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Coronary Computed Tomography: Identification of a Novel Type of Dual Left Anterior Decending Coronary Artery Circulation

Kinan Carlos El-Tallawi, Charbel Saade, Wael AlJaroudi and Antoine Abchee

Coronary computed tomography angiography (CCTA) has many advantages over invasive coronary angiography. It allows the detection of anomalous vessels and their relationship to heart structures. Dual left anterior descending coronary artery (LAD) anomaly is defined by the presence of two LADs. It is categorized on the basis of a long and short LAD. We present a novel type in which one long LAD branches from the right coronary artery (RCA) and the other LAD, a long vessel as well, branches from the left main coronary artery (LMCA). They course in parallel to terminate at the apex. This pattern defies the current short-long classification. We suggest it to be a novel pattern.