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Table 4 Mean ratio of each parameter in involved eyes with central vein occlusion to their control average

From: Quantitative measurement of vascular density and flow using optical coherence tomography angiography (OCTA) in patients with central retinal vein occlusion: Can OCTA help in distinguishing ischemic from non-ischemic type?

 

Total case

Non Ischemic CRVO

Ischemic CRVO

Mean ± SD

Median (IQR)

Mean ± SD

Median (IQR)

Mean ± SD

Median (IQR)

Flow in superficial capillary network in 3 × 3 mm image

0.8 ± 0.18

0.82 (0.69–0.94)

0.88 ± 0.13

0.93 (0.8–0.96)

0.7 ± 0.18

0.74 (0.65–0.81)

Flow in deep capillary network in 3 × 3 mm image

0.68 ± 0.26

0.75 (0.57–0.87)

0.75 ± 0.21

0.84 (0.65–0.9)

0.57 ± 0.29

0.67 (0.36–0.85)

Flow in choriocapillaris in 3 × 3 mm image

0.59 ± 0.27

0.5 (0.39–0.89)

0.72 ± 0.26

0.8 (0.52–0.94)

0.4 ± 0.17

0.45 (0.32–0.49)

Whole vascular density of superficial capillary network

0.86 ± 0.07

0.86 (0.82–0.91)

0.88 ± 0.08

0.9 (0.83–0.91)

0.84 ± 0.04

0.84 (0.82–0.86)

Foveal vascular density of superficial capillary network

1.21 ± 0.32

1.14 (0.98–1.42)

1.1 ± 0.27

1.02 (0.97–1.23)

1.35 ± 0.35

1.28 (1.14–1.53)

Parafoveal vascular density of superficial capillary network

0.85 ± 0.08

0.84 (0.8–0.91)

0.87 ± 0.09

0.9 (0.82–0.93)

0.81 ± 0.04

0.81 (0.8–0.84)

Parafoveal vascular density of superficial capillary network in temporal area

0.83 ± 0.09

0.85 (0.76–0.9)

0.86 ± 0.11

0.89 (0.82–0.91)

0.79 ± 0.06

0.78 (0.74–0.83)

Parafoveal vascular density of superficial capillary network in superior area

0.84 ± 0.09

0.84 (0.79–0.92)

0.87 ± 0.09

0.9 (0.8–0.95)

0.8 ± 0.06

0.81 (0.75–0.83)

Parafoveal vascular density of superficial capillary network in nasal

0.89 ± 0.07

0.89 (0.83–0.94)

0.89 ± 0.07

0.9 (0.86–0.95)

0.88 ± 0.08

0.87 (0.81–0.91)

Parafoveal vascular density of superficial capillary network in inferior part

0.84 ± 0.11

0.83 (0.76–0.9)

0.86 ± 0.13

0.88 (0.81–0.93)

0.8 ± 0.08

0.79 (0.74–0.81)

Whole vascular density of deep capillary network

0.82 ± 0.07

0.82 (0.77–0.87)

0.85 ± 0.07

0.86 (0.82–0.89)

0.78 ± 0.06

0.79 (0.72–0.81)

Foveal vascular density of deep capillary network

1.18 ± 0.43

1.1 (0.86–1.44)

1.05 ± 0.37

0.99 (0.86–1.11)

1.34 ± 0.47

1.3 (1.12–1.76)

Parafoveal vascular density of deep capillary network

0.81 ± 0.08

0.83 (0.76–0.86)

0.84 ± 0.07

0.84 (0.81–0.88)

0.77 ± 0.07

0.79 (0.7–0.82)

Parafoveal vascular density of deep capillary network in temporal part

0.79 ± 0.1

0.8 (0.74–0.87)

0.81 ± 0.11

0.83 (0.75–0.89)

0.77 ± 0.09

0.78 (0.69–0.84)

Parafoveal vascular density of deep capillary network in superior part

0.8 ± 0.11

0.82 (0.72–0.87)

0.84 ± 0.1

0.85 (0.82–0.92)

0.73 ± 0.08

0.74 (0.69–0.77)

Parafoveal vascular density of deep capillary network in nasal part

0.86 ± 0.1

0.86 (0.8–0.95)

0.89 ± 0.07

0.88 (0.84–0.95)

0.83 ± 0.13

0.82 (0.77–0.91)

Parafoveal vascular density of deep capillary network in inferior part

0.77 ± 0.13

0.8 (0.67–0.86)

0.81 ± 0.13

0.84 (0.76–0.92)

0.72 ± 0.1

0.73 (0.67–0.78)

Flow in superficial capillary network in 8 × 8 mm image

0.86 ± 0.14

0.87 (0.8–0.98)

0.93 ± 0.08

0.9 (0.86–0.99)

0.77 ± 0.16

0.77 (0.71–0.9)

Flow in deep capillary network in 8 × 8 mm image

0.62 ± 0.25

0.64 (0.48–0.76)

0.73 ± 0.17

0.66 (0.6–0.87)

0.47 ± 0.26

0.47 (0.23–0.71)

Flow in choriocapillaris in 8 × 8 mm image

0.63 ± 0.28

0.61 (0.5–0.88)

0.79 ± 0.22

0.87 (0.66–0.95)

0.42 ± 0.22

0.5 (0.23–0.52)

  1. SD standard deviation; CRVO central retinal vein occlusion, Mean represents the mean ratio of each eye compared to the average of control group