基于CT动态血管成像的主动脉夹层新分型的临床应用  

Clinical application of a new classification of aortic dissection based on CT dynamic angiography

作　　者：肖喜刚[1] 朱凯[1] 谢德轩[1] 贾玉琳[1] 

机构地区：[1]哈尔滨医科大学附属第一医院CT室,黑龙江哈尔滨150001

出　　处：《哈尔滨医科大学学报》2017年第2期172-175,共4页Journal of Harbin Medical University

基　　金：黑龙江省自然科学基金资助项目(H201343)

摘　　要：目的运用回顾性心电门控技术,通过观察主动脉夹层患者的主动脉真、假腔的运动情况,对主动脉夹层患者进行更为全面的影像学评价。方法回顾性分析29名主动脉夹层患者,行胸腹主动脉回顾性心电门控CT血管成像检查,测量不同层面的真、假腔面积,计算管腔最大面积与最小面积的比值,以120%为临界值,真腔最大面积与最小面积比值≤120%者定义为静止型,真腔最大面积与最小面积比值>120%者定义为波动型。结果 29例主动脉夹层患者中有11例为波动型,18例静止型。在Stanford A型和B型患者中,波动型和静止型所占的比例无统计学差异(P>0.05)。结论 256螺旋CT回顾性心电门控技术可根据主动脉夹层真腔变化情况将主动脉夹层患者分为"波动型"和"静止型",这种新的分型,可以作为Stanford分型的补充,二者联合应用可能会有更高的临床应用价值。Objective To investigate the use of retrospective ECG gating technique in providing a more comprehensive evaluation of aortic dissection （AD） , by observing the true and false motion of the aortic dissection. Methods Twenty-nine patients with aortic dissection were performed by retrospective ECG gated thoracoabdominal aorta CT angiography. Measurement of true and false lumens area in different levels were performed, then ratio of the maximum area of the lumen and the smallest area were calculated, the ratio of 120% was used to distinguish the static type from the pulating type, static type was defined if the ratio ≤ 120%, pulating type was defined if the ratio 〉 120%. Results In 29 patients with aortic dissection, ll cases were pulating type and 18 cases were static type. In Stanford type A and type B groups, the proportion of pulating type and static type was not statistically significant （P 〉 0. 05 ）. Conclusion AD patients could be divided into ＂pulating type＂ and ＂static type＂ according to the changes of true and false lumen. The new typing can be used as a complement to the stanford classification, and the combination may have ahigher clinical value.

关 键 词：体层摄影术 X线计算机 主动脉夹层 血管造影 心电门控技术 

分 类 号：R814.42[医药卫生—影像医学与核医学] R543.1[医药卫生—放射医学]