{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,19]],"date-time":"2026-10-19T11:24:33Z","timestamp":1792409073251,"version":"4.4.0"},"reference-count":18,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2019,3,13]],"date-time":"2019-03-13T00:00:00Z","timestamp":1552435200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Echocardiography"],"published-print":{"date-parts":[[2019,4]]},"abstract":"\n Background<\/jats:title>\n \n The differentiation between dilated cardiomyopathy (\n DCM<\/jats:styled-content>\n ) and systolic dysfunction caused by coronary artery disease (\n CAD<\/jats:styled-content>\n ) based on clinical and echocardiographic presentation can be difficult in some cases.\n <\/jats:p>\n <\/jats:sec>\n \n Aim<\/jats:title>\n \n Our study aimed to define differences in myocardial function between patients with ischemic and nonischemic etiology of reduced left ventricular ejection fraction using 2D speckle tracking echocardiography (\n STE<\/jats:styled-content>\n ).\n <\/jats:p>\n <\/jats:sec>\n \n Material and methods<\/jats:title>\n \n We retrospectively analyzed 90 patients (mean age 65\u00a0\u00b1\u00a011\u00a0years, 70% male) with de novo diagnosed reduced left ventricular ejection fraction (\u226445% as determined by the transthoracic echocardiography), who were referred for coronary angiography to determine the presence of significant\n CAD<\/jats:styled-content>\n . On the basis of coronary angiography results, patients were divided into two subgroups as follows: 45 subjects with significant\n CAD<\/jats:styled-content>\n (group A) and 45 subjects without\n CAD<\/jats:styled-content>\n (group B). Acquired transthoracic echocardiographic images were assessed off\u2010line using 2\n DSTE<\/jats:styled-content>\n . In each patient, we calculated arithmetic mean, median value, and standard deviation of regional longitudinal strain and strain rate of 18 left ventricular segments.\n <\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n \n Standard deviation of the regional peak early diastolic strain rate was significantly higher in group A than in group B (\n P<\/jats:italic>\n \u00a0=\u00a00.01). The cutoff value with the highest diagnostic value was >0.37\/s\u2014its sensitivity and specificity for the diagnosis of\n CAD<\/jats:styled-content>\n were 73% and 53%, respectively. The remaining parameters did not differ significantly between the study groups.\n <\/jats:p>\n <\/jats:sec>\n \n Conclusions<\/jats:title>\n \n Patients with systolic dysfunction resulting from\n CAD<\/jats:styled-content>\n have significantly more heterogeneous regional longitudinal early diastolic strain rate assessed by 2\n DSTE<\/jats:styled-content>\n than patients with\n DCM<\/jats:styled-content>\n .\n <\/jats:p>\n <\/jats:sec>","DOI":"10.1111\/echo.14312","type":"journal-article","created":{"date-parts":[[2019,3,13]],"date-time":"2019-03-13T23:43:18Z","timestamp":1552520598000},"page":"702-706","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Diagnostic utility of two\u2010dimensional speckle tracking echocardiography to identify ischemic etiology of left ventricular systolic dysfunction"],"prefix":"10.1111","volume":"36","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0578-6367","authenticated-orcid":false,"given":"Ewelina","family":"Kowalczyk","sequence":"first","affiliation":[{"name":"Department of Cardiology Medical University of Lodz Lodz Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jaros\u0142aw D.","family":"Kasprzak","sequence":"additional","affiliation":[{"name":"Department of Cardiology Medical University of Lodz Lodz Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paulina","family":"Wejner\u2010Mik","sequence":"additional","affiliation":[{"name":"Department of Cardiology Medical University of Lodz Lodz Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Katarzyna","family":"Wdowiak\u2010Okrojek","sequence":"additional","affiliation":[{"name":"Department of Cardiology Medical University of Lodz Lodz Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Piotr","family":"Lipiec","sequence":"additional","affiliation":[{"name":"Department of Cardiology Medical University of Lodz Lodz Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2019,3,13]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1093\/eurheartj\/ehl193"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1053\/euhj.2000.2289"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.97.3.282"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1093\/ehjci\/jeu020"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.1002\/ejhf.154"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/ejhf.592"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1093\/ejechocard\/jep041"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCIMAGING.113.000989"},{"key":"e_1_2_6_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.echo.2011.03.007"},{"key":"e_1_2_6_11_1","first-page":"9412","article-title":"Diagnostic accuracy of myocardial deformation indices for detecting high risk coronary artery disease in patients without regional wall motion abnormality","volume":"8","author":"Rostamzadeh A","year":"2015","journal-title":"Int J Clin Exp Med"},{"key":"e_1_2_6_12_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10554-016-0959-0"},{"key":"e_1_2_6_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.echo.2016.03.002"},{"key":"e_1_2_6_14_1","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCHEARTFAILURE.114.002169"},{"key":"e_1_2_6_15_1","doi-asserted-by":"publisher","DOI":"10.1093\/eurheartj\/ehu404"},{"key":"e_1_2_6_16_1","doi-asserted-by":"publisher","DOI":"10.1080\/14017430510035970"},{"key":"e_1_2_6_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijcard.2016.11.190"},{"key":"e_1_2_6_18_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10554-017-1117-z"},{"key":"e_1_2_6_19_1","doi-asserted-by":"publisher","DOI":"10.1093\/ehjci\/jex140"}],"container-title":["Echocardiography"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2Fecho.14312","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/echo.14312","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1111\/echo.14312","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/echo.14312","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,9,10]],"date-time":"2023-09-10T08:05:35Z","timestamp":1694333135000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/echo.14312"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,3,13]]},"references-count":18,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2019,4]]}},"alternative-id":["10.1111\/echo.14312"],"URL":"https:\/\/doi.org\/10.1111\/echo.14312","archive":["Portico"],"relation":{},"ISSN":["0742-2822","1540-8175"],"issn-type":[{"value":"0742-2822","type":"print"},{"value":"1540-8175","type":"electronic"}],"subject":[],"published":{"date-parts":[[2019,3,13]]},"assertion":[{"value":"2018-12-22","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2019-02-18","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2019-03-13","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}