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ECG-gated multi-slice computed tomography in the detection of atrial septal aneurysms.

An atrial septal aneurysm (ASA) is an uncommon cardiac abnormality. Clinical manifestation of this abnormality remains unclear: some authors have suggested an association between ASA and arrhythmias or between ASA and cerebral ischaemia. A major role in the diagnosis of ASA to date has been played by transoesophageal echocardiography and transthoracic echocardiography. The purpose of this paper is to present the role of multi-slice computed tomography with ECG gating in the detection and analysis of ASA.