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Imaging at baseline (left) and 2-weeks post-radioembolization (right) after infusion of 94MBq 90Y to the whole liver. At baseline, both lesions enhance on contrast-enhanced (CE) imaging and high R2* values are present within areas of central necrosis in each tumor (1 and 2). After 2 weeks, tumor 1 has enlarged and shows considerable necrosis with peripheral rim enhancement on CE-MRI. Gas challenge resulted in little to no increase in R2* during room air breathing at this time.
