Volume 36, Issue 1 pp. 110-118
ORIGINAL INVESTIGATION

Value of tissue-tracking tricuspid annular plane by speckle-tracking echocardiography for the assessment of right ventricular systolic dysfunction

Naoki Maniwa MD

Naoki Maniwa MD

Department of Cardiovascular Medicine, Wakayama Medical University, Wakayama, Japan

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Takeshi Hozumi MD

Corresponding Author

Takeshi Hozumi MD

Department of Cardiovascular Medicine, Wakayama Medical University, Wakayama, Japan

Correspondence

Takeshi Hozumi, Department of Cardiovascular Medicine, Wakayama Medical University, Wakayama city, Japan.

Email: [email protected]

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Kazushi Takemoto PhD

Kazushi Takemoto PhD

Department of Cardiovascular Medicine, Wakayama Medical University, Wakayama, Japan

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Teruaki Wada MD

Teruaki Wada MD

Department of Cardiovascular Medicine, Wakayama Medical University, Wakayama, Japan

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Manabu Kashiwagi MD

Manabu Kashiwagi MD

Department of Cardiovascular Medicine, Wakayama Medical University, Wakayama, Japan

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Kunihiro Shimamura MD

Kunihiro Shimamura MD

Department of Cardiovascular Medicine, Wakayama Medical University, Wakayama, Japan

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Yasutsugu Shiono MD

Yasutsugu Shiono MD

Department of Cardiovascular Medicine, Wakayama Medical University, Wakayama, Japan

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Akio Kuroi MD

Akio Kuroi MD

Department of Cardiovascular Medicine, Wakayama Medical University, Wakayama, Japan

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Yoshiki Matsuo MD

Yoshiki Matsuo MD

Department of Cardiovascular Medicine, Wakayama Medical University, Wakayama, Japan

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Yasushi Ino MD

Yasushi Ino MD

Department of Cardiovascular Medicine, Wakayama Medical University, Wakayama, Japan

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Hironori Kitabata MD

Hironori Kitabata MD

Department of Cardiovascular Medicine, Wakayama Medical University, Wakayama, Japan

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Takashi Kubo MD

Takashi Kubo MD

Department of Cardiovascular Medicine, Wakayama Medical University, Wakayama, Japan

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Atsushi Tanaka MD

Atsushi Tanaka MD

Department of Cardiovascular Medicine, Wakayama Medical University, Wakayama, Japan

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Takashi Akasaka MD

Takashi Akasaka MD

Department of Cardiovascular Medicine, Wakayama Medical University, Wakayama, Japan

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First published: 05 December 2018
Citations: 8

Abstract

Background

Assessment of right ventricular (RV) function remains challenging because of its complex geometry. Application of speckle-tracking echocardiography (STE) to the tricuspid annulus provides rapid and automated assessment of the midpoint of the tricuspid annular plane displacement (TAD). The aim of this study was to investigate the value of tissue-tracking TAD for the assessment of RV systolic dysfunction.

Methods

We retrospectively studied 61 patients in whom RV ejection fraction (EF) measured by 3-dimensional echocardiography was performed. STE-derived displacement of the midpoint between the septal and lateral tricuspid annulus and its percentage of RV length at end-diastole (MTAD) were automatically assessed. We performed comparative analyses between the RVEF ≥45% group and the RVEF <45% group in each parameter for the assessment of RV systolic function.

Results

MTAD was successfully assessed in 56 (91.2%). According to receiver operating characteristics analysis, RVEF <45% was best detected by MTAD <14.7% with area under curve (AUC) 0.97, sensitivity 93%, specificity 95%, followed by RV free wall longitudinal strain (AUC 0.86), RV fractional area change (AUC 0.84), tricuspid annular plane systolic excursion (AUC 0.79), and systolic peak velocity of tricuspid annulus (AUC 0.70), although there was no significant difference between MTAD and RV free wall strain (P = 0.14).

Conclusion

The present study showed that MTAD was simple index and useful for the assessment of RV systolic dysfunction.

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