Table 1:

Characteristics of the 15 patients who had both pre- and postoperative MRI, including DTI, and 11 healthy controls

	Patients (n = 15)					Healthy Controls (n = 11)
	Mean	SD	Min	Max	Med	Mean	SD	Min	Max	Med
Gestational age (wk)	39	1	37	41	39	39	1	38	41	40
Birth weight (g)	3381	452	2560	3990	3340	3466	417	3000	4160	3500
From birth to 1st MRI (days)	8	6	3	27	8	26	5	15	32	26
From birth to 2nd MRI (days)	29	9	16	52	27
From 1st to 2nd MRI (days)	21	8	11	42	20
From surgery to 2nd MRI (days)	14	6	7	28	12

Note:—Min indicates minimum; Max, maximum; Med, median.