Aortic Valve Area and Strain Measurements by Cardiac MRI and Transthoracic Echocardiography in Severe Aortic Stenosis with Normal Left Ventricular Function

• Published in: Iranian journal of medical sciences 2023-07, Vol.48 (4), p.370-378
• Main Authors: Rezaeian, Nahid, Hosseini, Leila, Samiei, Niloufar, Azimian, Maryam, Rashidinejad, Alireza, Toloueitabar, Yaser, Mehdi Hemmati Komasi, Mohammad, Shayan, Leila, Asadian, Sanaz
• Format: Article
• Language: English
• Subjects: Aortic stenosis; Aortic valve stenosis; Comparative analysis; Echocardiography; Magnetic resonance imaging; magnetic resonance imaging (mri); Medical research; Medicine, Experimental; Original; ventricular function
• ISSN: 0253-0716; 1735-3688
• DOI: 10.30476/ijms.2022.94552.2590

Transthoracic echocardiography (TTE) is the recommended imaging technique for the evaluation of patients with aortic stenosis (AS). However, in cases with inconclusive findings, cardiac magnetic resonance (CMR) planimetry is used to grade AS severity. This study aimed to compare the results derived from TTE and CMR in patients with severe AS with normal left ventricular (LV) function. In a prospective study, 20 patients with severe AS were recruited and data derived from TTE and CMR modalities were compared with the archived records of 28 age- and sex-matched healthy controls. The data included aortic valve area (AVA), MRI-derived biventricular global strains, and TTE-derived global longitudinal strain (GLS). SPSS software was used to analyze the data with independent samples test, intraclass correlation coefficient (ICC), and Pearson correlation. P