Volume 48, Issue 2 pp. 404-414
Original Research

Improved segmental myocardial strain reproducibility using deformable registration algorithms compared with feature tracking cardiac MRI and speckle tracking echocardiography

Jie Wang BMSci

Jie Wang BMSci

Department of Cadiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China

The first two authors contributed equally to this work.

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Weihao Li BMSci

Weihao Li BMSci

Department of Cadiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China

The first two authors contributed equally to this work.

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Jiayu Sun MD

Jiayu Sun MD

Department of Radiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China

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Hong Liu BMSci

Hong Liu BMSci

Department of Cadiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China

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Yu Kang BMSci

Yu Kang BMSci

Department of Cadiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China

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Dan Yang BMSci

Dan Yang BMSci

Department of Cadiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China

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Liuyu Yu

Liuyu Yu

Department of Cadiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China

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Andreas Greiser PhD

Andreas Greiser PhD

Siemens Healthcare, Erlangen, Germany

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Xiaoyue Zhou PhD

Xiaoyue Zhou PhD

Siemens Healthcare, Shanghai, China

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Yuchi Han MD, MMSc

Yuchi Han MD, MMSc

Department of Medicine (Cardiovascular Division), University of Pennsylvania, Philadelphia, Pennsylvania, USA

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Yucheng Chen MD

Corresponding Author

Yucheng Chen MD

Department of Cadiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China

Address reprint requests to: Y.C., Department of Cardiology, West China Hospital, Sichuan University, 37 Guoxue Xiang, Chengdu, Sichuan, 610041, China. E-mail: [email protected]Search for more papers by this author
First published: 28 December 2017
Citations: 19

Abstract

Background

Segmental myocardial strain using feature tracking (FT) cardiac MRI is not acceptable due to poor reproducibility.

Purpose

To assess the reproducibility of left ventricle (LV) segmental myocardial strain measured by deformation registration algorithm (DRA).

Study Type

Prospective clinical trial.

Subjects

Sixteen healthy volunteers and 28 hypertrophic cardiomyopathy (HCM) patients.

Field Strength/Sequence

Retrospective ECG gating cardiac MRI imaging was performed at 3.0T with a steady-state free precession (SSFP) sequence.

Assessment

LV global and segmental myocardial strains were analyzed by DRA, FT, and speckle tracking echocardiography (STE) by two experienced observers and the reproducibility of global and segmental strains were compared.

Statistical Tests

Reproducibility was tested by coefficient of variation (COV) and intraclass correlation coefficient (ICC). Receiver operator curves as well as comparison of areas under the curve (AUC) were analyzed.

Results

DRA showed the best observer agreement on segmental strain evaluated by ICC, LS (longitudinal strain): intraobserver variability range (0.98,1.00), interobserver variability range (0.83,0.92), CS (circumferential strain): intraobserver variability range (0.90,0.99), interobserver variability range (0.80,0.97), RS (radial strain): intraobserver variability range (0.84,0.99), interobserver variability range (0.85,0.99). Segmental LS, CS, and RS agreements evaluated by COV for FT and STE were poor. LV global myocardial strain of HCM was significantly lower than controls for all applied techniques, but global CS by DRA had better accuracy compared to FT or STE for distinguishing HCM from healthy subjects: AUC 0.880 (DRA) vs. 0.577 (FT) or 0.736 (STE), P < 0.05.

Data Conclusions

DRA is a reliable and robust analysis tool for segmental myocardial strain. Global CS by DRA allows discrimination between HCM and normal controls with better accuracy compared with FT and STE.

Level of Evidence: 1

Technical Efficacy: Stage 2

J. MAGN. RESON. IMAGING 2018;48:404–414.

Conflict of Interest

A.G. and X.-Y.Z. are employees of Siemens. The authors declare that they have no competing interests regarding this study.

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