Time-dependent diffusion MRI combined with enhanced MRI and clinical indicators for preoperative prediction of CK19 expression status in hepatocellular carcinoma: a prospective study. - Wei YC; Qin XQ; Li JS; Tao YF; Yang C; Huang QL; Yu YY; Zhang H; Qin H; Feiweier T; Liao JY (Magnetic resonance imaging, 2026)