Myocardial layer-specific analysis of ischemic memory using speckle tracking echocardiography

Sakurai, Daisuke; Asanuma, Toshihiko; Masuda, Kasumi; Hioki, Ayana; Nakatani, Satoshi

doi:https://doi.org/10.1007/s10554-014-0388-x

Myocardial layer-specific analysis of ischemic memory using speckle tracking echocardiography

Sakurai, Daisuke; Asanuma, Toshihiko; Masuda, Kasumi et al.

International Journal of Cardiovascular Imaging, 2014, 30(4), 739-748

アクセス数:585件（2026-07-17 08:27 集計）

固定URL: https://hdl.handle.net/11094/86343

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タイトル	Myocardial layer-specific analysis of ischemic memory using speckle tracking echocardiography
著者	著者名 Sakurai, Daisuke
	NRID 1000080379271 1000080379271 著者名 Asanuma, Toshihiko
	NRID 1000020533293 1000020533293 著者名 Masuda, Kasumi
	著者名 Hioki, Ayana
	NRID 1000080393221 1000080393221 著者名 Nakatani, Satoshi
キーワード等	Echocardiography
	Ischemia
	Myocardial strain
	Post-systolic shortening
内容	This is a post-peer-review, pre-copyedit version of an article published in International Journal of Cardiovascular Imaging. The final authenticated version is available online at: https://doi.org/10.1007/s10554-014-0388-x.
抄録	The assessment of post-systolic shortening (PSS) by speckle tracking echocardiography allows myocardial ischemic memory imaging. Because the endocardial layer is more vulnerable to ischemia, the assessment of this layer might be useful for detecting ischemic memory. Serial echocardiographic data were acquired from nine dogs with 2 min of coronary occlusion followed by reperfusion. Regional deformation parameters were measured in the risk and normal areas. Using speckle tracking echocardiography, circumferential strain was analyzed in the endocardial, mid-wall, and epicardial layers; and radial strain was analyzed in the inner half, outer half and entire (transmural) layers. In the risk area, peak systolic and end-systolic strain in the circumferential and radial directions significantly decreased during occlusion, but recovered to the baseline levels immediately after reperfusion in all layers. However, circumferential post-systolic strain index (PSI), a parameter of PSS, significantly increased during occlusion, and the significant increases persisted until 20 min after reperfusion in the endocardial and mid-wall layers. Radial PSI tended to increase after reperfusion in the inner half and entire layers but these increases were not significant compared with baseline. In the normal area, systolic strains and PSI in the radial and circumferential directions hardly changed before and after occlusion/reperfusion in all layers. In layer-specific analysis with speckle tracking echocardiography, circumferential PSS in the endocardial and mid-wall layers may be useful for detecting ischemic memory. © 2014 Springer Science+Business Media.
出版者	Springer
収録物名	International Journal of Cardiovascular Imaging
巻(号)	30(4)
ページ	739-748
刊行年月	2014-02-15
言語	英語
ハンドルURL	https://hdl.handle.net/11094/86343
PISSN	15695794
eISSN	15730743
NCID	AA11582413
関連情報 (isVersionOf)	DOI (出版社版) https://doi.org/10.1007/s10554-014-0388-x
関連情報 (isIdenticalTo)	PMID 24532055
アクセス権	open access
出版タイプ	Accepted Manuscript
カテゴリ	学術雑誌論文 Journal Article

資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
DCMI資源タイプ	text
DCTERMS.bibliographicCitation	International Journal of Cardiovascular Imaging. 2014, 30(4), p. 739-748
DC.title	Myocardial layer-specific analysis of ischemic memory using speckle tracking echocardiography
DC.creator	Sakurai, Daisuke
	Asanuma, Toshihiko
	Masuda, Kasumi
	Hioki, Ayana
	Nakatani, Satoshi
DC.publisher	Springer
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2014-02-15
DC.identifier	https://doi.org/10.1007/s10554-014-0388-x
DC.subject	Echocardiography
	Ischemia
	Myocardial strain
	Post-systolic shortening
DC.description	This is a post-peer-review, pre-copyedit version of an article published in International Journal of Cardiovascular Imaging. The final authenticated version is available online at: https://doi.org/10.1007/s10554-014-0388-x.
DCTERMS.abstract	The assessment of post-systolic shortening (PSS) by speckle tracking echocardiography allows myocardial ischemic memory imaging. Because the endocardial layer is more vulnerable to ischemia, the assessment of this layer might be useful for detecting ischemic memory. Serial echocardiographic data were acquired from nine dogs with 2 min of coronary occlusion followed by reperfusion. Regional deformation parameters were measured in the risk and normal areas. Using speckle tracking echocardiography, circumferential strain was analyzed in the endocardial, mid-wall, and epicardial layers; and radial strain was analyzed in the inner half, outer half and entire (transmural) layers. In the risk area, peak systolic and end-systolic strain in the circumferential and radial directions significantly decreased during occlusion, but recovered to the baseline levels immediately after reperfusion in all layers. However, circumferential post-systolic strain index (PSI), a parameter of PSS, significantly increased during occlusion, and the significant increases persisted until 20 min after reperfusion in the endocardial and mid-wall layers. Radial PSI tended to increase after reperfusion in the inner half and entire layers but these increases were not significant compared with baseline. In the normal area, systolic strains and PSI in the radial and circumferential directions hardly changed before and after occlusion/reperfusion in all layers. In layer-specific analysis with speckle tracking echocardiography, circumferential PSS in the endocardial and mid-wall layers may be useful for detecting ischemic memory. © 2014 Springer Science+Business Media.
DC.format	86343
citation_title	Myocardial layer-specific analysis of ischemic memory using speckle tracking echocardiography
citation_author	Sakurai, Daisuke
	Asanuma, Toshihiko
	Masuda, Kasumi
	Hioki, Ayana
	Nakatani, Satoshi
citation_publisher	Springer
citation_language	英語
citation_date	2014-02-15
citation_journal_title	International Journal of Cardiovascular Imaging
citation_volume	30
citation_issue	4
citation_firstpage	739
citation_lastpage	748
citation_doi	https://doi.org/10.1007/s10554-014-0388-x
citation_pmid	24532055
citation_public_url	https://hdl.handle.net/11094/86343

Myocardial layer-specific analysis of ischemic memory using speckle tracking echocardiography

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