Presentation TCT 2012 Distorted Balloon Shape During Predilatation Before Stenting Predicts Stent Underexpansion Presenter: Shinichiro Yamada, Hiroyuki Shibata, Takatoshi Hayashi, Tomofumi Takaya, Naoki Miyoshi, Shougo Oishi, Yasuyo Tainiguchi, Katsunori Okajima, Akira Shimane, Kiminobu Yokoi, Gaku Kanda, Seiichi Kobayashi, Takayoshi Toba, Mitsuhiro Yokoyamada January 03, 2012