| 姜小杰,任卫东,姜镔,肖杨杰,乔伟.应用斑点追踪技术观察房间隔缺损患者室间隔曲率半径的变化[J].中国医学影像技术,2011,27(11):2214~2217 |
| 应用斑点追踪技术观察房间隔缺损患者室间隔曲率半径的变化 |
| Observation on variations of curvature radius of interventricular septum in atrial septal defect patients with speckle tracking imaging |
| 投稿时间：2011-04-19 修订日期：2011-07-16 |
| DOI： |
| 中文关键词: 斑点追踪显像 室间隔 房间隔缺损 心动周期 曲率半径 曲率半径比值 |
| 英文关键词:Speckle tracking imaging Ventricular septum Heart septal defects, atrial Cardiac cycle Curvature radius Curvature radius ratio |
| 基金项目:辽宁省自然科学基金(20082106)。 |
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| 中文摘要: |
| 目的 应用斑点追踪技术研究比较房间隔缺损(ASD)患者与正常成人室间隔曲率半径(RC)在整个心动周期中的变化。 方法 选择24例ASD患者(ASD组)和20名健康志愿者(对照组),以二维超声心动图采集左心室短轴基底段、中间段动态图像,利用斑点追踪技术测量并计算整个心动周期室间隔和侧后壁的RC及曲率半径比值(RCR)。 结果 ASD组室间隔与侧后壁各段RC比较,舒张期末差异均有统计学意义(P均<0.05),收缩期末差异均无统计学意义(P均>0.05);ASD组与对照组室间隔各段RC比较,舒张期末差异均有统计学意义(P均<0.05),收缩期末差异均无统计学意义(P均>0.05);ASD组与对照组各段RCR比较,舒张期末差异均有统计学意义(P均<0.05),收缩期末差异均无统计学意义(P均>0.05);对照组舒张期末、收缩期末室间隔与侧后壁各段RC差异均无统计学意义(P均>0.05)。 结论 ASD患者室间隔RC在舒张期大于收缩期,通过观察全心动周期室间隔RC的变化可以评价ASD患者左、右心室之间的压力变化。 |
| 英文摘要: |
| Objective To compare atrial septal defect (ASD) patients with normal adults about variations of curvature radius of interventricular septum (IVS) throughout the cardiac cycle with speckle tracking imaging (STI). Methods Short-axis images at the basal and middle levels were recorded in 24 ASD patients (ASD group) and 20 control subjects (control group). Radius curvature (RC) and RC ratio (RCR) of IVS and left ventricular lateral-posterior wall (LVLPW) were measured and calculated with STI. Results There was statistical difference between changes of the basal and middle levels of IVS RC and LVLPW RC in ASD group at the end of diastole (all P<0.05), but not during systole (all P>0.05). There was also statistical difference between changes of the basal and middle levels of IVS RC in ASD group and in controls at the end of diastole (all P<0.05), but not systole (all P>0.05). In addition, both the basal and middle levels of RCR in ASD group were statistically different with those of the controls at the end of diastole (all P<0.05), but not systole (all P>0.05). In the control group, no statistical difference of RC was found between IVS and LVLPW at the end of systole or diastole (all P>0.05). Conclusion IVS RC of ASD patients was greater in diastolic than in systolic, and the pressure changes between left ventricular and right ventricular in ASD patients can be evaluated by observing the variations of IVS RC. |
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