Global longitudinal strain assessment by computed tomography in severe aortic stenosis patients - Feasibility using feature tracking analysis

2019 ◽  
Vol 13 (2) ◽  
pp. 157-162 ◽  
Author(s):  
Miho Fukui ◽  
Jeffrey Xu ◽  
Islam Abdelkarim ◽  
Michael S. Sharbaugh ◽  
Floyd W. Thoma ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Aortic Stenosis ◽  
Feature Tracking ◽  
Longitudinal Strain ◽  
Severe Aortic Stenosis ◽  
Global Longitudinal Strain

scholarly journals CORRELATION OF AVERAGE 4D-CT BASED STRAIN ASSESSMENT (SQUEEZ) WITH GLOBAL LONGITUDINAL STRAIN BY ECHOCARDIOGRAPHY IN INDIVIDUALS WITH SEVERE AORTIC STENOSIS

2020 ◽  
Vol 75 (11) ◽  
pp. 1265
Author(s):  
Christopher Smitson ◽  
Anthony DeMaria ◽  
Sachiyo Igata ◽  
Gabrielle Colvert ◽  
Francisco Contijoch ◽  
...  
Keyword(s):  
Aortic Stenosis ◽  
Longitudinal Strain ◽  
Severe Aortic Stenosis ◽  
Global Longitudinal Strain ◽  
4D Ct

scholarly journals Late Gadolinium Enhancement Predicts Improvement in Global Longitudinal Strain after Aortic Valve Replacement in Aortic Stenosis

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Tsuyoshi Fujimiya ◽  
Masumi Iwai-Takano ◽  
Takashi Igarashi ◽  
Hiroharu Shinjo ◽  
Keiichi Ishida ◽  
...  
Keyword(s):  
Late Gadolinium Enhancement ◽  
Aortic Valve ◽  
Aortic Stenosis ◽  
Aortic Valve Replacement ◽  
Valve Replacement ◽  
Longitudinal Strain ◽  
Severe Aortic Stenosis ◽  
Global Longitudinal Strain ◽  
Lv Function ◽  
Gadolinium Enhancement

Abstract Myocardial fibrosis, as detected by late gadolinium enhancement (LGE) magnetic resonance imaging (MRI), is related to mortality after aortic valve replacement (AVR). This study aimed to determine whether LGEMRI predicts improvement in global longitudinal strain (GLS) after AVR in patients with severe aortic stenosis (AS). Twenty-nine patients with severe AS who were scheduled to undergo AVR were enrolled. Two-dimensional echocardiography and contrast-enhanced MRI were performed before AVR. GLS and LGEcore (g: > 5 SD of normal area), LGEgray (g: 2–5 SD), and LGEcore+gray (g) were measured. One year after AVR, GLS were examined by echocardiography to assess improvement in LV function. Preoperatively, GLS correlated with LGEcore (g) (r2 = 0.14, p < 0.05), LGEgray (g) (r2 = 0.32, p < 0.01) and LGEcore+gray (g) (r2 = 0.36, p < 0.01). LGEcore was significantly lower in patients with improved GLS after AVR (GLS1year ≥ −19.9%) compared to those with no improvement (1.34 g vs. 4.70 g, p < 0.01). LGE predicts improvement in LV systolic function after AVR.

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