{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T03:57:00Z","timestamp":1790827020151,"version":"4.1.0"},"reference-count":19,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T00:00:00Z","timestamp":1790726400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T00:00:00Z","timestamp":1790726400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Echocardiography"],"published-print":{"date-parts":[[2026,10]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Echocardiography is widely used for non\u2010invasive measurements of stroke volume and cardiac output, while Ultrasonic Cardiac Output Monitor (USCOM) offers an alternative Doppler\u2010based approach. Whether these two modalities can be used interchangeably in clinical practice remains unclear. This study aims to evaluate the correlation and agreement between echocardiography and USCOM for hemodynamic assessment.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>A total of 44 pediatric patients underwent hemodynamic assessment using echocardiography and sequential USCOM measurement during the same evaluation. Spearman's rank correlation was used to assess the relationship between methods. Agreement was evaluated using Bland\u2010Altman analysis.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Strong correlations were found for stroke volume (SV;\n                      <jats:italic>r<\/jats:italic>\n                      = 0.97), cardiac output (CO;\n                      <jats:italic>r<\/jats:italic>\n                      = 0.95), cardiac index (CI;\n                      <jats:italic>r<\/jats:italic>\n                      = 0.91), stroke volume index (SVI;\n                      <jats:italic>r<\/jats:italic>\n                      = 0.90), and aortic valve (AV) diameter (\n                      <jats:italic>r<\/jats:italic>\n                      = 0.91;\n                      <jats:italic>p<\/jats:italic>\n                      &lt; 0.001), with a moderate correlation for left ventricular outflow tract (LVOT) velocity (\n                      <jats:italic>r<\/jats:italic>\n                      = 0.64,\n                      <jats:italic>p<\/jats:italic>\n                      &lt; 0.001). Bland\u2010Altman analysis revealed echocardiography produced lower values of all parameters compared to USCOM. Significant proportional bias was identified for SV, SVI, CO, and CI (all\n                      <jats:italic>p<\/jats:italic>\n                      \u2264 0.006), indicating that two methods increased disagreement with higher measured values. AV diameter and LVOT velocity showed no significant proportional bias and narrower limits of agreement.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Although echocardiography and USCOM correlate strongly for hemodynamic parameters, clinically meaningful systematic bias and proportional error limit their interchangeability for volumetric flow measurements. These devices should not be used interchangeably for quantitative hemodynamic monitoring, particularly in high\u2010output states.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/echo.70645","type":"journal-article","created":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T03:20:21Z","timestamp":1790824821000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Agreement Between Echocardiography and Ultrasonic Cardiac Output Monitoring (USCOM) for Hemodynamic Assessment in Pediatric Patients: A Bland\u2013Altman Analysis"],"prefix":"10.1111","volume":"43","author":[{"given":"Saviga","family":"Sethasathien","sequence":"first","affiliation":[{"name":"Division of Pediatric Cardiology, Department of Pediatrics, Faculty of Medicine Chiang Mai University  Chiang Mai Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Orana","family":"Arsasuwan","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Faculty of Medicine Chiang Mai University  Chiang Mai Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Theerapon","family":"Jariyasakoolroj","sequence":"additional","affiliation":[{"name":"Division of Pediatric Critical Care Medicine, Department of Pediatrics, Faculty of Medicine Chiang Mai University  Chiang Mai Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Suchaya","family":"Silvilairat","sequence":"additional","affiliation":[{"name":"Division of Pediatric Cardiology, Department of Pediatrics, Faculty of Medicine Chiang Mai University  Chiang Mai Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,9,30]]},"reference":[{"issue":"3","key":"e_1_2_9_2_1","doi-asserted-by":"crossref","first-page":"F213","DOI":"10.1136\/adc.2005.071829","article-title":"Which Inotrope for Which Baby?","volume":"91","author":"Evans N.","year":"2006","journal-title":"Archives of Disease in Childhood Fetal and Neonatal Edition"},{"issue":"12","key":"e_1_2_9_3_1","doi-asserted-by":"crossref","first-page":"1634","DOI":"10.1177\/08850666221099830","article-title":"Comparisons of Continuous\u2010Wave Doppler Ultrasound Monitor and Echocardiography in Cardiac Postoperative Pediatric Patients","volume":"37","author":"Shostak E.","year":"2022","journal-title":"Journal of Intensive Care Medicine"},{"issue":"6","key":"e_1_2_9_4_1","doi-asserted-by":"crossref","DOI":"10.1371\/journal.pone.0199203","article-title":"Comparison of Three Non\u2010Invasive Hemodynamic Monitoring Methods in Critically Ill Children","volume":"13","author":"Chaiyakulsil C.","year":"2018","journal-title":"PLOS ONE"},{"issue":"8476","key":"e_1_2_9_5_1","doi-asserted-by":"crossref","first-page":"307","DOI":"10.1016\/S0140-6736(86)90837-8","article-title":"Statistical Methods for Assessing Agreement Between Two Methods of Clinical Measurement","volume":"1","author":"Bland J. 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