640层容积CT对左室局部室壁运动功能评估的初步研究

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摘要目的：探讨640层容积CT在评估左室局部室壁运动功能方面的价值。方法：选取2012年9月至2013年1月间因拟诊冠心病而在我院行640层容积CT及心超检查的患者62例，利用CT心功能软件对62例患者左心室共1 054个节段进行局部室壁运动功能评估，并与二维心超结果进行对照，分析640层容积CT评估左室局部室壁运动的敏感性、特异性及准确性。结果：640层容积CT和心超分别发现196个、190个运动异常节段，其中运动严重减弱或无运动的节段分别为58个、50个，轻至中度运动减弱的节段分别为138个、140个。以心超作为参照，640层容积CT诊断左室局部室壁运动异常的敏感性、特异性、准确性分别为94.0%、77.0%、91.0%。计算左室各节段室壁移动距离、室壁增厚率，作为定量评估各节段局部室壁运动情况的参数。结论：640层容积CT心功能分析不仅可以准确地定性评估左室局部室壁运动情况，还在定量评估左室局部室壁运动方面显示出巨大潜力，具有较大的临床价值。

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	潘克华
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关键词 ：体层摄影术, X线计算机, 超声心动图, 左室功能

Abstract：Objective: To evaluate the value of 640-slice MDCT in assessment of left ventricular regional wall motion (LVRWM), using 2D-echocardiography as the reference standard. Methods: Sixty-two patients undergone 640-slice MDCT and 2D-echocardiography were evaluate. The motion of 1054 segments was visually assessed by two radiologists with a 3-piont scale using a 17-segment model. A separate reader assessedLVRWM of 1054 segments on 2D-echocardiography using the same criteria as did in the MDCT. Results: LVRWM abnormalities were detected in 196 and 190 segments on MDCT and 2D-echocardiography respectively, of which 58 and 50 segments were hypokinesis or akinesis, 138 and 140 segments were mild or moderate hypokinesis. The sensitivity, specificity and accuracy of MDCT for diagnosing abnormal segment wall motion were 94.0%, 77.0%, and 91.0% respectively. The data of wall motion and wall thickening of each LV segment were also acquired. Conclusion: The value of 640-slice MDCT in qualitatively assessment of LVRWM is significant, and it shows great potential in quantitatively assessment of LVRWM.

收稿日期: 2013-05-13

作者简介: 潘克华（1979-），男，江苏东台人，主治医师，硕士

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https://xb.wmu.edu.cn/CN/ 或 https://xb.wmu.edu.cn/CN/Y2014/V44/I1/58

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