title: The prevalence of coronary artery anomalies in Qassim Province detected by cardiac computed tomography angiography.
abstract: BACKGROUND
  Coronary artery anomalies (CAAs) affect about 1% of the general population based on invasive coronary angiography (ICA) data, computed tomography angiography (CTA) enables better visualization of the origin, course, relation to the adjacent structures, and termination of CAAs compared to ICA.
  
  
  OBJECTIVE
  The aim of our work is to estimate the frequency of CAAs in Qassim province among patients underwent cardiac CTA at Prince Sultan Cardiac Center.
  
  
  METHODS
  Retrospective analysis of the CTA data of 2235 patients between 2009 and 2015.
  
  
  RESULTS
  The prevalence of CAAs in our study was 1.029%. Among the 2235 patients, 241 (10.78%) had CAAs or coronary variants, 198 (8.85%) had myocardial bridging, 34 (1.52%) had a variable location of the Coronary Ostia, Twenty two (0.98%) had a separate origin of left anterior descending (LAD) and left circumflex coronary (LCX) arteries, ten (0.447%) had a separate origin of the RCA and the Conus artery. Seventeen (0.76%) had an anomalous origin of the coronaries. Six (0.268%) had a coronary artery fistula, which is connected mainly to the right heart chambers, one of these fistulas was complicated by acute myocardial infarction.
  
  
  CONCLUSIONS
  The incidence of CAAs in our patient population was similar to the former studies, CTA is an excellent tool for diagnosis and guiding the management of the CAAs.
authors.affiliation: Department of Cardiology, Cardiac Imaging Department, Prince Sultan Cardiac Center Al-Qassim, Buraydah, aSaudi Arabia.
authors.forename: Osama A
authors.initials: OA
authors.lastname: Smettei
authors.affiliation: Department of Cardiology, Cardiac Imaging Department, Prince Sultan Cardiac Center Al-Qassim, Buraydah, aSaudi Arabia.
authors.forename: Sawsan
authors.initials: S
authors.lastname: Sayed
authors.affiliation: Department of Cardiology, Cardiac Imaging Department, Prince Sultan Cardiac Center Al-Qassim, Buraydah, aSaudi Arabia.
authors.forename: Rami M
authors.initials: RM
authors.lastname: Abazid
keywords: Cardiac computed tomography; Coronary artery anomalies; Prevalence