Computer-Assisted Navigation on the Arrested Heart During CABG Surgery

Abstract

Abstract. Coronary artery bypass grafting (CABG) is the standard treatment for advanced coronary artery diseases (CAD). Optimal placement of the bypass graft on the diseased vessel is very important. To assist the surgeon in this matter, a computer assistance system has been developed facilitating navigation on the heart surface. After retrospective validation on patient data sets yielded good results, the system was successfully applied for in-vivo navigation on the front side of the heart during several CABG procedures. Postoperative evaluation confirmed that intraoperative navigation has been performed with adequate accuracy.

Towards Projector-Based Visualization for Computer-Assisted CABG at the Open Heart

“…Enhancing current clinical practice with a concept for computer-assistance comprising preoperative planning and intraoperative navigation helps the surgeon with the fast and accurate localization of the optimal anastomosis site for bypass grafting. For the left anterior descending coronary artery (LAD), intraoperative navigation is possible both at the beating [1] and at the arrested heart [2] yielding mean accuracies of approximately 2.5 mm. For navigation at the beating heart, preprocedural information extracted from a multi-slice computed tomography (MSCT), i.e.…”