title: Anomalous origin of the three coronary arteries from the right aortic sinus Valsalva: role of MDCT coronary angiography.
abstract: BACKGROUND
  Monocuspal origin of all three coronary arteries through separate ostia from the right aortic sinus (RCS) is a rare occurrence. To date, the use of multidetector computed tomography (MDCT) for imaging of congenitally abnormal coronary arteries has been discussed only in few individual case reports.
  
  
  OBJECTIVE
  To describe the role of MDCT coronary angiography in the evaluation of two rare cases of monocuspal origin of all three coronary from RCS.
  
  
  METHODS
  We had a retrospective review of clinical information and imaging studies for two patients presented with chest pain. Both patients underwent conventional coronary angiography followed by noninvasive imaging with MDCT.
  
  
  RESULTS
  Both patients had anomalous origin of the all three coronary arteries from the RCS. In one case the LAD took an intramural course in between the aorta and the right ventricular outflow tract (RVOT) while it passed anterior to the RVOT in the other patient. In the first patient, there was also associated coronary fistula to the right ventricle along with right coronary artery (RCA) and left anterior descending coronary artery (LAD) narrowing. Both the stenosed segments were successfully stented and were demonstrated to be patent in the subsequent MDCT.
  
  
  CONCLUSIONS
  Monocuspal origin of all three coronary artery from the RCS is a rare anomaly, can be reliably diagnosed by MDCT. CT angiogram is a convenient complementary tool for the coronary arteriography.
authors.affiliation: Department of Cardiology and Cardiovascular Surgery, Hamad Medical Corporation and Hamad General Hospital, Doha, Qatar.
authors.forename: Ayman A
authors.initials: AA
authors.lastname: El-Menyar
authors.forename: K M
authors.initials: KM
authors.lastname: Das
authors.forename: Jassim
authors.initials: J
authors.lastname: Al-Suwaidi
mesh_terms: D002637:Chest Pain / Q000000981:diagnostic imaging* / Q000209:etiology; D017023:Coronary Angiography / Q000379:methods; D003330:Coronary Vessel Anomalies / Q000150:complications / Q000000981:diagnostic imaging*; D006801:Humans; D007090:Image Interpretation, Computer-Assisted; D021621:Imaging, Three-Dimensional; D008297:Male; D008875:Middle Aged; D012850:Sinus of Valsalva / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed