An investigation of the anatomical variations of left atrial appendage by multidetector computed tomographic coronary angiography

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dc.contributor.authorKoplay, Mustafa
dc.contributor.authorErol, Cengiz
dc.contributor.authorPaksoy, Yahya
dc.contributor.authorKivrak, Ali Sami
dc.contributor.authorOzbek, Seda
dc.date.accessioned2020-03-26T18:23:49Z
dc.date.available2020-03-26T18:23:49Z
dc.date.issued2012
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractPurpose: The left atrial appendage (LAA) is usually known as a long, tubular, hooked structure derived from the left atrium. However, it varies widely in terms of anatomical shape. In this study, anatomical shape variations of the LAA were investigated and classified in vivo in a large group of patients by multidetector computed tomography (MDCT) coronary angiography. Materials and Methods: The study included 320 consecutive patients (223 men and 97 women, with a mean age of 58 years) who underwent MDCT coronary angiography. MDCT was performed with a 64-detector-row computed tomographic scanner. LAA anatomical variations were classified as five main types and further divided into subtypes. In addition, we gave the classifications descriptive names according to the anatomical external appearance of the LAA: horseshoe (type 1), hand-finger (type 2a), fan (type 2b), wing (type 2c), hook (type 3), wedge (type 4) and swan (type 5) shapes. The types and subtypes of the LAA variations and the presence of thrombus were recorded. Results: In our study, the LAA tip orientation was used and the LAA was divided into type 1, type 2a, 2b, 2c, type 3, type 4 and type 5 in 44 (13.8%), 65 (20.3%), 155 (48.4%), 8 (2.5%), 27 (8.4%), 6 (1.9%) and 15 (4.7%) patients, respectively. LAA thrombus was detected in four patients (1.25%), who had classified LAA shapes of type 2a and type 2b. Conclusions: The LAA has multiple anatomical shape variations. We demonstrated previously undefined new shape types of LAA. Knowledge of LAA variations is important in order to avoid procedure-related complications when ablative treatment is to be performed or if surgical procedures are indicated in this region. MDCT coronary angiography provides important and detailed information about determining and evaluating these variations before undertaking a planned procedure in this region. (C) 2011 Elsevier Ireland Ltd. All rights reserved.en_US
dc.identifier.doi10.1016/j.ejrad.2011.04.060en_US
dc.identifier.endpage1580en_US
dc.identifier.issn0720-048Xen_US
dc.identifier.issn1872-7727en_US
dc.identifier.issue7en_US
dc.identifier.pmid21592706en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1575en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.ejrad.2011.04.060
dc.identifier.urihttps://hdl.handle.net/20.500.12395/27733
dc.identifier.volume81en_US
dc.identifier.wosWOS:000304590300038en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherELSEVIER IRELAND LTDen_US
dc.relation.ispartofEUROPEAN JOURNAL OF RADIOLOGYen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectLeft atrial appendageen_US
dc.subjectVariationsen_US
dc.subjectMDCTen_US
dc.titleAn investigation of the anatomical variations of left atrial appendage by multidetector computed tomographic coronary angiographyen_US
dc.typeArticleen_US

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