Intravascular Ultrasound Assessment of the Incidence and Predictors of Edge Dissections After Drug-Eluting Stent Implantation
Xuebo Liu, Kenichi Tsujita, Akiko Maehara, Gary S. Mintz, Giora Weisz, George D. Dangas, Alexandra J. Lansky, Edward M. Kreps, LeRoy E. Rabbani, Michael Collins, Gregg W. Stone, Jeffrey W. Moses, Roxana Mehran and Martin B. Leon
Angiography showed type E dissection proximal to stent edge (arrows indicate dissection site on the pre- and post-stent angiograms) in the mid-right coronary artery. The cross-sectional intravascular ultrasound image showed that the hematoma was stopped by right ventricular (RV) branch. The intravascular ultrasound demonstrated an intramural hematoma without contrast retention. (A) The cross-sectional intravascular ultrasound images before stenting. (B) The cross-sectional intravascular ultrasound images after stent implantation showing a hematoma in sections 2 to 5; individual cross sections correspond to the equivalent sections in A. (C) Longitudinal intravascular ultrasound image after stenting. Long arrow indicates the proximal stent edge and the hematoma start point that extended proximally. The intramural hematoma was 13.1 mm in length. Short arrows indicate the intramural hematoma without contrast retention.