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Communication Dans Un Congrès Année : 2023

Assessment of the Evolution of Temporal Segmental Strain in a Longitudinal Study of Myocardial Infarction

Résumé

In this study, we propose an approach for the assessment of the evolution of heart function in a population of ST-elevation myocardial infarction (STEMI) patients. The patients were imaged using cine MRI with late gadolinium enhancement at 1 month after STEMI and at follow-up 12 months later. We reduced the dimensionality of the temporal strain data in order to represent the segmental strain patterns found in these individuals in a more compact manner. Then, this compact description of strain was used to identify left ventricular segments with abnormal function, as compared to a control group of healthy patients, and to investigate if 1) the compact representation of the patterns is more effective in predicting scarring than traditional measurements; and 2) how the strain patterns evolve over the following months. To that end, we offer a method for tracking strain evolution and, in particular, comparing infarcted regions with remote regions and healthy hearts. On a population of 29 STEMI patients and 18 controls, we found that, despite considering the extent of the lesion, we were not able to identify a clear mechanism of evolution; nonetheless, the technique may be beneficial in subsequent, larger longitudinal studies to quantitatively characterise patient outcomes.
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Dates et versions

hal-04096727 , version 1 (13-05-2023)

Identifiants

  • HAL Id : hal-04096727 , version 1

Citer

Bianca Freytag, Nicolas Duchateau, Lorena Petrusca, Jacques Ohayon, P Croisille, et al.. Assessment of the Evolution of Temporal Segmental Strain in a Longitudinal Study of Myocardial Infarction. 12th International Conferenceon Functional Imaging and Modeling of the Heart (FIMH 2023), LNCS, Jun 2023, Lyon, France. pp.678-687. ⟨hal-04096727⟩
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