关键词: 脑动脉瘤, 彩色多普勒血流显像, CT血管造影, 诊断效能

Abstract: Objective To explore the diagnostic efficacy of CT angiography （CTA） and color Doppler flow imaging （CDFI） in cerebral aneurysm （CA）. Methods 221 patients with suspected CA admitted to our hospital from March 2019 to September 2021 were selected. CTA and CDFI were performed. Three-dimensional digital subtraction angiography （3D-DSA） was used as the gold standard. The results of CTA and CDFI were observed, and the diagnostic efficacy of the two methods were analyzed. The number of tumors detected by CTA and CDFI, the coincidence rate of specific tumor location, the maximum diameter of tumor body and the diameter of tumor neck were compared. Results Among 221 suspected CA patients, 134 cases were positive by 3D-DSA, 122 cases by CDFI, 124 cases by CTA and 140 cases by CTA+CDFI. The sensitivity （97.76%）, accuracy （94.57%） and negative predictive value （96.30%） of CTA+CDFI were higher than those of CDFI （85.07%, 87.33%, 79.80%）, CTA （85.82%, 87.33%, 80.41%） alone （P<0.05）; The miss diagnosis rate of CTA+CDFI （2.24%） was lower than that of CDFI （14.93%） and CTA （14.18%） （P<0.05）; There was no significant difference between CTA+CDFI and 3D-DSA （P>0.05）. Conclusion the diagnostic efficacy of CTA+CDFI in the diagnosis of Ca is significantly higher than that of CTA and CDFI alone, which can improve the rate of tumor detection and the coincidence rate of lesion location, and is conducive to the development of clinical targeted treatment and the improvement of the prognosis of CA patients.

Key words: cerebral aneurysm, color Doppler flow imaging, CT angiography, diagnostic efficiency