Left ventricular global longitudinal strain calculated from manually traced endocardial border lengths utilizing the images for routine ejection fraction measurement by biplane method of disks

Okada, Kazunori; Kaga, Sanae; Araki, Minami; Tsujita, Kosuke; Yoshikawa, Ayaka; Hara, Mizuki; Sakamoto, Yoichi; Masauzi, Nobuo; Mikami, Taisei

Left ventricular global longitudinal strain calculated from manually traced endocardial border lengths utilizing the images for routine ejection fraction measurement by biplane method of disks

Okada, Kazunori; Kaga, Sanae; Araki, Minami et al.

Journal of medical ultrasonics, 2020, 47(1), 91-96

Permalink : https://hdl.handle.net/2115/80095

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アクセス権	open access
URI	https://hdl.handle.net/2115/80095
タイトル	Left ventricular global longitudinal strain calculated from manually traced endocardial border lengths utilizing the images for routine ejection fraction measurement by biplane method of disks
著者	Okada, Kazunori ; Kaga, Sanae ; Araki, Minami ; Tsujita, Kosuke ; Yoshikawa, Ayaka ; Hara, Mizuki ; Sakamoto, Yoichi ; Masauzi, Nobuo ; Mikami, Taisei
著者名 Okada, Kazunori
e-Rad_Researcher 60630978 著者名 Kaga, Sanae
著者名 Araki, Minami
著者名 Tsujita, Kosuke
著者名 Yoshikawa, Ayaka
著者名 Hara, Mizuki
著者名 Sakamoto, Yoichi
著者名 Masauzi, Nobuo
e-Rad_Researcher 90250456 著者名 Mikami, Taisei
言語	英語
キーワード	Global longitudinal strain
	Speckle-tracking echocardiography
	Biplane method of disks
	Ejection fraction
	Left ventricular systolic function
発行日	2020-01
出版者	Springer
収録物名	Journal of medical ultrasonics
巻(号)	47(1)
ページ	91-96
抄録	Purpose The purpose of this study was to test whether the fractional change in the endocardial border length between end-diastole and end-systole as manually traced in left ventricular ejection fraction (LVEF) measurement using the biplane method of disks (MOD) was consistent with the global longitudinal strain derived from speckle-tracking echocardiography. Methods For 105 patients who underwent echocardiography, two- and four-chamber images with manually traced endocardial lines for LVEF measurement by MOD were stored. LV endocardial lengths at end-diastole and at end-systole were measured on both images to calculate the fractional length changes, which were averaged (GLS(MOD)). Speckle-tracking analysis was performed to measure global longitudinal strains in the apical two- and four-chamber and long-axis images, and the three values were averaged (GLS(STE)) according to the ASE and EACVI guidelines. Results There was no significant difference between GLS(MOD) and GLS(STE). GLS(MOD) correlated well with GLS(STE) (r = 0.81, p < 0.001), and there was no fixed bias in the Bland-Altman analysis. The intraclass correlations for the intra- and inter-observer comparisons for GLS(STE) were excellent, and those for GLS(MOD) were adequate. Conclusion The fractional LV endocardial border length change, GLS(MOD), showed sufficient agreement with GLS(STE) to justify its use as a substitute for the STE-derived global longitudinal strain.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	This is a post-peer-review, pre-copyedit version of an article published in Journal of Medical Ultrasonics. The final authenticated version is available online at: http://dx.doi.org/10.1007/s10396-019-00976-w.
PISSN	1346-4523
EISSN	1613-2254
関連情報	PMID 31515647
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1007/s10396-019-00976-w