Harmonic phase versus sine-wave modulation for measuring regional heart function from tagged MRI images

2016 IEEE 13th International Symposium on Biomedical Imaging (ISBI) Pub Date : 2016-06-16 DOI:10.1109/ISBI.2016.7493303

El-Sayed H. Ibrahim, S. Swanson, J. Stojanovska, C. Duvernoy, R. Pop-Busui

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引用次数: 2

Abstract

Magnetic resonance imaging (MRI) tagging is a valuable technique for evaluating regional heart function. Currently, there are a number of different techniques for analyzing the tagged images. The purpose of this study is to compare the harmonic-phase (HARP) and sine-wave modeling (SinMod) tagging analysis techniques for evaluating myocardial strain and torsion in healthy controls and type-1 diabetes patients. All SinMod measurements were significantly larger than those by HARP (P<;0.001). Nevertheless, there existed consistency in the measurements by each technique, as seen by the good correlation between the HARP and SinMod measurements in both normals (R≥0.52) and patients (R≥0.48), except for apical strain (patients and controls) and mid-ventricular strain in patients. The inter-observer agreement was better in SinMod than in HARP for both torsion and strain (except at apex). In conclusion, under current operating conditions, the results from the two techniques cannot be used interchangeably.

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谐波相位与正弦波调制从标记的MRI图像测量区域心脏功能

磁共振成像(MRI)标记是评价局部心功能的一种有价值的技术。目前，有许多不同的技术来分析标记图像。本研究的目的是比较谐波相位(HARP)和正弦波模型(SinMod)标记分析技术对健康对照和1型糖尿病患者心肌应变和扭转的评价。所有SinMod测量值均显著大于HARP测量值(P< 0.001)。尽管如此，每种技术的测量结果都存在一致性，正常人(R≥0.52)和患者(R≥0.48)的HARP和SinMod测量结果具有良好的相关性，除了患者(患者和对照组)的根尖应变和患者的中心室应变。SinMod在扭转和应变方面的观察者间一致性优于HARP(顶点除外)。总之，在目前的操作条件下，这两种技术的结果不能互换使用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2016 IEEE 13th International Symposium on Biomedical Imaging (ISBI)

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