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[Clinical study of pro 16-slice spiral CT perfusion imaging for high myopia]
Zhengqing Wu1, Haijun Zheng, Haijun Zhou
1Department of Ophthalmology, The First People's Hospital of Chenzhou, Chenzhou 423000, China.
Purpose:
To study the hemodynamics of the eye-ring's microcirculation in patients with high myopia through 16-slice spiral CT perfusion image.
Methods:
Twenty-eight patients (53 eyes) with high myopia and 32 cases with emmetropia (64 eyes) in control group were examined by GE lightspeed pro 16-slice spiral CT. The perfusion image and the blood volume (BV) of the posterior equatorial eye-ring were obtained and analyzed by SPSS 10.0 software.
Results:
The BV of high myopia (4.61 +/- 1.48)ml/ 100 g is significantly less than that of the control group (7.72 +/- 1.92)ml/ 100 g (P < 0.01). It implies that the quantity of the small vessel and capillary in the eye-ring of the patient with high myopia is less than that of the control group. The diopter of high myopia has a significantly positive correlation with the BV of the posterior equatorial eye-ring (r = 0.793, P < 0.01).
Conclusion:
The perfusion image of 16-slice spiral CT is a quantitive method to evaluate the hemodynamics of the high myopia eye-ring's microcirculation.
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