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

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

Parameter	Group I	Group II	Controls	P value
Parameter	Group I	Group II	Controls	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

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

ISSN: 1471-2415