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Assessment of left ventricular dyssynchrony by SPECT myocardial perfusion imaging in post myocardial infartion patients
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Abstract
SUMMARY
Objective: to evaluate left ventricular synchrony parameters using gated myocardial perfusion single photon emission computed tomography
(GSPECT) in post myocardial infarction (MI) patients.
Subject and methods: a cross - sectional study was conducted on 34 subjects without cardiovascular disease and 104 post-MI patients.
Results: left ventricular dyssynchrony parameters including PSD and HBW were 48.7 ± 19.49 and 154.95 ± 71.97 in post-MI group compared to
17.5 ± 7.24 and 53.9 ± 15.14 respectively in control group (p<0.01). 77% and 81% of post-MI patients had increased PSD and HBW with left ventricular dyssynchrony. PSD and HBW has increased significantly in post-MI patients
with NYHA III-V, low EF compared to NYHA I-II patient group without left ventricular dysfunction.
Conclusion: left ventricular dyssynchrony parameters were commonly detected by gated SPECT in post-MI patients. PSD and HBW increased significantly in post-MI patients and had relationships to NYHA and left ventricular dysfunction.
Article Details
Keywords
myocardial perfusion imaging, left ventricular dyssynchrony, myocardial infarction
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