A Study to Assess Ocular Blood Flow by Colour Doppler Ultrasonography in Patients of Diabetic Retinopathy
Journal Title: International Journal of Medical Research Professionals - Year 2017, Vol 3, Issue 3
Abstract
Introduction: Diabetes mellitus is on the increase and emerging as a major public health problem. The literature shows that there is an inverse correlation between the severity of diabetic retinopathy and blood flow velocity in ocular arteries. Resistive index is also significantly higher in diabetics with or without retinopathy than in normal subjects. The present study has been undertaken for measuring blood flow velocities in ophthalmic artery and central retinal artery in diabetic subjects. Method: This study was conducted on 60 diabetic eyes and 20 non diabetic controls eyes. The values of blood flow velocity (cm/sec) obtain by colour Doppler imaging. Resistive Index (systolic velocity – diastolic velocity / systolic velocity) was calculated for ophthalmic and central retinal artery. Results: In comparison from control group to Preproliferative & Proliferative Diabetic Retinopathy group in Ophthalmic Artery mean systolic & diastolic velocity decrease from 50.08 to 40.19 cm/sec (P value 0.04) & 19.86 to 10.31 cm/sec (P value 0.00) respectively. RI increase from 0.61 to 0.72 (P value 0.00). In Central Retinal Artery mean systolic & diastolic velocity decrease from 24.06 to 16.51 cm/sec (P value 0.00) & 8.12 to 4.56 cm/sec (P value 0.00) respectively. Resistive Index increase 0.64 to 0.69 (P value 0.25). Conclusion: Ocular blood flow decrease with progression of diabetic retinopathy. Colour Doppler Imaging may become a valuable method to assess ocular blood flow in diabetic retinopathy and other ocular vascular disorders. This technique may be used when standard diagnostic procedures impossible because of hazy media.
Authors and Affiliations
Ashok Kumar Meena, Neeraj Kumar Agarwal, Jaishree Singh, Manju Gajraj
Keywords
Related Articles
- EP ID EP548090
- DOI 10.21276/ijmrp.2017.3.3.047
- Views 357
- Downloads 0
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