Use of intravascular optical coherence tomography or intravascular ultrasound to guide stent implantation. The choice is yours!
In the current issue of EuroIntervention, the one-year follow-up of the ILUMIEN III trial1 and the design and rationale of the ILUMIEN IV trial2 are presented. Both trials are part of a series of clinical studies designed to provide hypothesis-generating knowledge and hypothesis-confirming answers in a systematic way. The prospective, observational ILUMIEN I trial demonstrated that the anatomical vessel information, as provided by optical coherence tomography (OCT), impacts on the clinician’s decision making during percutaneous conronary intervention (PCI) concerning stent size, length and post-dilatation3. The retrospective, post hoc, matched pair ILUMIEN II trial revealed that clinicians