Efficacy of Novel Noncontrast Cardiac Magnetic Resonance Methods in Indicating Fibrosis in Hypertrophic Cardiomyopathy

Objective. In hypertrophic cardiomyopathy (HCM), myocardial fibrosis is routinely shown by late gadolinium enhancement (LGE) in cardiac magnetic resonance (CMR) imaging. We evaluated the efficacy of 2 novel contrast-free CMR methods, namely, diffusion-weighted imaging (DWI) and feature-tracking (FT)...

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Main Authors: Maedeh Sharifian, Nahid Rezaeian, Sanaz Asadian, Ali Mohammadzadeh, Ali Nahardani, Kianosh Kasani, Yaser Toloueitabar, Ali Mohammad Farahmand, Leila Hosseini
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Cardiology Research and Practice
Online Access:http://dx.doi.org/10.1155/2021/9931136
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author Maedeh Sharifian
Nahid Rezaeian
Sanaz Asadian
Ali Mohammadzadeh
Ali Nahardani
Kianosh Kasani
Yaser Toloueitabar
Ali Mohammad Farahmand
Leila Hosseini
author_facet Maedeh Sharifian
Nahid Rezaeian
Sanaz Asadian
Ali Mohammadzadeh
Ali Nahardani
Kianosh Kasani
Yaser Toloueitabar
Ali Mohammad Farahmand
Leila Hosseini
author_sort Maedeh Sharifian
collection DOAJ
description Objective. In hypertrophic cardiomyopathy (HCM), myocardial fibrosis is routinely shown by late gadolinium enhancement (LGE) in cardiac magnetic resonance (CMR) imaging. We evaluated the efficacy of 2 novel contrast-free CMR methods, namely, diffusion-weighted imaging (DWI) and feature-tracking (FT) method, in detecting myocardial fibrosis. Methods. This cross-sectional study was conducted on 26 patients with HCM. Visual and quantitative comparisons were made between DWI and LGE images. Regional longitudinal, circumferential, and radial strains were compared between LGE-positive and LGE-negative segments. Moreover, global strains were compared between LGE-positive and LGE-negative patients as well as between patients with mild and marked LGE. Results. All 3 strains showed significant differences between LGE-positive and LGE-negative segments (P<0.001). The regional longitudinal and circumferential strain parameters showed significant associations with LGE (P<0.001), while regional circumferential strain was the only independent predictor of LGE in logistic regression models (OR: 1.140, 95% CI: 1.073 to 1.207, P<0.001). A comparison of global strains between patients with LGE percentages of below 15% and above 15% demonstrated that global circumferential strain was the only parameter to show impairment in the group with marked myocardial fibrosis, with borderline significance (P=0.09). A review of 212 segments demonstrated a qualitative visual agreement between DWI and LGE in 193 segments (91%). The mean apparent diffusion coefficient was comparable between LGE-positive and LGE-negative segments (P=0.51). Conclusions. FT-CMR, especially regional circumferential strain, can reliably show fibrosis-containing segments in HCM. Further, DWI can function as an efficient qualitative method for the estimation of the fibrosis extent in HCM.
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spelling doaj-art-601a3f1a3b2d4380bde60440ee97bb3b2025-02-03T01:21:26ZengWileyCardiology Research and Practice2090-80162090-05972021-01-01202110.1155/2021/99311369931136Efficacy of Novel Noncontrast Cardiac Magnetic Resonance Methods in Indicating Fibrosis in Hypertrophic CardiomyopathyMaedeh Sharifian0Nahid Rezaeian1Sanaz Asadian2Ali Mohammadzadeh3Ali Nahardani4Kianosh Kasani5Yaser Toloueitabar6Ali Mohammad Farahmand7Leila Hosseini8Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, IranRajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, IranRajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, IranRajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, IranRajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, IranRajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, IranRajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, IranTehran University of Medical Sciences, Tehran, IranRajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, IranObjective. In hypertrophic cardiomyopathy (HCM), myocardial fibrosis is routinely shown by late gadolinium enhancement (LGE) in cardiac magnetic resonance (CMR) imaging. We evaluated the efficacy of 2 novel contrast-free CMR methods, namely, diffusion-weighted imaging (DWI) and feature-tracking (FT) method, in detecting myocardial fibrosis. Methods. This cross-sectional study was conducted on 26 patients with HCM. Visual and quantitative comparisons were made between DWI and LGE images. Regional longitudinal, circumferential, and radial strains were compared between LGE-positive and LGE-negative segments. Moreover, global strains were compared between LGE-positive and LGE-negative patients as well as between patients with mild and marked LGE. Results. All 3 strains showed significant differences between LGE-positive and LGE-negative segments (P<0.001). The regional longitudinal and circumferential strain parameters showed significant associations with LGE (P<0.001), while regional circumferential strain was the only independent predictor of LGE in logistic regression models (OR: 1.140, 95% CI: 1.073 to 1.207, P<0.001). A comparison of global strains between patients with LGE percentages of below 15% and above 15% demonstrated that global circumferential strain was the only parameter to show impairment in the group with marked myocardial fibrosis, with borderline significance (P=0.09). A review of 212 segments demonstrated a qualitative visual agreement between DWI and LGE in 193 segments (91%). The mean apparent diffusion coefficient was comparable between LGE-positive and LGE-negative segments (P=0.51). Conclusions. FT-CMR, especially regional circumferential strain, can reliably show fibrosis-containing segments in HCM. Further, DWI can function as an efficient qualitative method for the estimation of the fibrosis extent in HCM.http://dx.doi.org/10.1155/2021/9931136
spellingShingle Maedeh Sharifian
Nahid Rezaeian
Sanaz Asadian
Ali Mohammadzadeh
Ali Nahardani
Kianosh Kasani
Yaser Toloueitabar
Ali Mohammad Farahmand
Leila Hosseini
Efficacy of Novel Noncontrast Cardiac Magnetic Resonance Methods in Indicating Fibrosis in Hypertrophic Cardiomyopathy
Cardiology Research and Practice
title Efficacy of Novel Noncontrast Cardiac Magnetic Resonance Methods in Indicating Fibrosis in Hypertrophic Cardiomyopathy
title_full Efficacy of Novel Noncontrast Cardiac Magnetic Resonance Methods in Indicating Fibrosis in Hypertrophic Cardiomyopathy
title_fullStr Efficacy of Novel Noncontrast Cardiac Magnetic Resonance Methods in Indicating Fibrosis in Hypertrophic Cardiomyopathy
title_full_unstemmed Efficacy of Novel Noncontrast Cardiac Magnetic Resonance Methods in Indicating Fibrosis in Hypertrophic Cardiomyopathy
title_short Efficacy of Novel Noncontrast Cardiac Magnetic Resonance Methods in Indicating Fibrosis in Hypertrophic Cardiomyopathy
title_sort efficacy of novel noncontrast cardiac magnetic resonance methods in indicating fibrosis in hypertrophic cardiomyopathy
url http://dx.doi.org/10.1155/2021/9931136
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