The application of iohexol CT cisternography in the detection of cerebrospinal fluid rhinorrhea

VernacularTitle:碘海醇CT脑池造影在脑脊液鼻漏定位中的应用
Author: Jiqiang WANG ; Heqian ZHAO ; Ming SONG ; Qingzhe YANG ; Bin WU
Publication Type:Journal Article
Keywords: Iohexol; Cerebrospinal fluid rhinorrhea; Cisternography
From: Chinese Journal of Postgraduates of Medicine 2015;38(1):17-19
CountryChina
Language:Chinese
Abstract: Objective To explore how to improve the sensitivity and specificity of CT cisternography (CTC) examination.Methods The clinical data of 20 cases of CTC in detecting cerebrospinal fluid rhinorrhea were analyzed,and the influence of continuous dripping of fluid and the filling time of subarachnoid space upon the image quality were observed.Results Nineteen cases of active cerebrospinal fluid rhinorrhea were found with CTC,and the fistula sites were determined by CTC.Eighteen cases received operation which confirmed the fistula sites.One case was found with no active fistula site.According to the image of ethmoid sinus leaks results,7 cases had better image quality in 9 cases whose subarachnoid space filling time was longer than or equal to 10 min.One case had better image quality in 6 cases whose subarachnoid space filling time was shorter than 10 min.There was significant difference (P =0.0406).Conclusion To raise the positive rate of CTC,the position of active fistula should be maintained and keep the time between the injection and scan longer than or equal to 10 min,which help to get better image quality.