{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,24]],"date-time":"2026-06-24T07:55:51Z","timestamp":1782287751103,"version":"3.54.5"},"reference-count":11,"publisher":"Springer Science and Business Media LLC","issue":"8","license":[{"start":{"date-parts":[[2024,4,19]],"date-time":"2024-04-19T00:00:00Z","timestamp":1713484800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2024,4,19]],"date-time":"2024-04-19T00:00:00Z","timestamp":1713484800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Pediatr Radiol"],"abstract":"<jats:title>Abstract<\/jats:title><jats:p>A transseptal coronary artery course, also known as a transconal course, is an anomalous course of the left main coronary artery (LMCA) or the left anterior descending artery (LAD) through the conal septal myocardium. The conal septal myocardium is the posterior wall of the right ventricular outflow tract (RVOT), acting as a dividing myocardial wall between the subaortic and subpulmonary outflow tracts. The initial segment of a transseptal coronary artery has an extraconal course between the aorta and the RVOT cranial to the true intramyocardial segment. The transseptal coronary artery then emerges out of the conal septal myocardium at the epicardial surface on the lateral aspect of the RVOT. Many consider the transseptal coronary artery to be a benign entity. However, there are few case reports of severe cardiac symptoms such as myocardial ischemia, arrhythmia, and even sudden cardiac deaths due to potential coronary artery compression in the systolic phase.\u200b In this article, we seek to describe the imaging findings of transseptal coronary artery course on coronary computed tomography angiography (CTA), discuss their clinical analysis, and briefly discuss the management of these lesions.<\/jats:p>\n                <jats:p><jats:bold>Graphical abstract<\/jats:bold><\/jats:p>","DOI":"10.1007\/s00247-024-05911-x","type":"journal-article","created":{"date-parts":[[2024,4,19]],"date-time":"2024-04-19T03:34:46Z","timestamp":1713497686000},"page":"1261-1269","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Transseptal coronary artery\u2014a pictorial review"],"prefix":"10.1007","volume":"54","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2783-1368","authenticated-orcid":false,"given":"Vijetha V","family":"Maller","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jason N.","family":"Johnson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Umar","family":"Boston","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christopher","family":"Knott-Craig","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2024,4,19]]},"reference":[{"key":"5911_CR1","doi-asserted-by":"crossref","unstructured":"Molossi S, Agrawal H, Mery CM, Krishnamurthy R, Masand P, Sexson Tejtel SK, Noel CV, Qureshi AM, Jadhav SP, McKenzie ED, Fraser CD Jr (2020) Outcomes in anomalous aortic origin of a coronary artery following a prospective standardized approach. 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AJR Am J Roentgenol 204:W104-109","journal-title":"AJR Am J Roentgenol"},{"key":"5911_CR6","doi-asserted-by":"publisher","first-page":"193","DOI":"10.1590\/0100-3984.2017.0203","volume":"52","author":"AFP Ferreira","year":"2019","unstructured":"Ferreira AFP, Rosemberg S, Oliveira DS, Araujo-Filho JAB, Nomura CH (2019) Anomalous origin of coronary arteries with an interarterial course: pictorial essay. Radiol Bras 52:193\u2013197","journal-title":"Radiol Bras"},{"key":"5911_CR7","doi-asserted-by":"publisher","first-page":"549","DOI":"10.1016\/j.radcr.2018.02.009","volume":"13","author":"T Glushko","year":"2018","unstructured":"Glushko T, Seifert R, Brown F, Vigilance D, Iriarte B, Teytelboym OM (2018) Transseptal course of anomalous left main coronary artery originating from single right coronary orifice presenting as unstable angina. Radiol Case Rep 13:549\u2013554","journal-title":"Radiol Case Rep"},{"key":"5911_CR8","doi-asserted-by":"crossref","unstructured":"Doan TT, Zea-Vera R, Agrawal H, Mery CM, Masand P, Reaves-O\u2019Neal DL, Noel CV, Qureshi AM, Sexson-Tejtel SK, Fraser CD Jr, Molossi S (2020) Myocardial ischemia in children with anomalous aortic origin of a coronary artery with Intraseptal Course. Circ Cardiovasc Interv 13","DOI":"10.1161\/CIRCINTERVENTIONS.119.008375"},{"key":"5911_CR9","doi-asserted-by":"crossref","unstructured":"Moscatelli S, Bianco F, Cimini A, Panebianco M, Leo I, Bucciarelli-Ducci C, Perrone MA (2023) The use of stress cardiovascular imaging in pediatric population. 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