{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T19:52:20Z","timestamp":1760298740408},"reference-count":9,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2013,6,6]],"date-time":"2013-06-06T00:00:00Z","timestamp":1370476800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Echocardiography"],"published-print":{"date-parts":[[2013,10]]},"abstract":"<jats:p>A case was 53\u2010year\u2010old female with dilated\u2010phase hypertrophic cardiomyopathy. She was classified as New York Heart Association functional class III heart failure despite receiving optimal medical therapy. The electrocardiogram taken showed intraventricular conduction delay with a QRS width of 194\u00a0msec. The left ventricular (LV) end\u2010diastolic and systolic volumes, and ejection fraction (EF) were 101\u00a0mL, 68\u00a0mL, and 32%, respectively. The patient showed no significant mechanical LV dyssynchrony as evidenced by two\u2010dimensional (2D) speckle tracking radial strain, which is defined as the time difference between anterior\u2010septum and posterior wall, of 105\u00a0msec (&lt;130\u00a0msec). Three\u2010dimensional (3D) speckle tracking radial strain was performed for more detailed LV mechanical dyssynchrony analysis. An especially important finding for 3D speckle tracking radial strain analysis was that the average time\u2010to\u2010peak strain of 5 septum segments at 3 different LV levels (basal\u2010anterior\u2010septum, basal\u2010septum, mid\u2010anterior\u2010septum, mid\u2010septum, apical\u2010septum) was significantly shorter than that of 5 posterolateral segments at 3 different LV levels (basal\u2010posterior, basal\u2010lateral, mid\u2010posterior, mid\u2010lateral, apical\u2010lateral). This time difference between septum and posterolateral wall was 216\u00a0msec (204\u00a0msec vs. 420\u00a0msec), which was considered to indicate significant LV mechanical dyssynchrony (\u2265130\u00a0msec). 12\u00a0months after cardiac resynchronization therapy (CRT), EF had improved to 47%, while end\u2010systolic and diastolic volumes had decreased to 88\u00a0mL and 47\u00a0mL, respectively, so that the patient was classified as a responder. In conclusions, a newly developed 3D speckle tracking strain can provide a comprehensive evaluation of \u201ctrue\u201d LV mechanical dyssynchrony from pyramidal 3D data sets acquired in the same beat, thus yielding more accurate information than previously possible with the 2D speckle tracking system.<\/jats:p>","DOI":"10.1111\/echo.12280","type":"journal-article","created":{"date-parts":[[2013,6,6]],"date-time":"2013-06-06T15:09:36Z","timestamp":1370531376000},"source":"Crossref","is-referenced-by-count":10,"title":["Emerging Role of Three\u2010Dimensional Speckle Tracking Strain for Accurate Quantification of Left Ventricular Dyssynchrony"],"prefix":"10.1111","volume":"30","author":[{"given":"Hidekazu","family":"Tanaka","sequence":"first","affiliation":[{"name":"Division of Cardiovascular Medicine Department of Internal Medicine Kobe University Graduate School of Medicine Kobe Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kazuhiro","family":"Tatsumi","sequence":"additional","affiliation":[{"name":"Division of Cardiovascular Medicine Department of Internal Medicine Kobe University Graduate School of Medicine Kobe Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kensuke","family":"Matsumoto","sequence":"additional","affiliation":[{"name":"Division of Cardiovascular Medicine Department of Internal Medicine Kobe University Graduate School of Medicine Kobe Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroya","family":"Kawai","sequence":"additional","affiliation":[{"name":"Division of Cardiovascular Medicine Department of Internal Medicine Kobe University Graduate School of Medicine Kobe Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ken\u2010ichi","family":"Hirata","sequence":"additional","affiliation":[{"name":"Division of Cardiovascular Medicine Department of Internal Medicine Kobe University Graduate School of Medicine Kobe Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2013,6,6]]},"reference":[{"key":"e_1_2_5_2_1","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCULATIONAHA.107.743120"},{"key":"e_1_2_5_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jacc.2008.02.040"},{"key":"e_1_2_5_4_1","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCULATIONAHA.105.571455"},{"key":"e_1_2_5_5_1","doi-asserted-by":"publisher","DOI":"10.1093\/eurheartj\/ehq213"},{"key":"e_1_2_5_6_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1540-8175.2010.01276.x"},{"key":"e_1_2_5_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1540-8175.2012.01773.x"},{"key":"e_1_2_5_8_1","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCULATIONAHA.110.956011"},{"key":"e_1_2_5_9_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF02938362"},{"key":"e_1_2_5_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jacc.2007.07.011"}],"container-title":["Echocardiography"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2Fecho.12280","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/echo.12280","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,4]],"date-time":"2023-10-04T01:18:08Z","timestamp":1696382288000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/echo.12280"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2013,6,6]]},"references-count":9,"journal-issue":{"issue":"9","published-print":{"date-parts":[[2013,10]]}},"alternative-id":["10.1111\/echo.12280"],"URL":"https:\/\/doi.org\/10.1111\/echo.12280","archive":["Portico"],"relation":{},"ISSN":["0742-2822","1540-8175"],"issn-type":[{"value":"0742-2822","type":"print"},{"value":"1540-8175","type":"electronic"}],"subject":[],"published":{"date-parts":[[2013,6,6]]}}}