Assessing Response to Radiation Therapy Treatment of Bone Metastases: Short-Term Followup of Radiation Therapy Treatment of Bone Metastases with Diffusion-Weighted Magnetic Resonance Imaging
Figure 3
MRI: before therapy ((a), (b), (g)), 29 days after therapy ((c), (d), (h)), and 58 days after therapy ((e), (f), (i)). Pattern of good response to radiation therapy: tumor necrosis determines increased water diffusivity manifested as higher ADC SIR ((a): 1.11; (c): 2.01; (e): 2.64) and decreased hyperintensity on high b-value images (SIR (b): 1.08; (d): 0.96; (f): 0.57). Lesion remains hypointense on T1-weighted MRI ((g), (h), (i)).
