PEW-SegDiff: Feature Pyramids Edge-Weighted Diffusion Segmentation model for ultrasound thyroid nodule. - Hui Bi 003; Zhaohui Dong; Jiawei Sun; Yibo Jiang; Fan Wang; Ciman Chai; Huazhong Shu; Xinye Ni (Biomed. Signal Process. Control., 2025)