Dr. Kumar Madassery and Dr. Shelly Bhanot discuss catheter shapes and techniques in vascular interventions. They share tips and experiences with different catheters, including triaxial support and hydrophilic catheters. The podcast covers accessing major branch vessels, comparing catheter techniques, navigating the aorto-iliac bifurcation, and vein access. They emphasize the importance of training, experience, and the power of teaching in becoming proficient with catheter shapes.