Abstract
Forty-two patients with clinical signs of coronary insuficiency underwent cineangiographic and radioisotopic examinations with the purpose of analysing the correlation between the values of left ventricle ejection fraction (LVEF) obtained by both methods. The values of EF obtained by the hemodynamic method (HEMO) ranged from 0.14 to 0.85 (x-bar = 0.566) and by radioisotopic method (RM) from 0.22 to 0.89 (x-bar = 0.573). The Student T test did not demonstrate statistically significant differences between the two methods (mean of differences = 0.007; t = 0.38 and p {ge} 0.353). A regression equation was obtained in order to estimate the EF by HEMO deriving from results obtained by RM (y = 0.11 + 0.80x) and to estimate the EF through RN from the results obtained by HEMO (x = 0.08 + 0.86y), where y = hemodynamic method and x = radioisotopic method. The authors conclude that the calculation of the EF by the methods used showed a good correlation and that this fact is evidenced by the elevated Pearson's correlation coefficient (r = 0.833). (author).
Ascer, E;
Pimentel Filho, W A;
Martins, L R.F.;
Marioni Filho, H;
Queiroga Filho, A F;
Alonso, G;
Germek, O A;
Thom, A F;
Souza, J E.M.R.
[1]
- Instituto Dante Pazzanese de Cardiologia, Sao Paulo, SP (Brazil)
Citation Formats
Ascer, E, Pimentel Filho, W A, Martins, L R.F., Marioni Filho, H, Queiroga Filho, A F, Alonso, G, Germek, O A, Thom, A F, and Souza, J E.M.R.
Left ventricle ejection fraction obtained by radioisotopic angiocardiography. Correlation between the values of the conventional ventriclegraphy. Fracao de ejecao do ventriculo esquerdo obtida por angiocardiografia radioisotopica. Correlacao com os valores fornecidos pela ventriculografia convencional.
Brazil: N. p.,
1983.
Web.
Ascer, E, Pimentel Filho, W A, Martins, L R.F., Marioni Filho, H, Queiroga Filho, A F, Alonso, G, Germek, O A, Thom, A F, & Souza, J E.M.R.
Left ventricle ejection fraction obtained by radioisotopic angiocardiography. Correlation between the values of the conventional ventriclegraphy. Fracao de ejecao do ventriculo esquerdo obtida por angiocardiografia radioisotopica. Correlacao com os valores fornecidos pela ventriculografia convencional.
Brazil.
Ascer, E, Pimentel Filho, W A, Martins, L R.F., Marioni Filho, H, Queiroga Filho, A F, Alonso, G, Germek, O A, Thom, A F, and Souza, J E.M.R.
1983.
"Left ventricle ejection fraction obtained by radioisotopic angiocardiography. Correlation between the values of the conventional ventriclegraphy. Fracao de ejecao do ventriculo esquerdo obtida por angiocardiografia radioisotopica. Correlacao com os valores fornecidos pela ventriculografia convencional."
Brazil.
@misc{etde_7063486,
title = {Left ventricle ejection fraction obtained by radioisotopic angiocardiography. Correlation between the values of the conventional ventriclegraphy. Fracao de ejecao do ventriculo esquerdo obtida por angiocardiografia radioisotopica. Correlacao com os valores fornecidos pela ventriculografia convencional}
author = {Ascer, E, Pimentel Filho, W A, Martins, L R.F., Marioni Filho, H, Queiroga Filho, A F, Alonso, G, Germek, O A, Thom, A F, and Souza, J E.M.R.}
abstractNote = {Forty-two patients with clinical signs of coronary insuficiency underwent cineangiographic and radioisotopic examinations with the purpose of analysing the correlation between the values of left ventricle ejection fraction (LVEF) obtained by both methods. The values of EF obtained by the hemodynamic method (HEMO) ranged from 0.14 to 0.85 (x-bar = 0.566) and by radioisotopic method (RM) from 0.22 to 0.89 (x-bar = 0.573). The Student T test did not demonstrate statistically significant differences between the two methods (mean of differences = 0.007; t = 0.38 and p {ge} 0.353). A regression equation was obtained in order to estimate the EF by HEMO deriving from results obtained by RM (y = 0.11 + 0.80x) and to estimate the EF through RN from the results obtained by HEMO (x = 0.08 + 0.86y), where y = hemodynamic method and x = radioisotopic method. The authors conclude that the calculation of the EF by the methods used showed a good correlation and that this fact is evidenced by the elevated Pearson's correlation coefficient (r = 0.833). (author).}
journal = []
volume = {40:2}
journal type = {AC}
place = {Brazil}
year = {1983}
month = {Feb}
}
title = {Left ventricle ejection fraction obtained by radioisotopic angiocardiography. Correlation between the values of the conventional ventriclegraphy. Fracao de ejecao do ventriculo esquerdo obtida por angiocardiografia radioisotopica. Correlacao com os valores fornecidos pela ventriculografia convencional}
author = {Ascer, E, Pimentel Filho, W A, Martins, L R.F., Marioni Filho, H, Queiroga Filho, A F, Alonso, G, Germek, O A, Thom, A F, and Souza, J E.M.R.}
abstractNote = {Forty-two patients with clinical signs of coronary insuficiency underwent cineangiographic and radioisotopic examinations with the purpose of analysing the correlation between the values of left ventricle ejection fraction (LVEF) obtained by both methods. The values of EF obtained by the hemodynamic method (HEMO) ranged from 0.14 to 0.85 (x-bar = 0.566) and by radioisotopic method (RM) from 0.22 to 0.89 (x-bar = 0.573). The Student T test did not demonstrate statistically significant differences between the two methods (mean of differences = 0.007; t = 0.38 and p {ge} 0.353). A regression equation was obtained in order to estimate the EF by HEMO deriving from results obtained by RM (y = 0.11 + 0.80x) and to estimate the EF through RN from the results obtained by HEMO (x = 0.08 + 0.86y), where y = hemodynamic method and x = radioisotopic method. The authors conclude that the calculation of the EF by the methods used showed a good correlation and that this fact is evidenced by the elevated Pearson's correlation coefficient (r = 0.833). (author).}
journal = []
volume = {40:2}
journal type = {AC}
place = {Brazil}
year = {1983}
month = {Feb}
}