New classification of heart failure severity using mitral annulus displacement measured by tissue-tracking method with Doppler-tissue images

Koji Ito, Mitsuru Noma, Masahiro Mohri, Kohtaro Abe, Umpei Yamamoto, Kan Kikuchi, Kenji Miyata, Hideki Origuchi, Hideo Yamamoto, Tsukasa Tajimi, Yutaka Kikuchi

Research output: Contribution to journalArticle

Abstract

Objectives. The purpose of this study was to determine whether the assessment of mitral annulus displacement (MAD) using Doppler-tissue image (DTI) could provide a useful marker of heart failure severity. Methods. In seventy-five subjects with heart diseases, we measured MAD by tissue-tracking method with DTI. MAD was evaluated in both septal and lateral corners of the mitral annulus in the apical 4-chamber view, and the degree of MAD in postsystolic phase was estimated as a ratio of displacement at aortic valve closure and peak point (P/A ratio). We divided subjects into three groups (group A: subjects with preserved MAD, group B: subjects with reduced MAD without increasing P/A ratio, group C: subjects with reduced MAD with increasing P/A ratio) and compared NYHA functional class and left ventricular ejection fraction (LVEF). Results. NYHA functional class and LVEF were significantly different among the three groups (NYHA functional class; group A: 1.2 ± 0.4, group B: 2.3 ± 0.9, group C: 3.1 ± 0.8, LVEF; group A: 58 ± 12 %, group B: 42 ± 15 %, group C: 25 ± 8 %). These results indicated that MAD which represents mainly LV longitudinal function is decreased in the first place, and then, post-systolic displacement is exaggerated according to the severity of heart failure. Conclusions. The classification of the degree and timing of peak MAD (P/ A ratio) is well correlated with NYHA functional class and LVEF and becomes one of the useful indexes of heart failure severity.

Original languageEnglish
Pages (from-to)105-111
Number of pages7
JournalJournal of Echocardiography
Volume5
Issue number4
DOIs
Publication statusPublished - Dec 1 2007
Externally publishedYes

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Stroke Volume
Heart Failure
Aortic Valve
Heart Diseases

All Science Journal Classification (ASJC) codes

  • Radiology Nuclear Medicine and imaging

Cite this

New classification of heart failure severity using mitral annulus displacement measured by tissue-tracking method with Doppler-tissue images. / Ito, Koji; Noma, Mitsuru; Mohri, Masahiro; Abe, Kohtaro; Yamamoto, Umpei; Kikuchi, Kan; Miyata, Kenji; Origuchi, Hideki; Yamamoto, Hideo; Tajimi, Tsukasa; Kikuchi, Yutaka.

In: Journal of Echocardiography, Vol. 5, No. 4, 01.12.2007, p. 105-111.

Research output: Contribution to journalArticle

Ito, K, Noma, M, Mohri, M, Abe, K, Yamamoto, U, Kikuchi, K, Miyata, K, Origuchi, H, Yamamoto, H, Tajimi, T & Kikuchi, Y 2007, 'New classification of heart failure severity using mitral annulus displacement measured by tissue-tracking method with Doppler-tissue images', Journal of Echocardiography, vol. 5, no. 4, pp. 105-111. https://doi.org/10.2303/jecho.5.105
Ito, Koji ; Noma, Mitsuru ; Mohri, Masahiro ; Abe, Kohtaro ; Yamamoto, Umpei ; Kikuchi, Kan ; Miyata, Kenji ; Origuchi, Hideki ; Yamamoto, Hideo ; Tajimi, Tsukasa ; Kikuchi, Yutaka. / New classification of heart failure severity using mitral annulus displacement measured by tissue-tracking method with Doppler-tissue images. In: Journal of Echocardiography. 2007 ; Vol. 5, No. 4. pp. 105-111.
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abstract = "Objectives. The purpose of this study was to determine whether the assessment of mitral annulus displacement (MAD) using Doppler-tissue image (DTI) could provide a useful marker of heart failure severity. Methods. In seventy-five subjects with heart diseases, we measured MAD by tissue-tracking method with DTI. MAD was evaluated in both septal and lateral corners of the mitral annulus in the apical 4-chamber view, and the degree of MAD in postsystolic phase was estimated as a ratio of displacement at aortic valve closure and peak point (P/A ratio). We divided subjects into three groups (group A: subjects with preserved MAD, group B: subjects with reduced MAD without increasing P/A ratio, group C: subjects with reduced MAD with increasing P/A ratio) and compared NYHA functional class and left ventricular ejection fraction (LVEF). Results. NYHA functional class and LVEF were significantly different among the three groups (NYHA functional class; group A: 1.2 ± 0.4, group B: 2.3 ± 0.9, group C: 3.1 ± 0.8, LVEF; group A: 58 ± 12 {\%}, group B: 42 ± 15 {\%}, group C: 25 ± 8 {\%}). These results indicated that MAD which represents mainly LV longitudinal function is decreased in the first place, and then, post-systolic displacement is exaggerated according to the severity of heart failure. Conclusions. The classification of the degree and timing of peak MAD (P/ A ratio) is well correlated with NYHA functional class and LVEF and becomes one of the useful indexes of heart failure severity.",
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AU - Ito, Koji

AU - Noma, Mitsuru

AU - Mohri, Masahiro

AU - Abe, Kohtaro

AU - Yamamoto, Umpei

AU - Kikuchi, Kan

AU - Miyata, Kenji

AU - Origuchi, Hideki

AU - Yamamoto, Hideo

AU - Tajimi, Tsukasa

AU - Kikuchi, Yutaka

PY - 2007/12/1

Y1 - 2007/12/1

N2 - Objectives. The purpose of this study was to determine whether the assessment of mitral annulus displacement (MAD) using Doppler-tissue image (DTI) could provide a useful marker of heart failure severity. Methods. In seventy-five subjects with heart diseases, we measured MAD by tissue-tracking method with DTI. MAD was evaluated in both septal and lateral corners of the mitral annulus in the apical 4-chamber view, and the degree of MAD in postsystolic phase was estimated as a ratio of displacement at aortic valve closure and peak point (P/A ratio). We divided subjects into three groups (group A: subjects with preserved MAD, group B: subjects with reduced MAD without increasing P/A ratio, group C: subjects with reduced MAD with increasing P/A ratio) and compared NYHA functional class and left ventricular ejection fraction (LVEF). Results. NYHA functional class and LVEF were significantly different among the three groups (NYHA functional class; group A: 1.2 ± 0.4, group B: 2.3 ± 0.9, group C: 3.1 ± 0.8, LVEF; group A: 58 ± 12 %, group B: 42 ± 15 %, group C: 25 ± 8 %). These results indicated that MAD which represents mainly LV longitudinal function is decreased in the first place, and then, post-systolic displacement is exaggerated according to the severity of heart failure. Conclusions. The classification of the degree and timing of peak MAD (P/ A ratio) is well correlated with NYHA functional class and LVEF and becomes one of the useful indexes of heart failure severity.

AB - Objectives. The purpose of this study was to determine whether the assessment of mitral annulus displacement (MAD) using Doppler-tissue image (DTI) could provide a useful marker of heart failure severity. Methods. In seventy-five subjects with heart diseases, we measured MAD by tissue-tracking method with DTI. MAD was evaluated in both septal and lateral corners of the mitral annulus in the apical 4-chamber view, and the degree of MAD in postsystolic phase was estimated as a ratio of displacement at aortic valve closure and peak point (P/A ratio). We divided subjects into three groups (group A: subjects with preserved MAD, group B: subjects with reduced MAD without increasing P/A ratio, group C: subjects with reduced MAD with increasing P/A ratio) and compared NYHA functional class and left ventricular ejection fraction (LVEF). Results. NYHA functional class and LVEF were significantly different among the three groups (NYHA functional class; group A: 1.2 ± 0.4, group B: 2.3 ± 0.9, group C: 3.1 ± 0.8, LVEF; group A: 58 ± 12 %, group B: 42 ± 15 %, group C: 25 ± 8 %). These results indicated that MAD which represents mainly LV longitudinal function is decreased in the first place, and then, post-systolic displacement is exaggerated according to the severity of heart failure. Conclusions. The classification of the degree and timing of peak MAD (P/ A ratio) is well correlated with NYHA functional class and LVEF and becomes one of the useful indexes of heart failure severity.

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