Table 8. Mean (μ) width with standard deviations (σ) of vessel segments reported for the two datasets; FOREVERP and UK Biobank.

μ (σ) listed for the following vessel types: normal, central reflex, low contrast/uneven illumination, and an average of all vessel profiles. Additional category of normal and central reflex for UK Biobank only.

Vessel Type	FOREVERP						UK Biobank
	Ground Truth (GT)		QUARTZ		Diff. GT vs. QUARTZ		Ground Truth (GT)		QUARTZ		Diff, GT vs. QUARTZ
	μ	σ	μ	Σ	μ	σ	μ	σ	μ	σ	μ	σ
Normal	16.10	4.50	16.47	4.34	-0.37	1.91	10.46	1.26	10.00	1.60	0.46	0.94
Central reflex	17.45	6.18	18.29	6.06	-0.85	1.44	10.76	1.31	10.06	1.51	0.70	1.01
Low contrast/uneven illumination	15.32	3.10	16.72	2.40	-1.40	2.23	11.29	0.85	10.56	1.89	0.73	1.78
Normal and central reflex	-	-	-	-	-	-	11.09	0.97	10.18	1.23	0.91	0.85
All vessel profiles	16.21	4.73	17.01	4.49	-0.80	1.96	10.87	1.16	10.17	1.54	0.70	1.13