Localization of intraocular foreign bodies by the combination of CT ocular axial scan and meridian plane reconstruction
- VernacularTitle:眼内异物CT眼球横扫联合子午面重建定位法
- Author:
Jiu-Min, YUAN
;
Liang-Zhu, JIANG
;
Zheng-Hua, TANG
;
Shan-Ping, LIU
- Publication Type:Journal Article
- Keywords:
intraocular foreign bodies;
localization;
tomography;
compute-aided X-ray
- From:
International Eye Science
2006;6(3):543-545
- CountryChina
- Language:Chinese
-
Abstract:
AIM: To explore a new compute tomography (CT) for the localization of intraocular foreign bodies (IOFBs).METHODS: After CT ocular horizontal and ocular axial scan,the foreign bodies on the eyeball wall or retinal surface in 26eyes were localized by means of the combination of CT ocular axial scan and meridian plane reconstruction (new method),ocular horizontal scan and ocular axial scan (conventional method Ⅰ) as well as ocular horizontal scan right angle coordination (conventional method Ⅱ) separately. According to the criteria of indirect ophthalmoscope localization and direct observation during operation, the relative accuracies of corresponding points of the foreign bodies on sclera surface along meridian and latitude were measured.RESULTS: In the 26 cases, the mean relative accuracies of corresponding points of foreign bodies on sclera surface along meridian and latitude were 1.53mm、1.64mm (new method), 1.37mm、1.64mm (conventional method Ⅰ) and 2.02mm、2.55mm (conventional method Ⅱ) respectively.There was no statistical difference between the new method and the conventional method Ⅰ, whereas there was statistical difference between the new methods and the conventional method Ⅱ (along meridian: P＜0.05; along latitude:P＜0.01).CONCLUSION: Compared with the conventional methods,the new method is simpler, more visible and more potential in the clinic.
