Tao, Z., Qitao, L., Huiling, L., Ke, S., Shiyi, Y., Kaixiong, C. (2026). TopoSFI-MUNet: a topological spatial–frequency interaction network for cross-modal medical image segmentation. Journal of King Saud University - Computer and Information Sciences. https://doi.org/10.1007/s44443-026-00977-z