Clinical Utility of Strain Imaging in Assessment of Myocardial Fibrosis

Figures

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  Figure 1. LV images of 3D−STE strain in a HF patient who underwent the heart transplantation. (A) Three−dimensional LV reconstruction image. (B) LV endocardial border outlining and tracking. (C) LV global strain. Different colored lines represent the strain curves of different myocardial segments of LV. (D) Example of LV myocardial samples with Masson’s staining obtained from the explanted heart immediately after transplantation (original magnification ×200). LV: left ventricular; MF: myocardial fibrosis; 3D−STE: three−dimensional speckle tracking echocardiography; HF: heart failure.

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  Figure 2. RV images of 3D−STE strain in a HF patient who underwent the heart transplantation. (A) Three−dimensional RV reconstruction image. (B) RV endocardial border outlining and tracking. (C) longitudinal strain of RV septum and free wall. (D) Example of RV myocardial samples stained with Masson’s staining acquired from the explanted heart (original magnification ×200). RV: right ventricular; other abbreviations as in Figure 1.

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  Figure 3. CMR−FT strain images of left ventricle in a DCM patient who underwent the heart transplantation. (A) LV endocardial border outlining and tracking. (B) Bulls−eye plot of LV segmental longitudinal strain. (C) LV global longitudinal strain (yellow curve) and global circumferential strain (pink curve). (D) Example of LV myocardial samples stained with Masson’s staining (original magnification ×200). CMR−FT: cardiac magnetic resonance feature tracking; DCM: dilated cardiomyopathy; other abbreviations as in Figure 1 and Figure 2.

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  Figure 4. CMR−FT strain images of right ventricle in a DCM patient who underwent the heart transplantation. (A) RV endocardial border outlining and tracking. (B) Time to peak RV longitudinal strain and phase. (C) RV longitudinal strain. (D) Example of RV myocardial samples stained with Masson’s staining (original magnification ×200). The abbreviations as in Figure 1, Figure 2 and Figure 3.