Use of Optical Coherence Tomography to Guide the Selection of RA Conduits for CABG
Pranjal H. Desai, MD, Stanislay Henkin, MD, Alex Brown, MD, Tara Melillo, MD, Pluen Ziu, MD, Robert Ziu, MD
Boston University School of Medicine, Boston, MA
PURPOSE OF STUDY
Risks of pre-existing plaque, injury or spasm during harvest make the radial artery (RA) a controversial conduit for coronary artery bypass grafting (CABG). We hypothesize that intraoperative imaging facilitates the selection of the most optimal RA for grafting and therefore would improve results for this conduit.
CABG patients scheduled to receive a RA graft underwent harvest using open (n=25) or endoscopic (n=25) techniques. RA imaging was performed in situ and ex vivo by inserting a sterile 1F optical coherence tomography (OCT) catheter into the vessel prior to and after harvest. Images were evaluated for intimal injury, medial calcifications and retained clot.