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将３９枚非磁性异物（金属异物１１枚，非金属异物２８枚，其大小介于１．５ｍｍ×１ｍｍ×０．５ｍｍ～９ｍｍ×４．２ｍｍ×４．２ｍｍ）置入２２只兔眼球壁行ＣＴ和ＭＲＩ检查，评价ＣＴ和ＭＲＩ对眼球壁异物的诊断价值。结果：ＳＥ序列Ｔ１ＷＩ、ＰＤＷＩ、Ｔ２ＷＩ、Ｆｌａｓｈ２ｄ序列和ＣＴ对３９枚眼球壁异物的检出阳性率分别为３９％、７７％、８２％、９７％和８０％。ＣＴ漏检的８枚异物分别是２枚干木块、２枚青枝柳条和４枚塑料，ＭＲＩ则全部显示；Ｆｌａｓｈ２ｄ漏检的１枚铅异物（２ｍｍ×１ｍｍ×１ｍｍ），经ＣＴ确定。结果提示：ＣＴ和ＭＲＩ均能有效地检出眼球壁异物，二者联合应用将提高眼球壁异物的检出率；ＭＲＩＦｌａｓｈ２ｄ序列是检出眼球壁异物的最佳序列
Thirty-nine non-magnetic foreign bodies (11 metal foreign bodies, 28 non-metallic foreign bodies, and their sizes ranging from 1.5 mm × 1 mm × 0.5 mm to 9 mm × 4.2 mm × 4.2 mm) CT and MRI examination, evaluation of CT and MRI on the diagnosis of foreign body ball wall value. Results: The positive rates of SE sequence T1WI, PDWI, T2WI, Flash2d sequence and CT were 39%, 77%, 82%, 97% and 80% respectively. The 8 foreign objects missed by CT were 2 pieces of dry wood, 2 pieces of green wicker and 4 pieces of plastic respectively, all of which were displayed by MRI. One lead foreign body (2mm × 1mm × 1mm) missed by Flash2d was confirmed by CT. The results suggest that both CT and MRI can effectively detect the foreign bodies in the wall of the eyeball, and the combination of the two can improve the detection rate of foreign bodies in the wall of the eyeball. MRIFlash2d sequence is the best sequence for detection of foreign bodies in the wall of the eyeball