Table 3:

Results of the analysis of ISSON width in 19 patients with CSH^a,b

Patient No.	ISSON Width								ISSON Width (Gross Visual Inspection)
	Position 1		Position 2		Position 3		Position 4
	–/N	MM	–/N	MM	–/N	MM	–/N	MM	–/N
1	N	1.1	–	0	–	0	–	0	–
2	–	N.A.	–	0.6	–	0.6	–	0.7	–
3	N	1.2	N	1.1	–	0.7	–	0.8	–
4	–	0	–	0	–	0	–	0	–
5	–	0	–	0	–	0	–	0	–
6	–	0	–	0	–	0	–	0	–
7	–	0	–	0	–	0	–	0	–
8	–	0	–	0	–	0	–	0	–
9	N	1.6	N	0.9	–	0.7	–	0	–
10	N	1.2	–	0.6	–	0.7	–	0	–
11	–	0.8	–	0	–	0	–	0.8	–
12	N	1.1	–	0	–	0	–	0	–
13	–	0	–	0	–	0	–	0	–
14	N	1.2	–	0	–	0	–	0	–
15	–	0.8	–	0	–	0	–	0	–
16	–	0.7	–	0	–	0	–	0	–
17	–	0	–	0	–	0	–	0	–
18	N	1.4	N	1.2	–	0.7	–	0	–
19	–	0	–	0	–	0	–	0	–
Mean	0.6		0.2		0.2		0.1
SD	0.6		0.4		0.3		0.3
Sensitivity	61%		84%		100%		100%		100%
CI (95%)	36%–83%		60%–97%		85%–100%		85%–100%		85%–100%
ICCc	0.908		0.859		0.862		0.824
κc									1

^a Measurements were obtained in 4 intraorbital positions approximately 3, 6, 10, and 20 mm behind the eyeball. Specificity was 97% each.

^b –indicates decreased (<1.0 mm, [position 1]; <0.9 mm, [positions 2–4]). Regarding gross visual inspection,–corresponds to a reduction or absence of CSF in the ISSON.

^c ICC and κ values were computed for results of 3 readers.