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| 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 |
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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 workstation 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 and agreement in measuring the LAA parameters, which can provide important reference for clinical ablative treatments and the elimination of the LAA.
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Received: 31 July 2013
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Corresponding Authors:
LI Cai-ying
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2014, Vol. 25 
