Fig. 5

Brain metastases (lung origin), 64-year-old male. (a1) T1w MRI without contrast enhancement at 3.0 T and (b1) T1w MRI without contrast enhancement at 5.0 T. (a2) Full-dose enhanced T1w MRI at 3.0 T and (b2) half-dose enhanced T1w MRI at 5.0 T. As depicted within the red circle, the augmentation of the lesion parenchyma exhibits a slightly greater intensity at 3.0 T compared to 5.0 T. However, in terms of delineating the intricacies of the lesion, 5.0 T surpasses 3.0 T due to its employment of a thinner scanning layer thickness and higher resolution