摘要
目的：探讨兔眼玻璃体内鱼刺异物的MRI、CT及超声表现。方法：采用16只新西兰健康大白兔，将其右眼玻璃体内随机植入2根鱼刺异物，异物直径0.15～0.2 mm、长度1.5～3.5 mm，左眼为正常对照，均于术后2 h行MRI、CT及超声检查。结果：MRI检查序列中T1WI检出4枚鱼刺异物，T2WI检出15枚，磁敏感加权（SWI）检出26枚，CT检出32枚，超声检出32枚。检出的异物在T1WI、T2WI、SWI图上呈点状或线状低信号，CT上呈高密度，超声上呈强回声光斑。结论：兔眼玻璃体内鱼刺异物影像学表现具有特征性，综合应用可提高兔眼玻璃体内鱼刺异物的检出率。
Abstract
Objective: To investigate MRI features of fishbones in rabbit vitreous body. Methods: In 16 New Zealand healthy rabbits, fishbones were implanted into the right vitreous body, the size of fishbones were 0.15 to 0.2 mm in diameter and 1.5 to 3.5 mm in length. Take the left vitreous body as the nomal comparison. All cases underwent MRI, CT and ultrasound examination within 2 hours. Results: T1WI, T2WI, and SWI separately detected 4, 15, and 26 fishbones foreign body. The detected fishbones were dot or linear hypointense in T1WI, T2WI and SWI images, high density in CT, and strong echo of the light spots in sonogram. Conclusion: Fishbone foreign body in right vitreous body of rabbit had its characteristics in imaging, synthetic application is helpful to the detection and diagnosis of fishbones in rabbit vitreous body.
关键词
眼异物 /
玻璃体 /
磁共振成像 /
体层摄影术 /
X线计算机 /
超声检查 /
多普勒 /
彩色
Key words
Eye foreign bodies /
Vitreous body /
Magnetic resonance imaging /
Tomography /
X-ray computed /
Ultrasonography /
Doppler /
color
文宝红;程敬亮;高剑波;董雷刚;董 刚;付 超;袁德昌.
兔眼玻璃体内鱼刺异物的影像学研究[J]. 中国临床医学影像杂志. 2013, 24(10): 685-687
WEN Bao-hong;CHENG Jing-liang;GAO Jian-bo;DONG Lei-gang;DONG Gang;FU Chao;YUAN De-chang.
The imaging findings of fishbones in rabbit vitreous body[J]. Journal of China Clinic Medical Imaging. 2013, 24(10): 685-687
中图分类号：
Ｒ779.14
Ｒ776.4
Ｒ445.2
Ｒ814.42
Ｒ445.1
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