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Insights into Imaging
Fig. 10 | Insights into Imaging

Fig. 10

From: Multiparametric MRI: practical approach and pictorial review of a useful tool in the evaluation of brain tumours and tumour-like lesions

Fig. 10

Brain metastasis—treatment effect. Melanoma metastasis. a Enhancing lesion in the right basal ganglion on axial T1 post-contrast MRI. b, c Post-SRS T2W and post-contrast T1W images shows increase in lesion size and oedema. Multiparametric MRI demonstrates: (d) an intermediate rCBV ratio (< 2.1) on PWI, (e) a high ADC (1159 × 10−6 mm2 s−1) and (f) low Cho/Cr ratio (1.6) and very high lipids (arrow) suggesting necrosis. g Three-month follow-up post-contrast T1W scan showed regression of the lesion

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