{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,30]],"date-time":"2025-10-30T11:28:16Z","timestamp":1761823696372,"version":"build-2065373602"},"reference-count":32,"publisher":"BMJ","issue":"4","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["Heart"],"published-print":{"date-parts":[[1997,10,1]]},"abstract":"<jats:sec>\n                  <jats:title>Objective<\/jats:title>\n                  <jats:p>To determine whether transthoracic three dimensional echocardiography is an accurate non-invasive technique for defining the morphology of atrial septal defects (ASD).<\/jats:p>\n               <\/jats:sec>\n               <jats:sec sec-type=\"methods\">\n                  <jats:title>Methods<\/jats:title>\n                  <jats:p>In 34 patients with secundum ASD, mean (SD) age 20 (17) years (14 male, 20 female), the measurements obtained from three dimensional echocardiography were compared to those obtained from magnetic resonance imaging (MRI) or surgery. Three dimensional images were constructed to simulate the ASD view as seen by a surgeon. Measured variables were: maximum and minimum vertical and horizontal ASD dimension, and distances to inferior and superior vena cava, coronary sinus, and tricuspid valve. In each patient two ultrasound techniques were used to acquire three dimensional data: standard grey scale imaging (GSI) and Doppler myocardial imaging (DMI).<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Results<\/jats:title>\n                  <jats:p>Good correlation was found in maximum ASD dimension (both horizontal and vertical) between three dimensional echocardiography and both MRI (GSI <jats:italic>r<\/jats:italic> = 0.96, SEE = 0.05 cm; DMI <jats:italic>r<\/jats:italic> = 0.97, SEE = 0.04 cm) and surgery (GSI <jats:italic>r<\/jats:italic>= 0.92, SEE = 0.06 cm; DMI <jats:italic>r<\/jats:italic> = 0.95, SEE = 0.06 cm). The systematic error was similar for both three dimensional techniques when compared to both MRI (GSI = 0.40 cm (27%); DMI = 0.38 cm (25%)) and surgery (GSI = 0.50 cm (29%); DMI = 0.37 cm (22%)). A significant difference was found in both horizontal and vertical ASD dimension changes during the cardiac cycle. This change was inversely correlated with age. These findings were consistent for both DMI and GSI technique. In children (age \u2a7d\u200917 years), the feasibility of detecting structures and undertaking measurements was similar for both echo techniques. However, in adult ASD patients (age \u2a7e\u200918 years) this feasibility was higher for DMI than for GSI.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusions<\/jats:title>\n                  <jats:p>Transthoracic three dimensional imaging using both GSI and DMI accurately displayed the varying morphology, dimensions, and spatial relations of ASD. However, DMI was a more effective technique than GSI in describing ASD morphology in adults.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1136\/hrt.78.4.382","type":"journal-article","created":{"date-parts":[[2014,10,22]],"date-time":"2014-10-22T15:31:45Z","timestamp":1413991905000},"page":"382-389","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":36,"title":["Assessment of atrial septal defect morphology by transthoracic three dimensional echocardiography using standard grey scale and Doppler myocardial imaging techniques: comparison with magnetic resonance imaging and intraoperative findings"],"prefix":"10.1136","volume":"78","author":[{"given":"Aleksandra","family":"Lange","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mohammed","family":"Walayat","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Colin M","family":"Turnbull","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Przemyslaw","family":"Palka","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pankaj","family":"Mankad","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"George R","family":"Sutherland","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michael J","family":"Godman","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[1997,10,1]]},"reference":[{"key":"2025101714205127000_78.4.382.1","doi-asserted-by":"publisher","DOI":"10.1136\/hrt.46.1.55"},{"key":"2025101714205127000_78.4.382.2","doi-asserted-by":"publisher","DOI":"10.1136\/hrt.71.3.219"},{"key":"2025101714205127000_78.4.382.3","doi-asserted-by":"publisher","DOI":"10.1016\/0003-4975(94)90768-4"},{"key":"2025101714205127000_78.4.382.4","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-5223(96)70307-0"},{"key":"2025101714205127000_78.4.382.5","doi-asserted-by":"crossref","first-page":"751","DOI":"10.1161\/01.CIR.82.3.751","article-title":"Double-umbrella closure of atrial defects. Initial clinical applications.","volume":"82","author":"Rome","year":"1990","journal-title":"Circulation"},{"key":"2025101714205127000_78.4.382.6","doi-asserted-by":"crossref","first-page":"1754","DOI":"10.1161\/01.CIR.88.4.1754","article-title":"Experimental atrial septal defect closure with a new, transcatheter, self-centering device.","volume":"88","author":"Das","year":"1993","journal-title":"Circulation"},{"key":"2025101714205127000_78.4.382.7","doi-asserted-by":"crossref","first-page":"621","DOI":"10.1161\/01.CIR.88.2.621","article-title":"Echocardiographic follow-up of atrial septal defect after catheter closure by double-umbrella device.","volume":"88","author":"Boutin","year":"1993","journal-title":"Circulation"},{"key":"2025101714205127000_78.4.382.8","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9149(94)90235-6"},{"key":"2025101714205127000_78.4.382.9","doi-asserted-by":"publisher","DOI":"10.1136\/hrt.69.1.52"},{"key":"2025101714205127000_78.4.382.10","doi-asserted-by":"crossref","unstructured":"Magni G, Hijazi ZM, Marx G, Das G, Delabays A, Levine J,et al. 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