Liver metastases are a prevalent and critical determinant of prognosis in cancer patients. Early and accurate detection of liver metastases is crucial, as it directly influences treatment decisions and patient outcomes. In clinical practice, contrast-enhanced CT is a primary modality for liver imaging, enabling both staging and surveillance of malignancies at risk for hepatic spread. However, conventional single-energy CT (SECT) often struggles to detect small or subtle lesions, particularly in …