The purpose of our study is to show the value of ECG gated 64-MDCT as an non - invasive and reliable method for simultaneous assessment of coronary arteries as part of the aortic root evaluation. Methods and Materials. From February 2009 until March 2010 we performed 46 ECG - gated, 64 MDCT examinations to confirm a diagnosis of suspected aorta ascendens dissection . A transthoracic (TTE) and/or transesophageal (TEE) echocardiography was initially performed in all patients ( mostly TEE) Patients (pts) with arrhythmia and non-stable haemodynamic conditions were excluded. All MDCT scans were performed with retrospectively ECG gated technique (0,625mm slice thickness). Premedicaton with i.v. betaBlocker (propranolol) was administrated in all with heart rate> 70 bpm
