Percentage signal recovery plus relative cerebral blood volume: a practical dual-parameter strategy for differentiating post-stereotactic radiosurgery tumour progression from radiation necrosis in brain metastases.

Insights Imaging · 2026 · PMC13194838 · PMID 42166098

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0.1400

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did not reach statistical significancep = 0.14not close (p > 0.1)

In multivariate analysis, PSR remained an independent and statistically significant predictor (OR = 0.94, p = 0.04), while the association of rCBV with tumour progression did not reach statistical significance (OR = 2.66, p = 0.14).

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