RT Book, Section A1 Korjian, Serge A1 Pinto, Duane S. A2 Baliga, R. R. A2 Lilly, Scott M. A2 Abraham, William T. SR Print(0) ID 1160207745 T1 Subclavian Artery Stenosis T2 Color Atlas and Synopsis of Interventional Cardiology YR 2018 FD 2018 PB McGraw-Hill Education PP New York, NY SN 9780071749350 LK accesscardiology.mhmedical.com/content.aspx?aid=1160207745 RD 2024/10/09 AB The subclavian arteries provide blood supply to both upper extremities and give rise to major arterial branches, including the vertebral arteries, the internal thoracic arteries, and the costocervical and thyrocervical trunks. The internal thoracic artery is also called the left internal mammary artery (LIMA). This branch of a subclavian artery is significant in its frequent use for coronary artery bypass graft (CABG) surgery. It is often used for bypass of the left anterior descending artery of the heart, and thus, if subclavian stenosis is present in such patients, coronary insufficiency can result. It is important to know that the LIMA has an anterior take off from the subclavian artery when attempting to cannulate this vessel for ­selective angiography.