128排256层螺旋CT血管成像诊断颅内动脉瘤的价值研究

128 row 256 slice spiral CT angiography in the diagnosis of intracranial aneurysm: a research of the values

目的评价128排256层螺旋CT血管成像(CTA)在诊断颅内动脉瘤方面的价值。方法对50例临床怀疑为颅内动脉瘤的患者依次行128排256层CTA和数字减影血管造影(DSA)检查,以DSA诊断结果作为参照标准,计算128排256层CTA对颅内动脉瘤的诊断灵敏度、特异度、准确率,并对比两种技术检测颅内动脉瘤瘤体最大径、瘤体最小径、瘤颈宽度的差异。结果50例怀疑为颅内动脉瘤的患者,DSA检出颅内动脉瘤者45例52个瘤体,128排256层CTA检出43例50个瘤体。128排256层CTA诊断颅内动脉瘤的灵敏度、特异度和准确率分别为95.6%、100.0%、96.0%。CTA与DSA测定颅内动脉瘤瘤体最小径、最大径及瘤颈宽度差异无统计学意义(均P>0.05)。结论128排256层CTA对颅内动脉瘤有较高的诊断准确率,可作为DSA检查的补充诊断方法。

Objective To evaluate the values of 128 row 256 slice spiral CT angiography(CTA)in the diagnosis of intracranial aneurysm.Methods Detections of 128 row 256 slice CTA and digital subtraction angiography(DSA)were conducted in sequence to 50 patients suspected with intracranial aneurysm in clinic.The result of DSA diagnosis was used as the reference standard to calculate 128 row 256 slice CTA on the diagnostic sensitivity,specificity and accuracy rate of intracranial aneurysm;moreover,the differences in detecting maximum and minimum diameters of the tumors,tumor neck width of intracranial aneurysm were compared between the two techniques mentioned above.Results A total of 50 patients were suspected with intracranial aneurysm,among which 52 tumors from 45 patients with intracranial aneurysm were detected by DSA,whereas 50 tumors from 43 patients were detected by 128 row 256 slice CTA.The sensitivity,specificity and accuracy rate of 128 row 256 slice CTA in diagnosing intracranial aneurysm were 95.6%,100.0%,and 96.0%,respectively.There were no statistically significant differences in minimum and maximum diameters of tumors,and tumor neck width between CTA and DSA in detecting intracranial aneurysm(all P>0.05).Conclusion 128 row 256 slice CTA has a relatively high accuracy rate of diagnosing intracranial aneurysm,which can be used as supplementary diagnostic method for DSA detection.