Assessment of left ventricular mechanical dyssynchrony by phase analysis of gated-SPECT myocardial perfusion imaging and tissue Doppler imaging: Comparison between QGS and ECTb software packages
| Autor: | Hadi Malek, Ahmad Bitarafan-Rajabi, Hasan Firoozabadi, Majid Haghjoo, Ahmad Amin, Fereydoon Rastgou, Nahid Yaghoobi, Maryam Shojaeifard, Tahereh Ghaedian, Hossein Barati, Hedieh Amouzadeh |
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| Rok vydání: | 2014 |
| Předmět: |
Male
medicine.medical_specialty Gated SPECT Population Sensitivity and Specificity Doppler imaging Ventricular Dysfunction Left Myocardial perfusion imaging Internal medicine Image Interpretation Computer-Assisted Prohibitins medicine Humans Radiology Nuclear Medicine and imaging education Tomography Emission-Computed Single-Photon education.field_of_study Ejection fraction medicine.diagnostic_test business.industry Myocardial Perfusion Imaging Reproducibility of Results Middle Aged Image Enhancement medicine.disease Heart failure Cardiology Elasticity Imaging Techniques Female Tomography Cardiology and Cardiovascular Medicine business Nuclear medicine Algorithms Software Emission computed tomography |
| Zdroj: | Journal of Nuclear Cardiology. 21:1062-1071 |
| ISSN: | 1532-6551 1071-3581 |
| Popis: | Recently, the phase analysis of gated single-photon emission computed tomography (SPECT) myocardial perfusion imaging (MPI) has become feasible via several software packages for the evaluation of left ventricular mechanical dyssynchrony. We compared two quantitative software packages, quantitative gated SPECT (QGS) and Emory cardiac toolbox (ECTb), with tissue Doppler imaging (TDI) as the conventional method for the evaluation of left ventricular mechanical dyssynchrony. Thirty-one patients with severe heart failure (ejection fraction ≤35%) and regular heart rhythm, who referred for gated-SPECT MPI, were enrolled. TDI was performed within 3 days after MPI. Dyssynchrony parameters derived from gated-SPECT MPI were analyzed by QGS and ECTb and were compared with the Yu index and septal-lateral wall delay measured by TDI. QGS and ECTb showed a good correlation for assessment of phase histogram bandwidth (PHB) and phase standard deviation (PSD) (r = 0.664 and r = 0.731, P |
| Databáze: | OpenAIRE |
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