The Complex and High-Risk Interventional Procedures (CHIP) fellowship at New York Presbyterian/Weill Cornell Medicine is a one-year, non-ACGME-accredited fellowship designed to provide advanced training in percutaneous coronary intervention (PCI) strategies for patients with complex lesion subsets including chronic total occlusion (CTO) as well as associated comorbidities and/or hemodynamic instability. This advanced fellowship will hold an academic rank of Instructor in Medicine. Fellowship Curriculum:1.  CTO intervention encompassing all advanced crossing strategies High-level integration of non-invasive imaging modalities for patient selection (cardiac PET and MRI) and procedural planning (coronary CT an