[BMJ Publishing Group Ltd and British Cardiovascular Society British Cardiovascular Intervention Society, Young Investigator Award Shortlisted Presentations, Royal College of Physicians of London, November 30 2017 - ()] Shortlisted moderated abstracts presented at YIA research abstract day, 30 November 2017 - 4 Renal function-based contrast dosing to define ‘prognostic’ contrast limits in patients undergoing coronary angioplasty