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将１０枚生物组织异物（巩膜、角膜、结膜、横纹肌和脂肪各２枚）分别置入５只兔的１０只眼玻璃体内，并与眼内积气、出血和青枝柳条对照，探索眼内生物组织异物的ＣＴ和ＭＲＩ表现。ＣＴ和ＭＲＩ在置入异物后２ｈ内完成。结果：巩膜、角膜、结膜和横纹肌ＣＴ图像上密度高于玻璃体，ＣＴ值４７～５２．５Ｈｕ。Ｔ１ＷＩ呈略高信号，Ｔ２ＷＩ和Ｆｌａｓｈ２ｄ序列呈低信号；脂肪呈脂肪性低密度，Ｔ１ＷＩ和ＰＤＷＩ呈明显高信号，Ｔ２ＷＩ和Ｆｌａｓｈ２ｄ序列呈相对低信号；８枚中４枚小于１．５ｍｍ×１ｍｍ×０．８ｍｍ的巩膜、角膜、结膜和横纹肌ＣＴ漏检；Ｔ１ＷＩ检出５枚，ＰＤＷＩ未显示１枚，Ｆｌａｓｈ２ｄ和Ｔ２ＷＩ全部检出。结果提示：ＭＲＩ检出眼内巩膜、角膜、结膜和横纹肌优于ＣＴ，ＳＥ序列、Ｔ２ＷＩ和Ｆｌａｓｈ２ｄ序列是检出这些组织的优选序列，但ＣＴ和ＭＲＩ不能分辨其组织类别，并且难与新鲜木异物区别；ＣＴ和ＭＲＩ联合应用能确定眼内脂肪性异物的性质，且能有效与眼内干木异物、积气和出血鉴别
Ten biological tissue foreign bodies (sclera, cornea, conjunctiva, rhabdomyolus and fat each) were placed into the vitreous of 10 eyes of 5 rabbits respectively, and compared with the intraocular airway, hemorrhage and green shoots, to explore the intraocular CT and MRI appearances of biological tissue foreign bodies. CT and MRI in the foreign body within 2h after the completion. Results: The CT images of sclera, cornea, conjunctiva and striated muscle were higher than that of the vitreous with CT value 47 ~ 52.5Hu. T2WI and Flash2d sequences showed low signal intensity; fat was low density, T1WI and PDWI showed a high signal, T2WI and Flash2d sequences were relatively low signal; 8 of 4 less than 1.5mm × 1mm × 0.8mm sclera, cornea, conjunctiva and striated muscle CT missed; T1WI detected 5, PDWI did not show a, Flash2d and T2WI were detected. The results suggest that the detection of intraocular sclera, cornea, conjunctiva and striated muscle by MRI is better than that of CT, SE, T2WI and Flash2d sequences are the preferred sequences for detecting these tissues. However, CT and MRI can not distinguish their tissue types, Foreign body difference; CT and MRI can determine the properties of intraocular fatty foreign body, and can effectively differentiate intraocular dry wood foreign body, gas and bleeding