Skip to main content

Table 3 Major published of repeatability evaluation of RFI in normal subject

From: The inter-visit variability of retinal blood flow velocity measurements using retinal function imager (RFI)

Authors Design N FOV Characteristics Effect Repeatability
Mean ± SD
Chhablani et al. 2013 [18] Comparing different sessions of the same eye in the same visit 15 35 BFV of arterioles(mm/s) 3.16 CCC: 0.97
BFV of venules(mm/s) 3.15 CV: 10.9%
No. of the segments of arterioles 5.4
No. of the segments of venules 6.1
Burgansky-Eliash et al. 2012 [19] Intra-visit variability Inter-visit variability on different days 20 20 BFV of arterioles(mm/s) 4.2 ± 0.9 Intra-visit CV: 7.5% ± 3.7%
Inter-visit ICC variability: 0.74
5 BFV of venules(mm/s) 3.3 ± 0.8
  No. of the segments of arterioles 16 ± 6
    No. of the segments of venules 16 ± 5
  1. BFV = blood flow velocity; FOV = field of view; CCC = concordance correlation coefficient; CV = coefficient of variance; ICC = interclass correlation coefficient