TABLE 1.

False positive and false negative count pre- and post-visual inspection.

	Pre-visual inspection		Post-visual inspection
	False negative clusters	False positive clusters	False negative clusters	False positive clusters
Subject 1 BL	16	1	16	1
Subject 1 FU	48	3	47	3
Subject 2 BL	0	0	0	0
Subject 2 FU	1	18	4	3
Subject 4 BL	6	23	6	23
Subject 4 FU	8	12	8	12
Subject 5 BL	13	1	13	1
Subject 5 FU	9	0	9	0
Subject 6 BL	10	17	10	17
Subject 6 FU	13	5	18	1
Subject 7 BL	1	46	1	41
Subject 7 FU	4	2	4	1
Subject 8 BL	2	24	2	21
Subject 8 FU	5	34	5	34
Subject 10 BL	5	5	5	3
Subject 10 FU	5	0	5	0
Subject 11 BL	2	40	2	31
Subject 11 FU	6	121	6	80
Subject 12 BL	8	1	8	1
Subject 12 FU	15	81	15	68

The number of false negative and false positive PVS clusters are displayed for each subject with single slice manual segmentations at baseline and at follow-up. PVS, perivascular space; BL, baseline, FU, follow-up.