PFHFF: Parameter-Friendly Hierarchical Feature Fusion Module for Enhanced Epicardium Segmentation in CT Images. - Ibuki Naka; Rahul Kumar Jain 001; Yinhao Li; Xianhua Han; Atsuyuki Wada; Atsunori Kashiwagi; Yutaro Iwamoto; Kiyosumi Maeda; Yen-Wei Chen 001; Yuji Tezuka (ICCE, 2026)