双源CT双能量自动减影去骨技术在颈动脉造影中的临床应用

The study on dual source CT dual-energy automatic bone removal technique in carotid artery angiography

目的 评价双源CT双能量自动减影去骨去钙化技术在颈动脉造影中的临床应用价值.方法 回顾性分析自2012年11月～2014年2月在本院就诊应用双源CT双能量颈动脉血管成像检查的患者126例,分析全部患者颈动脉双源CT双能量自动去骨去钙化技术对颈动脉的显示,并评价图像质量.其中阳性结果患者中有27例患者接受了头颈部血管造影（DSA）检查,并以DSA图像为金标准对照,评价双源CT双能量自动减影去骨去钙化技术诊断颈动脉狭窄与DSA对照的统计学意义.结果 126例患者颈动脉双能量自动去骨后,对颈总动脉（CCA）血管满意显示率为71.0％,颈内动脉颅外段（ICA-E）血管显示满意率为96.0％,颈内动脉颅内段（ICA-I）血管满意显示率为74.2％,ICA-E血管满意显示率最高,与CCA及ICA-I相比有统计学意义（P＜0.05）,全部血管总满意显示率为80.4％.27例阳性患者颈动脉双能量自动去骨后与DSA对照,狭窄吻合率一致性很高（P＞0.05）,尤其重度及闭塞吻合率达到95％以上.结论 双源CT双能量自动去骨去钙化技术在颈动脉成像中的应用是一种快速、有效、无创的检查新手段,获得的图像质量好,尤其在ICA-E段血管的显示几乎可以替代DSA检查.

Objective To explore the clinical application value of dual source CT dual-energy automatic bone removal technique in carotid artery angiography. Methods The imaging data of 126 patients who underwent dual source CT dual- energy carotid angiography examination from November 2012 to February 2014 in our hospital were retrospectively ana- lyzed. Results The carotid CTA of all 126 patients acquired from dual source CT dual-energy automatic bone removal technique were analysed and evaluated. In patients with positive result of carotid CTA, 27 cases accepted cerebral digital subtraction angiography （DSA） examination. Through compared with cerebral angiography （the gold standard）, To ex- plore the value of the dual source CT dual-energy automatic bone removal technique in diagnosing carotid stenosis. Conclu- sion Dual source CT dual-energy automatic bone removal technique is a rapid, effective and noninvasive examination method in the application of carotid artery angiography. It can get high quality images and almost replace DSA when exam- ine ICA-E.