Comparison of Morphological Patterns Between In-Stent Restenosis Lesions of Overlapping and Non-Overlapping Second- and Third-Generation Stents Using Optical Frequency Domain Imaging.

Purpose: To analyze the difference in morphological patterns between in-stent restenosis (ISR) lesions of overlapping segments and ISR lesions of non-overlapping segments with second- and third-generation drug-eluting stents (DESs) using optical frequency domain imaging (OFDI).

Methods: We analyzed 23 consecutive ISR lesions after second- or third-generation DES implantation using OFDI.

Results: A total of 18 men and 5 women (median age, 68.