Prognostic significance of angiography-derived index of microcirculatory resistance assessment after rotational atherectomy in patients with severely calcified lesions. - Sakamoto Y; Kawamori H; Toba T; Sasaki S; Fujii H; Hamana T; Osumi Y; Iwane S; Yamamoto T; Naniwa S; Matsuhama K; Fukuishi Y; et al. (Heart and vessels, 2025)