Walt Baxter is a Distinguished Scientist in the Cardiac Rhythm Management business at Medtronic. Walt's expertise includes medical device kinematics and deformation in vivo-he used calibrated high-speed cineradiography to make early measurements of implanted cardiac lead deformation. Walt obtained a bachelor's degree in Mechanical Engineering from the Georgia Institute of Technology and a Ph.D. in Bioengineering at the University of California, San Diego.

Ryan Lahm is a Senior Engineering Manager in the Cardiac Rhythm Management business at Medtronic. Ryan is an expert in measuring interactions between medical devices and anatomy-he used some of the first contrast-enhanced volumetric medical images (primarily MRI and CT) to measure how cardiac anatomy interacts with permanently implanted leads and catheters. Ryan obtained a bachelor's degree in Physics from Bethel University and a M.S. in Biomedical Engineering at the University of Minnesota.

Both editors have served patients through their work in the medical technology industry for over 25 years.

Introduction to use conditions for design, test, computational modeling, and procedure development.- Procedural or handling impact on acute and chronic performance (misuse).- Medical images to measure use conditions (CT, MRI, ultrasound, fluoro, x-ray, etc.).- Use condition considerations for lead and catheter design.- Population-based use condition measurement to serve many patients.- Use conditions that impact wireless communication.- Device migration.- Chronic healing response and impact on device performance: the balance of tissue-device interaction.- Flexible device shape history (impact on mechanical reliability).- Relative motion between implanted medical devices.- Measuring deformation/motion cycle counts within a patient population.- Clinical relevance of measurements acquired from pre-clinical models.- The role of returned product and failure analysis as an input to use condition analysis.- Ambulatory measurements i.e. posture-induced movement/loads.