Dissecting the Role of Distal Embolization of Athero-thrombotic Material in Primary PCI: the ThrombOticBurden and mIcrovAscularobStruction (TOBIAS) Study.

demonstrate that FD-OCT guidance is feasible and possibly results in reduction of frequency-domain Optical Coherence Tomography-defined residual thrombus burden after thrombus-aspiration.

Inclusion Criteria:

• ST elevation myocardial infarction
• Ages Eligible for Study: >18 years old
• Genders Eligible for Study: Both (female sex with child-bearing potential excluded)

Exclusion Criteria:

• occluded (TIMI 0) or sub occluded (TIMI 1) proximal vessel of estimated diameter ≥3mm
• intended use of thrombus aspiration