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(A) T2w MRI features investigated at different time points of pre-radiotherapy and on day 1, day 4, and day 8 post-radiotherapy for three different rats. The irradiated tumors were still growing during the postradiation development. (B) Tumor cross-section areas obtained from the APTw images at different time points of pre-radiation and on day 1, day 4, and day 8 postradiation. The statistical significance of the difference compared with pre-radiation: ***p < 0.001.
