The images show CE-T1-WIs (A-H); axial images (A-D); sagittal images in the left hemispheres (E-H); before the SRS boost (at 8 fr of the WBRT) (A, E); at 1.7 months after the initiation of WBRT (29 days after the completion of SRS boost) (B, F); at 4 months after the WBRT initiation (C, G); and at 11.4 months (D, H).
(A-H) These images are shown at the same magnification and coordinates under co-registration and fusion based on the pre-SRS images. All the seven lesions remarkably shrunk at 1.7 months and further regressed after that at 11.4 months, with the solid components almost disappearing.
CE: contrast-enhanced; WIs: weighted images; SRS: stereotactic radiosurgery; fr: fractions; WBRT: whole-brain radiotherapy