[Clinical study of pro 16-slice spiral CT perfusion imaging for high myopia].
OBJECTIVE
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).


CONCLUSIONS
The perfusion image of 16-slice spiral CT is a quantitive method to evaluate the hemodynamics of the high myopia eye-ring's microcirculation.
Department of Ophthalmology, The First People's Hospital of Chenzhou, Chenzhou 423000, China.
Zhengqing
Z
Wu
Haijun
H
Zheng
Haijun
H
Zhou
Guoqiao
G
Li
Fang
F
He
Yanli
Y
Zhang
Fang
F
Wu
Shuyang
S
Chen
D000293:Adolescent; D000328:Adult; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009216:Myopia / Q000000981:diagnostic imaging*; D055420:Perfusion Imaging; D036542:Tomography, Spiral Computed / Q000379:methods*; D055815:Young Adult