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Table 2: Comparison of perfusion parameters for lesions diagnosed as tumor recurrence versus radiation necrosis
  Radiation Necrosis Tumor Recurrence
  No. Median 95% CI No. Median 95% CI P Value
CBF_ASL (mL/100 g/min) 13 24.1 17.8–38.3 19 36.0 33.9–62.2 .003^{^a}
rCBV 13 1.81 1.55–3.18 19 3.69 2.02–5.03 .058
Corrected rCBV 13 1.24 0.83–2.89 19 2.50 1.60–3.15 .048
K^trans_SI (min⁻¹) 13 0.013 0.0062–0.039 19 0.019 0.011–0.048 .28
Vp_SI 13 0.16 0.12–0.29 19 0.27 0.21–0.39 .063
K^trans_MOLLI (min⁻¹) 11 0.052 0.024–0.094 14 0.055 0.047–0.11 .44
Vp_MOLLI 11 0.17 0.13–0.28 14 0.28 0.20–0.41 .012
K^trans_SMART (min⁻¹) 11 0.042 0.020–0.075 14 0.046 0.037–0.071 .48
Vp_SMART 11 0.12 0.082–0.23 14 0.21 0.15–0.33 .080
↵a Significance following Holm Bonferroni correction.

	Radiation Necrosis			Tumor Recurrence
	No.	Median	95% CI	No.	Median	95% CI	P Value
CBF_ASL (mL/100 g/min)	13	24.1	17.8–38.3	19	36.0	33.9–62.2	.003^{^a}
rCBV	13	1.81	1.55–3.18	19	3.69	2.02–5.03	.058
Corrected rCBV	13	1.24	0.83–2.89	19	2.50	1.60–3.15	.048
K^trans_SI (min⁻¹)	13	0.013	0.0062–0.039	19	0.019	0.011–0.048	.28
Vp_SI	13	0.16	0.12–0.29	19	0.27	0.21–0.39	.063
K^trans_MOLLI (min⁻¹)	11	0.052	0.024–0.094	14	0.055	0.047–0.11	.44
Vp_MOLLI	11	0.17	0.13–0.28	14	0.28	0.20–0.41	.012
K^trans_SMART (min⁻¹)	11	0.042	0.020–0.075	14	0.046	0.037–0.071	.48
Vp_SMART	11	0.12	0.082–0.23	14	0.21	0.15–0.33	.080