Objective To make a further understanding of the CT features of intraorbital meningioma,and to improve the level of CT diagnosis. Methods The imaging data of CT and clinical information of 17 cases with operatively and pathologically proved intraorbital meningioma(primary or secondary) from October 1997 to October 2006 in our hospital were retrospectively analysed.Results There were 11 optic nerve sheath meningiomas,4 orbital bone meningiomas and 2 sphenoid ridge meningiomas.On contrast-enhanced CT scan,most of the cases displayed an even enhancement.The "orbit sign""sleeve sign" and the hyperostosis of orbital bone were characteristic features of intraorbital meningioma.Conclusion CT examination plays an important role in diagnosing intraorbital meningioma.

Objective To compare of intervention embolization and operation in the treatment of brain aneurysms.Methods 60 cerebral aneurysm patients using random number table method were divided into two groups each 30 cases,group A given intervention embolization;group B given surgical operation treatment.They were followed for 3months,the bleed Glasgow results score,matrix metalloproteinases 2(MMP-2) level change and the length of time were recorded.Results After treatment,A group total effective rate was 73.4％,postoperative treatment to bleed again rate was 10.0％ (3/30),B group was 76.7％,6.7％ (2/30),two groups had no statistically significant differences (x2 =0.09,0.22,all P ＞ 0.05 ) before treatment M MP-2 level between ;The two groups was statistically significant ( t =1.21,P ＞ 0.05 ) ;Two groups after surgical treatment 3 d MMP-2 levels were ( 20.1 ± 8.7 ) μg/L,( 35.7 ±8.9 ) μg/L respectively,which was statistically significant ( t =3.33,P ＜ 0.05 ).A group of hospitalization time (8.6 ±1.5 ) d,group B ( 13.2 ± 1.3 ) d,the difference between two groups was statistically significant ( t =3.18,P ＜ 0.05 ).Conclusion For brain aneurysm patients,the intervention embolization had no obvious difference in curative effect with operation,but could reduce the time in hospital and significantly reduced MMP-2 level.