Suboptimal or incomplete coronary stent expansion is associated with increased restenosis rate and target vessel revascularization. Stent visualisation with plain fluoroscopy has become challenging due to reduction of stent strut thickness. Inability of stent or balloon delivery is a frequent cause of procedural failures in percutaneous coronary interventions. This case report highlights the role of a novel stent enhancing technique, StentBoost, in recognition and management of incomplete stent expansion and of the Guideliner catheter, which is an essential assist device in complex and challenging coronary interventions, especially via the radial access
