New quantitative indices of cardiac amyloidosis with 99mTc-pyrophosphate scintigraphy. - Matsuda, Noritake; Otsuka, Hideki; Otani, Tamaki; Azane, Shota; Kunikane, Yamato; Otomi, Yoichi; Ueki, Yuya; Kubota, Masahiro; Amano, Masafumi; Yagi, Shusuke; Sata, Masataka; Harada, Masafumi (Japanese Journal of Radiology, 2023)