Assessing Heart Function After Heart Attacks
Author Information
Author(s): Shafi Nabil A, Bertman Kathleen, Yoon Andrew, Toole Rena, Ronin Matthew, Pollack Simcha, Reichek Nathaniel, Kadiyala Madhavi
Primary Institution: St. Francis Hospital- The Heart Center, Roslyn, NY, USA
Hypothesis
The study aims to characterize left ventricular global and regional strains in patients with prior myocardial infarction using FT-MRI and determine the relationship of strains to infarct size, location, and LV ejection fraction.
Conclusion
FT-MRI allows for detailed assessment of heart function in patients with heart attacks, showing decreased global strain and preserved longitudinal strain in most cases.
Supporting Evidence
- Peak global Ecc Epi and Ecc Endo were decreased in all MI patients compared to normals.
- Peak Ell strain was preserved in most infarcts except in LAD infarcts.
- The best predictor of reduced LVEF in MI patients was reduced global Ecc Endo.
Takeaway
Doctors used a special MRI to see how well the heart works after a heart attack, finding that most parts of the heart still work well, except for some areas.
Methodology
Eighty patients with a history of myocardial infarction were assessed using feature tracking MRI to measure heart strain and compared to 60 healthy subjects.
Participant Demographics
Mean age was 64.4 years, with varying left ventricular ejection fractions and infarct sizes across different coronary territories.
Statistical Information
P-Value
p<0.0001
Statistical Significance
p<0.01
Digital Object Identifier (DOI)
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