Cardiac Magnetic Resonance Imaging Findings of the Sigmoid-Shaped Interventricular Septum

Objective: Sigmoid-shaped interventricular septum may have effects on cardiac contractility functions. This study aims to investigate the relationship between basal septal thickness and ejection fraction rates in patients with sigmoid-shaped interventricular septum.

Methods: From February 2015 to June 2020, consecutive patients who had undergone cardiac magnetic resonance imaging were analyzed in this retrospective study. Basal, mid-, and apical septal thicknesses of these patients were measured, and ejection fraction rates were calculated. Spearman correlation analysis was performed to determine the relationship.

Results: A total of 550 patients were analyzed, and 15 (7 men, 8 women) of them were found to have sigmoid-shaped interventricular septum. The mean age was 64 ± 16 years. A moderate correlation (rs=0.533) was found between basal septal thickness and ejection fraction. We also found moderate (rs=0.487) and high (rs=0.698) correlation of mid-septal and apical septal thicknesses with ejection fraction, respectively.

Conclusion: The basal septal thickness of the patients with sigmoid-shaped interventricular septum is related to the ejection fraction rates. The measurement of these thicknesses is important for the changes in the ejection fraction rates, which is one of the cardiac prognostic criteria.

Cite this article as: Çilengir AH, Altay S, Sinci KA, Çilengir N, Gelal F, Uluç E. Cardiac magnetic resonance imaging findings of the sigmoid-shaped interventricular septum. Arch Basic Clin Res., 2023;5(2):245-249.