Fig. 2

Metastatic tumor images. a.T2 FLAIR image; b.T1WI; c. DWI; d. CEST Original map; e. CEST Z spectrum: The red arrow area is shown as lesion-parenchymal areas, The white arrow area is shown as edema areas and The pink arrow area is shown as non-focus areas; f. CEST MTR map and T2 FLAIR image fusion: The red arrow area is shown as lesion-parenchymal areas, The white arrow area is shown as edema areas and The pink arrow area is shown as non-focus areas