scholarly journals Gated SPECT beyond myocardial perfusion: assessment of mechanical left ventricular synchrony

2021 ◽  
Author(s):  
Erick Alexánderson-Rosas ◽  
Salvador Hernández-Sandoval
Keyword(s):  
Myocardial Perfusion ◽  
Gated Spect ◽  
Left Ventricular ◽  
Ventricular Synchrony ◽  
Perfusion Assessment

scholarly journals The use of mechanical dyssynchrony for predicting response to cardiac resynchronization therapy in patients with non-ischemic cardiomyopathy

2021 ◽  
Vol 22 (Supplement_1) ◽  
Author(s):  
V Saushkin ◽  
YV Varlamova ◽  
AI Mishkina ◽  
DI Lebedev ◽  
SV Popov ◽  
...  
Keyword(s):  
Logistic Regression ◽  
Myocardial Perfusion ◽  
Cardiac Resynchronization Therapy ◽  
Ischemic Cardiomyopathy ◽  
Gated Spect ◽  
Mechanical Dyssynchrony ◽  
Left Ventricular ◽  
Cardiac Resynchronization ◽  
Resynchronization Therapy ◽  
Crt Response

Abstract Funding Acknowledgements Type of funding sources: None. Aim/Introduction: Assessment of mechanical dyssynchrony by myocardial perfusion gated-SPECT in patients with non-ischemic cardiomyopathy for predict response to cardiac resynchronization therapy (CRT). Materials and Methods  We examined 32 patients with non-ischemic cardiomyopathy before and six months after CRT.  Left ventricular mechanical dyssynchrony and contractility were assessed for all patients by myocardial perfusion gated-SPECT. The phase standard deviation (PSD), histogram bandwidth (HBW), phase histogram skewness (S) and phase histogram kurtosis (K) were used as an indicator of mechanical dyssynchrony for the both ventricles.  Results  Mechanical dyssynchrony of both ventricles before CRT was increased in all patients. Median value PSD 53°(41-61°), HBW 176°(136-202°), S 1,62(1,21-1,89), K 2,81(1,21-3,49). Six months after CRT 22(68%) respondents were identified. We divided the patients into two groups (responders and non-responders) and compared phase parameters. It was found that the PSD (44°(35-54°)) and HBW (158°(118-179°) in the responders were significantly lower than in the non-responders (PSD (68°(58-72°); HBW (205°(199-249°)). The value of phase histogram skewness and kurtosis in responders were significantly higher (Responders: S 1,77(1,62-2,02); K 3,03(2,60-3,58). Non-responders: S 1,21(0,93-1,31); K 1,21(0,19-1,46)).  We found that all four indicators of mechanical dyssynchrony can predict CRT response according to the results of univariate logistic regression analysis. Moreover, It was found that only phase histogram kurtosis (OR = 1.196, 95% CI 1.04-1.37) is an independent predictor of CRT response according to multivariate logistic regression. Conclusion  Radionuclide assessment of mechanical dyssynchrony may be the optimal diagnostic method for selecting patients with non-ischemic cardiomyopathy on CRT.

scholarly journals Relationships between blood pool and myocardial perfusion-gated SPECT global and regional left ventricular function measurements

2009 ◽  
Vol 30 (4) ◽  
pp. 292-299 ◽  
Author(s):  
Kenneth J. Nichols ◽  
Andrew Van Tosh ◽  
Yi Wang ◽  
Ji Chen ◽  
Ernest V. Garcia ◽  
...  
Keyword(s):  
Myocardial Perfusion ◽  
Left Ventricular Function ◽  
Ventricular Function ◽  
Gated Spect ◽  
Blood Pool ◽  
Left Ventricular ◽  
Regional Left Ventricular Function

Impact of myocardial perfusion gated-SPECT on the decision to perform coronary angiography in patients with left ventricular dysfunction of ischemic origin

2011 ◽  
Vol 30 (3) ◽  
pp. 141-146
Author(s):  
G. Romero-Farina ◽  
J. Candell-Riera ◽  
S. Aguadé-Bruix ◽  
J. Castell-Conesa ◽  
D. García-Dorado
Keyword(s):  
Coronary Angiography ◽  
Myocardial Perfusion ◽  
Left Ventricular Dysfunction ◽  
Gated Spect ◽  
Ventricular Dysfunction ◽  
Left Ventricular

scholarly journals Phase analysis to measure left ventricular dyssynchrony by Gated-SPECT myocardial perfusion imaging showed by two different software

2021 ◽  
Vol 32 (3) ◽  
pp. 384-397
Author(s):  
Víctor Marín Oyaga ◽  
Claudia Gutiérrez Villamil ◽  
Karen Dueñas Criado ◽  
Sinay Arévalo Leal
Keyword(s):  
Myocardial Perfusion Imaging ◽  
Myocardial Perfusion ◽  
Phase Analysis ◽  
Perfusion Imaging ◽  
Gated Spect ◽  
Left Ventricular ◽  
Left Ventricular Dyssynchrony ◽  
Spect Myocardial Perfusion Imaging ◽  
Ventricular Dyssynchrony ◽  
Spect Myocardial Perfusion

Conclusión Realizar el análisis fase de análisis por GS-PMI es factible. Sin embargo la DE mostró diferencias significativas entre los dos programas. Aunque los valores mostrados podrían ser utilizados como valores normales, se recomienda que éstos se obtengan y utilicen para cada programa por separado.

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