“…Therapy‐resistant angina pectoris may encourage the cardiologist to intervene in target lesions located in distal vessel segments. In case of prior coronary bypass grafting, a critical stenosis may be only reached via accessing a previously implanted bypass graft 3,4 . Recently, a magnetic navigation and steering system (Niobe II ® MNS; Stereotaxis Inc., St. Louis, MO, USA) was introduced into the field of vascular and coronary intervention 5–7 .…”