{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1390848250135697408.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.11272/jss.316"}},{"identifier":{"@type":"NAID","@value":"130007887358"}},{"identifier":{"@type":"URI","@value":"https://search.jamas.or.jp/link/ui/2020362455"}}],"dc:title":[{"@language":"en","@value":"Comparison of Global Longitudinal Strain Measurement Among Recent Version Echocardiographic Machines and Vendor Independent Strain Analysis Software"},{"@language":"ja","@value":"最新の心エコー図診断装置および装置非依存性ストレイン解析ソフトウェアを用いたGlobal Longitudinal Strain計測の装置間差に関する検討"}],"dc:language":"ja","description":[{"type":"abstract","notation":[{"@language":"en","@value":"<p><b>Purpose</b>: Global longitudinal strain (GLS) assessed using the two-dimensional (2D) speckle tracking method is considered to be an accurate and reproducible measurement method for assessing the LV contractility. However, the measurement variability across different ultrasonography machines has been discussed. This study aimed to determine whether the measurement variability among newer echocardiographic machines is lower than that reported in previous studies.</p><p><b>Subjects and Methods</b>: We enrolled 34 healthy volunteers. Apical images were acquired using three types of latest ultrasonography machines at the Tokushima University Hospital. The GLS values were assessed and compared using the latest version of the vendor-specific software and one vendor-independent software packages (EchoInsight ver. 2.2.6.2230, Epsilon).</p><p><b>Results and Discussion</b>: The upgraded vendor-specific software showed good correlation in GLS [GE vs. Philips (r＝0.678, p＜0.001, Bias 1.1%, 2SD ±2.9%), GE vs. Canon (r＝0.690, p＜0.001, Bias 0.4%, 2SD ±2.5%), Philips vs. Canon (r＝0.551, p＜0.001, Bias 1.5%, 2SD ±3.2%)]. The GLS measured using vendor-independent software provided greater degree of correlation than that with each software alone.</p><p><b>Conclusion</b>: The measurement variability of GLS between devices was superior than that reported previously. Moreover, the GLS measured using the images acquired using each device with EchoInsight showed good inter-device correlation.</p>"},{"@language":"ja","@value":"<p><b>目的</b>：左室長軸方向ストレイン（GLS）は，正確で再現性の良い左室機能評価の指標とされているが，超音波診断装置間でのばらつきは未だ議論がある．本研究では，最新の超音波診断装置を用いることにより，GLSの装置間差が軽減しているという仮説を検証することを目的とした．</p><p><b>対象と方法</b>: 34名の健康なボランティアの測定を行った．心尖部の画像は，徳島大学病院超音波センターに導入された最新の超音波装置を使用して取得した．GLSの測定はそれぞれの装置に搭載されているソフトウェアおよび，装置非依存性ストレイン解析ソフトウェアであるEchoInsightを用いて測定し，比較した．</p><p><b>結果と考察</b>：各装置間でGLSに良好な相関が得られた（GE vs. Philips［r＝0.678, p＜0.001, Bias 1.1%, 2SD ±2.9%］，GE vs. Canon［r＝0.690, p＜0.001, Bias 0.4%, 2SD ±2.5%］，Philips vs. Canon［r＝0.551, p＜0.001, Bias 1.5%, 2SD ±3.2%］）．EchoInsightを用いた場合，各装置で計測したGLSよりも相関関係は良好であった．</p><p><b>結語：</b>GLSの装置間差は過去の報告と比較して改善していた．さらにEchoInsightを用いて計測したGLSは，良好な相関関係を認めた．</p>"}],"abstractLicenseFlag":"disallow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1410848250135697411","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000409879651"}],"foaf:name":[{"@language":"en","@value":"Nishio Susumu"},{"@language":"ja","@value":"西尾 進"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Ultrasound Examination Center, Tokushima University 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