Table 3. Intrasession repeatability of vascular metrics obtained using OCTAVA.

Metric (unit)	Mean	MEa	CRb	95% CIc
Vessel area density (%)	38	2	5.5	4.8–6.2
Vessel length density (%)	2.32	0.14	0.38	0.33–0.43
Mean diameter (μm)	54.6	1.4	3.9	3.4–4.4
Median diameter (μm)	56.2	1.8	5	4.4–5.7
Branchpoint density (nodes/mm)	3.2	0.1	0.3	0.3–0.4
Fractal dimension (1) d	1.38	0.01	0.02	0.02–0.02

^aME: Measurement error

^bCR: Coefficient of repeatability

^cCI: Confidence intervals

^dA unit of 1 indicates a dimensionless metric.