TABLE 1.

A table showcasing demographic and scan duration information all infants that were included in the final analysis.

Subject ID	Gestational age (weeks)	Postnatal age (h)	Sex	Head size (mm)	Total scan duration (s)	Post‐segmentation scan duration (s)	Scan remainder proportion (%)
1	40	21.5	Male		543.32	252.84	47
2	38.71	26	Female		603.59	461.24	76
3	39.14	8.5	Female		485.82	475.69	98
4	38.71	40.5	Female	360	900.86	566.43	63
5	40.14	18	Female	335	517.87	347.90	67
6	40.86	12	Male	355	723.91	423.59	59
7	38.14	9	Female	350	716.44	191.69	27
12	40	7	Female	355	390.46	311.43	80
13	40.43	21	Male	380	680.26	531.92	78
14	40.86	10	Male	355	378.27	338.85	90
15	36.43	7	Male	350	497.61	172.82	35
16	39.71	46	Female	335	577.63	159.94	28
18	40	21.5	Female	355	441.19	411.99	93
19	38.43	22	Male	340	617.55	326.57	53
24	40.14	13	Male	370	493.88	390.66	79
25	40.57	15.5	Male	350	484.93	364.71	75
27	39	24	Male	350	387.91	328.73	85
31	36.14	20	Female	345	460.95	154.83	34
33	38.86	32	Male	315	622.17	373.65	60
35	36.86	32	Female	345	435.59	231.31	53
36	41.14	20	Male	345	609.19	520.72	85
37	39	11	Male	365	569.28	214.79	38
38	38.71	22	Male	380	481.89	415.92	86
39	39.71	19.25	Female	350	616.76	454.75	74
40	38.29	19	Male	310	613.81	409.73	67
44	40.71	21	Female	340	695.50	315.65	45
45	38.14	5	Male	340	616.66	151.78	25
47	39	29	Female	350	618.92	573.60	93
48	38.86	33	Female	330	552.86	357.73	65
49	39.71	19	Male	340	722.63	213.91	30
50	39	24	Male	320	662.86	588.64	89
51	38.43	54	Male	360	604.96	381.71	63
52	39.86	23	Male	345	599.95	381.62	64
53	37.57	26	Female	340	603.59	385.16	64
54	36.43	33	Male	330	593.46	351.63	59
56	39	22.5	Male	370	597.88	177.73	30
57			Male	376	601.52	375.42	62
58	37.43	30	Male	340	620.20	445.61	72
59	39.86	21	Male	340	611.94	573.60	94
60	41.29	31	Female	345	636.72	579.40	91
61	38	48	Female	320	619.91	403.83	65

Note: Gestational age was calculated by converting the raw gestational ages (e.g., 38 weeks + 1 day) to a single number (38.1) rounded to the first significant digit. Empty cells represent missing data. To limit motion–related noise in our data, we used segmentation to isolate segments of data that were not contaminated by motion. Post‐segmentation scan duration represents the sum of the duration of all these segments and scan remainder proportion represents the proportion of the total segment length to the total scan time for each infant.