scholarly journals Possibilities of Evaluating the Dynamics of Left Ventricular Perfusion and Contractility in Patients with Chronic Heart Failure after Implantation of a Heart Contractility Modulator Using Perfusion Single-Photon Emission Computed Tomography

2021 ◽  
Vol 17 (2) ◽  
pp. 263-269
Author(s):  
V. A. Amanatova ◽  
A. A. Safiullina ◽  
T. M. Uskach ◽  
A. A. Ansheles ◽  
V. B. Sergienko ◽  
...  
Keyword(s):  
Heart Failure ◽  
Chronic Heart Failure ◽  
Nuclear Cardiology ◽  
Single Photon ◽  
Photon Emission ◽  
Cardiac Contractility ◽  
Left Ventricular ◽  
Emission Computed Tomography ◽  
Single Photon Emission ◽  
Heart Contractility

Perfusion scintigraphy and single-photon emission tomography of the myocardium are promising methods for complex assessment of the state of the left ventricle myocardium in patients with chronic heart failure. These methods of nuclear cardiology can be performed in patients with reduced renal function, as well as the presence of implanted devices such as implantable cardioverters-defibrillators, resynchronizing devices and cardiac modulating therapy, which is their undeniable advantage. The reproducibility of the method is ensured bu fully automated calculation of parameters of myocardial perfusion and contractility. To date, there are no data in the literature on the use of nuclear cardiology methods as an imaging technique in patients with cardiac contractility modulation devises. This paper describes the current possibilities and prospects of nuclear medicine methods in patients with chronic heart failure after implantation of a heart contractility modulator.

scholarly journals COMPARISON OF LEFT VENTRICULAR CONTRACTILITY IN SILENT MYOCARDIAL ISCHEMIA BY ECHOCARDIOGRAPHY AND PERFUSION SCINTIGRAPHY

2021 ◽  
Vol 14 (2) ◽  
pp. 46-51
Author(s):  
ALSU I. ABDRAKHMANOVA ◽  
◽  
NIKOLAY A. TSIBULKIN ◽  
NAIL B. AMIROV ◽  
◽  
...  
Keyword(s):  
Single Photon ◽  
Photon Emission ◽  
Left Ventricular ◽  
Silent Myocardial Ischemia ◽  
Emission Computed Tomography ◽  
Ventricular Contractility ◽  
Left Ventricular Contractility ◽  
Single Photon Emission ◽  
Single Photon Emission Computed ◽  
Photon Emission Computed Tomography

The aim of the study was to compare the methods of echocardiography and single-photon emission computed tomography in assessing local left ventricular contractility in silent myocardial ischemia; to consider the possibility of comparing the data of echocardiography and single-photon emission computed tomography of myocardium in such patients.

P606High intermodality variability in ejection fraction measured by echocardiography, cardiac magnetic resonance and single photon emission computed tomography in chronic coronary artery disease patients

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
T M Stokke ◽  
S I Sarvari ◽  
A W Bjerring ◽  
K H Haugaa ◽  
M T Elahi ◽  
...  
Keyword(s):  
Single Photon ◽  
Photon Emission ◽  
Left Ventricular ◽  
Emission Computed Tomography ◽  
Single Photon Emission ◽  
Chronic Coronary Artery Disease ◽  
Single Photon Emission Computed ◽  
Artery Disease ◽  
Dimensional Echocardiography ◽  
Photon Emission Computed Tomography

Abstract Background Clinical treatment strategies are often based on measurement of left ventricular ejection fraction (LVEF). There is limited evidence about variations in LVEF when measured by different imaging modalities. Purpose To investigate the intermodality variability of LVEF measured by two-dimensional echocardiography (2DE), three-dimensional echocardiography (3DE), cardiac magnetic resonance (CMR), and single photon emission computed tomography (SPECT) in patients with chronic coronary artery disease (CAD). Methods Patients from a multicenter study (DOPPLER-CIP – Determining optimal noninvasive parameters for the prediction of left ventricular remodeling in chronic ischemic patients) with chronic CAD were included. LVEF was measured by CMR and at least one additional modality. In each modality, LVEF was measured by a core laboratory independently of the other modalities. Measurements of LVEF by CMR were compared to 2DE, 3DE and SPECT using correlation and Bland-Altman plots. Results A total of 343 patients were included. Mean age was 63.9±8.3 years and 253 (74%) were males. Mean LVEF by CMR was 61.8±11.6%. Correlations between CMR LVEF and other modalities were moderate for 2DE and 3DE, and good for SPECT (Figure A-C). CMR had significantly greater correlation to SPECT, compared to 2DE and 3DE. Bland-Altman plots indicated relatively wide limits of agreement between all modalities, ranging from 31% to 42% (Figure, D-F). Mean absolute difference of LVEF between CMR and other modalities were 8.5% for 2DE, 9.0% for 3DE, and 8.3% for SPECT. The percentage of measurements that fell within a range of 5% difference compared to CMR LVEF was 41% for 2DE, 34% for 3DE and 37% for SPECT (all p>0.05). Conclusions In a multicenter study with chronic CAD patients, LVEF assessed by CMR had better correlation to SPECT, compared to 2DE and 3DE. However, there was considerable variability among all three modalities that were compared to CMR. Awareness of these variations are important in clinical management.

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