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. 2018 Apr;59(4):603–609. doi: 10.2967/jnumed.117.196709

TABLE 3.

Pearson Correlation Coefficients

			Untreated			Treated
Feature A	Feature B	Total	WHO II	WHO III	WHO IV	WHO II–IV
¹⁸F-FET SD/avg intensity	Cho/NAA SD/avg intensity	0.15	0.36	0.38	0.13	−0.19
¹⁸F-FET SD	Cho/NAA SD	0.27	0.52	0.65^*	−0.28	0.03
¹⁸F-FET avg intensity	Cho/NAA avg intensity	0.40^*	0.66	0.72^†	−0.45	0.20
Dice coefficient	Distance between centers of mass	−0.63^†	−0.47	−0.59^*	−0.94^†	−0.56
Dice coefficient	Volume (¹⁸F-FET)	0.58^†	0.78^*	0.66^*	0.61	0.44
Dice coefficient	Volume (Cho/NAA)	0.44^†	0.69	0.37	0.91^†	0.54
Dice coefficient	Volume (Cho/NAA)/volume (FET)	−0.37^*	−0.64	−0.49	0.65	−0.32
Volume (¹⁸F-FET)	Volume (Cho/NAA)	0.77^†	0.79^*	0.68^*	0.57	0.93^†

^*

P < 0.05.

^†

P < 0.005.

Total results include the 2 cases without biopsy.

avg = average.