Transthoracic three-dimensional echocardiography visualization of functional anatomy of double-orifice mitral valve.

Budoff MJ et al. SCCT guidelines for the interpretation and reporting of coronary computed tomographic angi-ography. A et al. The association between coronary arterial dominancy and extent of coronary artery disease in angiography and paraclinical studies. Length of left main coronary artery. Lack of correlation to coronary artery dominance and bicus-pid aortic valve: an autopsy study of 54 cases. Pattern of coronary arterial distribution and its relation to coronary artery diameter. et al. Prognostic value of coronary vessel dominance in relation to significant coronary artery disease determined with non-invasive computed tomography coronary angiography. Left anterior descending artery length in left and right coronary artery dominance. Estudo com-parativo do padrão de circulação coronariana entre peças anatô micas e pacientes cirúrgicos. A 14-year-old boy was referred to our echocardiography laboratory because of a recent history of palpitations. Both physical examination and ECG were unremarkable. An ambulatory ECG recording detected only rare supraventricular ectopic beats. A two-dimensional transthoracic echocar-diogram (2DE, Panel A, see Supplementary data online, Video S1) raised the suspect of a double-orifice mitral valve (DOMV), without either stenosis or regurgitation at colour and spectral Doppler analyses (Panel B). Three-dimensional transthoracic echocar-diography (3DE) visualization of the valve from both ventricular and atrial perspectives (Panels C and D, see Supplementary data online, Videos S2 and S3) clearly showed the double orifices (white *) with a central bridge of abnormal tissue connecting the anterior with the posterior leaflet. The two orifices were asymmetric, being the medial orifice slightly larger than the lateral one. Valvular leaflets were thin and normally sized. There were two papillary muscles that showed normal morphology and position. No other combined congenital abnormalities were detected. The patient was discharged without performing additional tests and no prescription.