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Myocardial perfusion and left ventricular quantitative parameters obtained using gated myocardial SPECT: Comparison of three software packages

The aim of the present study was to compare Emory Cardiac Toolbox, Myovation, and Quantitative Gated SPECT software regarding the automatic measurements of perfusion and functional left ventricular (LV) quantitative parameters, summed stress score (SSS), perfusion defect score, LV ejection fraction...

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Published in:Journal of nuclear cardiology 2018-06, Vol.25 (3), p.911-924
Main Authors: Alexiou, Sotiria, Georgoulias, Panagiotis, Angelidis, George, Valotassiou, Varvara, Tsougos, Ioannis, Psimadas, Dimitrios, Lakiotis, Velissarios, Kaspiri, Agaristi, Alexopoulos, Dimitrios, Apostolopoulos, Dimitrios, Vassilakos, Pavlos
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cited_by cdi_FETCH-LOGICAL-c424t-d39f19d9937df97d7613233721a0bf463fa646994f4f6cfc200bac020c6fbfd33
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creator Alexiou, Sotiria
Georgoulias, Panagiotis
Angelidis, George
Valotassiou, Varvara
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Psimadas, Dimitrios
Lakiotis, Velissarios
Kaspiri, Agaristi
Alexopoulos, Dimitrios
Apostolopoulos, Dimitrios
Vassilakos, Pavlos
description The aim of the present study was to compare Emory Cardiac Toolbox, Myovation, and Quantitative Gated SPECT software regarding the automatic measurements of perfusion and functional left ventricular (LV) quantitative parameters, summed stress score (SSS), perfusion defect score, LV ejection fraction (LVEF), end-diastolic volume, and end-systolic volume (ESV). 99mTc-tetrofosmin gated SPECT studies were performed in 634 consecutive patients based on the one-day stress/rest protocol. Participants were divided into subgroups according to heart size (ESV cut-off value: 25 mL), perfusion (SSS >/≤3), and other patient/protocol-related factors. LVEF was categorized as normal (≥50%), mildly moderately impaired (35–49%), and severely abnormal (25 mL, and SSS >3 subgroups (intraclass correlation coefficients, ICCs 0.73–0.93). In SSS ≤3 subgroup, the correlation was excellent for LV functional parameters, but suboptimal for perfusion variables (ICCs 0.30–0.83). LVEF categorization revealed similar variability (discordance 18.1 and 11.1% for stress/rest LVEF values, respectively). Pair comparisons demonstrated considerable differences concerning all parameters for all patient subgroups. The statistical significance of our findings by ESV and SSS classifications was evaluated. Despite the significant concordance between software packages, considerable differences in mean values of myocardial perfusion and LV functional parameters were demonstrated.
doi_str_mv 10.1007/s12350-016-0730-x
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LVEF was categorized as normal (≥50%), mildly moderately impaired (35–49%), and severely abnormal (&lt;35%). The concordance between the packages was good to excellent, in overall population, ESV ≤25 mL, ESV &gt;25 mL, and SSS &gt;3 subgroups (intraclass correlation coefficients, ICCs 0.73–0.93). In SSS ≤3 subgroup, the correlation was excellent for LV functional parameters, but suboptimal for perfusion variables (ICCs 0.30–0.83). LVEF categorization revealed similar variability (discordance 18.1 and 11.1% for stress/rest LVEF values, respectively). Pair comparisons demonstrated considerable differences concerning all parameters for all patient subgroups. The statistical significance of our findings by ESV and SSS classifications was evaluated. 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1532-6551
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subjects Aged
Algorithms
Cardiology
ECTb
Ejection fraction
Exercise Test
Female
Gated Blood-Pool Imaging
Gated SPECT
Humans
Imaging
left ventricular ejection fraction
left ventricular volumes
Male
Medicine
Medicine & Public Health
Middle Aged
Myovation
Nuclear Medicine
Original Article
QGS
Radiology
Reproducibility of Results
Sensitivity and Specificity
Software
Software packages
Stroke Volume - physiology
Technetium
Tomography, Emission-Computed, Single-Photon
Ventricular Dysfunction, Left - diagnostic imaging
Ventricular Dysfunction, Left - physiopathology
title Myocardial perfusion and left ventricular quantitative parameters obtained using gated myocardial SPECT: Comparison of three software packages
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