{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,10]],"date-time":"2026-04-10T09:30:03Z","timestamp":1775813403989,"version":"3.50.1"},"reference-count":26,"publisher":"Cambridge University Press (CUP)","issue":"2","license":[{"start":{"date-parts":[[2012,4,26]],"date-time":"2012-04-26T00:00:00Z","timestamp":1335398400000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Cardiol Young"],"published-print":{"date-parts":[[2013,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Malposition of the branch pulmonary arteries is a rare malformation with two forms. In the typical form, pulmonary arteries cross each other as they proceed to their respective lungs. The \u201clesser form\u201d is characterised by the left pulmonary artery ostium lying directly superior to the ostium of the right pulmonary artery, without crossing of the branch pulmonary arteries. Malposition of the branch pulmonary arteries is often associated with other congenital heart defects and extracardiac anomalies, as well as with 22q11.2 microdeletion. We report three infants with crossed pulmonary arteries and one adolescent with \u201clesser form\u201d of the malformation. The results suggest that diagnosis of malposition of the branch pulmonary arteries could be challenging if based solely on echocardiography, whereas modern imaging technologies such as contrast computed tomography and magnetic resonance angiography provide reliable establishment of diagnosis. In addition, we performed the first molecular characterisation of the 22q11.2 region among patients with malposition of the branch pulmonary arteries and revealed a 3-megabase deletion in two out of four patients.<\/jats:p>","DOI":"10.1017\/s1047951112000571","type":"journal-article","created":{"date-parts":[[2012,4,26]],"date-time":"2012-04-26T11:47:56Z","timestamp":1335440876000},"page":"181-188","source":"Crossref","is-referenced-by-count":19,"title":["The role of modern imaging techniques in the diagnosis of malposition of the branch pulmonary arteries and possible association with microdeletion 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