:
To assess ventricular perfusion and function by SPECT in patients with single vessel coronary artery disease. Material andMethods:
Among patients with indications for a coronary artery angiography, those with significant lesions in one vessel, were selected for the study. Within 24 hours, cardiac SPECT examinations on basal conditions and after high doses of dipyridamole, were performed. SPECT data from 38 patients with a low probability of coronary artery disease was used for comparisons.Results:
Ten patients aged 61 ± 8 years (seven men) were studied. Visual analysis of SPECT revealed signs suggestive of ischemia in eight patients. The remaining two patients did not have perfusion disturbances. SPECT detected eight of ten abnormal vessels reported in the coronary artery angiography. There were two false negative results Summed stress, summed rest and summed difference scores were 9.78 ± 6.51, 3.22 ± 5.07 and 6.33 ± 4.97, respectively. The ejection fractions under stress and at rest were 53 ± 11.7% and 61 ± 15.7% respectively (p < 0.01). The figures for the control group were 69.1 ± 13.5% and 75.2 ± 12.04% respectively (significantly different from patients). Two patients had a summed motion score above 14.9. Likewise, two patients had a summed thickening score above 10.9.Conclusions:
SPECT detected 80% of coronary lesions found during coronary artery angiography. Visual analysis of perfusion is highly reliable for diagnosis. Quantitative parameters must be considered only as reference parameters.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
LILACS
Assunto principal:
Doença da Artéria Coronariana
/
Disfunção Ventricular Esquerda
Tipo de estudo:
Observational_studies
Limite:
Aged
/
Female
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Humans
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Male
Idioma:
Es
Revista:
Rev. méd. Chile
Assunto da revista:
MEDICINA
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
Chile
País de publicação:
Chile