颈部动脉DE-CTA不同去骨模式的成像差异

摘要

目的：探讨颈部动脉DE-CTA后处理过程中body bone removal、head bone removal两种去骨模式自动去骨效果的差异。方法选取2014年8～10月在我院行颈部动脉DE-CTA患者66例，所有检查数据均分别采用两种模式后处理，应用秩和检验比较两种自动去骨技术的效果差异。结果 body bone removal模式显示颈部动脉429支，其中完整显示8支颈部动脉43例；head bone removal模式显示颈部动脉524支，其中完整显示8支颈部动脉63例；两种后处理模式在显示颈部动脉时有显著差异（ P ＜0．001）。结论 head bone removal模式颈部动脉自动去骨成像效果优于body bone remov-al模式。%Objective To investigate the head bone removal technique effect of dual-energy computed tomography angiography ( DE-CTA) of the neck in comparison with body bone removal technique.Methods Sixty-six subjects underwent carotid DE-CTA in our hospital from August 1, 2014 to October 31, 2014.Their datasets were post-processed by head bone removal tech-nique and body bone removal technique, respectively.The Rank-sum test was used to compare the effect of difference between the two automatic bone removal techniques.Results Four hundred and twenty-nine arterial branches of the neck were demonstrated by body bone removal mode, and all 8 arterial branches of the neck were revealed in 43 cases.Five hundred and twenty-four arte-rial branches were displayed by head bone removal mode, and all 8 arterial branches were seen in 63 cases.There was a signifi-cant difference between the two groups ( P <0.001).Conclusion Head bone removal mode is superior to body bone removal mode in DE-CTA of the neck.