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Table 3 Hemodynamic Doppler parameters in the OA, PCA, and CRA of Eyes After Intravenous Chemotherapy for RB

From: Quantitative evaluation of retinal microvasculature and retrobulbar vessels after intravenous chemotherapy for retinoblastoma

Parameter

Group I

Group II

Controls

P value

I vs II

I vs C

II vs C

Central retinal artery

 PSV (cm/s)

11.28 ± 3.52

11.52 ± 3.73

11.72 ± 2.92

0.8840

0.7644

0.8953

 EDV (cm/s)

3.82 ± 1.42

3.52 ± 1.64

3.71 ± 1.84

0.6671

0.8827

0.8102

 RI

0.66 ± 0.07

0.69 ± 0.08

0.68 ± 0.09

0.3839

0.5859

0.7958

 PI

1.12 ± 0.23

1.18 ± 0.21

1.15 ± 0.21

0.5500

0.7642

0.7531

Posterior ciliary artery

 PSV (cm/s)

11.94 ± 3.08

12.21 ± 3.24

12.52 ± 3.43

0.8507

0.6954

0.8377

 EDV (cm/s)

3.67 ± 1.18

3.84 ± 1.64

3.73 ± 1.48

0.7932

0.9213

0.8766

 RI

0.69 ± 0.09

0.69 ± 0.10

0.70 ± 0.10

1.0000

0.8168

0.8256

 PI

1.06 ± 0.23

1.04 ± 0.25

1.04 ± 0.22

0.8544

0.8447

1.0000

Ophthalmic artery

 PSV (cm/s)

29.40 ± 6.63

30.47 ± 5.63

31.47 ± 5.6

0.7018

0.4604

0.6951

 EDV (cm/s)

6.82 ± 2.62

7.11 ± 2.34

6.98 ± 3.12

0.7970

0.9025

0.9172

 RI

0.77 ± 0.08

0.76 ± 0.09

0.78 ± 0.10

0.7958

0.8078

0.6439

 PI

1.25 ± 0.38

1.24 ± 0.40

1.27 ± 0.43

0.9549

0.9135

0.8735

  1. OA Ophthalmic artery, PCA Posterior ciliary artery, CRA Central retinal artery, PSV Peak systolic velocity, EDV End diastolic velocity