256层螺旋CT左心耳定量测量的可重复性研究刘晓伟.pdfVIP

· · 中国临床医学影像杂志2014 年第25 卷第2 期 J Chin Clin Med Imaging, 2014, Vol．25, No．2 86 256 层螺旋CT 左心耳定量测量的可重复性研究 刘晓伟，李彩英，于 晨，任向杰，马国景 （河北医科大学第二医院影像科，河北 石家庄 050000 ） [摘要] 目的：评价256 层螺旋CT 对左心耳定量测量的可重复性。 方法：随机选取我院50 例行常规冠脉CTA 扫描患者， 将原始扫描数据行75%期相重建，于工作站对左心耳开口长短径、面积、容积等参数进行测量。 比较各参数在同一观察者不同 时间及不同观察者间测定的可重复性。 结果：同一观察者不同时间测定的各参数结果比较，差别无统计学意义（P0.05 ） ；不同观 察者两次测定的各参数结果进行比较，差别亦无统计学意义（P0.05 ）。 结论：利用Philips 256 MSCT 冠脉成像对左心耳进行定 量测量有较高的可重复性和一致性，可以为临床房颤射频消融术及左心耳封堵术提供重要参考。 [关键词] 心脏功能试验；心耳；体层摄影术，螺旋计算机 中图分类号 ； 文献标识码 文章编号 （ ） [ ] R331.31 R814.42 [ ] A [ ] 1008－1062 2014 02－0086－04 Reproducibility of the quantitative measurements of the left atrial appendage using 256-slice spiral CT LIU Xiao-wei, LI Cai-ying, YU Chen, REN Xiang-jie, MA Guo-jing (Department of Radiology, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, China) Abstract: Objective: To assess the reproducibility of the quantitative measurement of left atrial appendage (LAA) using 256-slice spiral CT. Methods: In the population of patients referred to our hospital for 256 MSCT coronary angiography, 50 individuals were randomly selected. The images from 75% of the cardiac cycle were reconstructed and then sent to the work- station for measuements of the longitudinal and transverse diameters of LAA orifice, the area of LAA orifice, LAA volume, et al. Inter-observer and intra-observer reproducibility were evaluated. Results: There was no significant difference between the results from two different observers or between the results at different time points for the same observer (P＞0.05). Conclusion: Philips 256 MSCT coronary angiography shows high reproducibility a