Although the median nrCBF and rCBF were lower in the postbiopsy group and the rCBF approached significance, the difference between the two groups was not statistically significant [prebiopsy group: median 0.948 (range, 0.426 to 2.269) versus postbiopsy group, 0.811 (0.507 to 1.186), P = .82].
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Perfusion and diffusion-weighted imaging parameters: Comparison between pre- and postbiopsy MRI for high-grade glioma.
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