Simulation methodology for coronary artery bypass graft (CABG) patients in SimVascular (www.simvascular.org). Major steps in the pipeline are (a) acquire CT image of a CABG patient, (b) create centerline paths and segment the lumen, (c) loft the segmentations to form a 3D model, (d) discretize the 3D model into a finite element mesh, (e) assign material properties, (f) tune lumped parameter network to match clinical and literature targets, (g) solve governing equations on patient-specific models. Analyze and post-process results to determine clinically relevant quantities