This book is a work aimed to study anatomic variations of Sudanese using cardiac CT scan Angiography (CTA). The book simple and concise, it consist five chapters contain introduction about coronary arteries anomalies and anatomic variations and problem of this study and objectives, in addition to theoretical background and previous studies. Also the book consist materials and methods of acquisition data of study. Finally the book contain bio statistics results about anatomic variations of coronary arteries and conclusions.