CAJ | 학술논문

目的:探讨眼内异物CT定位新方法.方法:筛选26例后极以外眼球壁和视网膜表面粘连异物,予CT"眼球平扫"和"眼球横扫"后,分别行眼球横扫联合子午面重建定位法(新法)、眼球平扫联合眼球横扫定位法(传统方法Ⅰ)和眼球平扫直角坐标定位法(传统方法Ⅱ)定位.以术中间接检眼镜监视下定位或术中直接看到的异物位置为验证标准,分别测量依据以上3种CT定位数据确立的异物球表定点位置的经、纬向误差.结果:26例异物球表定点位置的经、纬向平均误差分别为1.53mm、1.64mm(新法),1.37mm、1.64mm(传统方法Ⅰ)和2.02mm、2.55mm(传统方法Ⅱ).经配对t检验,新法较传统方法Ⅰ差异无统计意义(经向:P＞0.6,纬向:P=1);新法较传统方法Ⅱ差异有统计意义(经向:P＜0.05,纬向:P＜0.01).结论:新法较传统方法更简便、更直观、更富发展前景.
목적:탐토안내이물CT정위신방법.방법:사선26례후겁이외안구벽화시망막표면점련이물,여CT"안구평소"화"안구횡소"후,분별행안구횡소연합자오면중건정위법(신법)、안구평소연합안구횡소정위법(전통방법Ⅰ)화안구평소직각좌표정위법(전통방법Ⅱ)정위.이술중간접검안경감시하정위혹술중직접간도적이물위치위험증표준,분별측량의거이상3충CT정위수거학립적이물구표정점위치적경、위향오차.결과:26례이물구표정점위치적경、위향평균오차분별위1.53mm、1.64mm(신법),1.37mm、1.64mm(전통방법Ⅰ)화2.02mm、2.55mm(전통방법Ⅱ).경배대t검험,신법교전통방법Ⅰ차이무통계의의(경향:P＞0.6,위향:P=1);신법교전통방법Ⅱ차이유통계의의(경향:P＜0.05,위향:P＜0.01).결론:신법교전통방법경간편、경직관、경부발전전경.
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.