| 姜小杰,任卫东,姜镔,肖杨杰,马春燕,李楠,刘爽.应用斑点追踪技术观察正常成人室间隔曲率半径的变化[J].中国医学影像技术,2010,26(8):1463~1465 |
| 应用斑点追踪技术观察正常成人室间隔曲率半径的变化 |
| Speckle tracking imaging in observation of variations of curvature radius of interventricular septum in normal adults |
| 投稿时间：2010-03-20 修订日期：2010-04-27 |
| DOI： |
| 中文关键词: 斑点追踪显像 室间隔 心动周期 曲率半径 曲率半径比值 |
| 英文关键词:Speckle tracking imaging Ventricular septum 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正常成人室间隔在整个心动周期过程中曲率半径变化。 方法 对20名健康志愿者,采用二维超声心动图采集左心室短轴基底段、中间段图像,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曲率半径、曲率半径比值。 结果 舒张期末曲率半径最大:室间隔基底段(26.95±2.28)mm、室间隔中间段(25.14±2.07)mm、侧后壁基底段(24.05±1.47)mm、侧后壁中间段(26.29±1.82)mm,收缩期末曲率半径最小:室间隔基底段(13.14±1.12)mm、室间隔中间段(15.85±1.43)mm、侧后壁基底段(14.22±0.76)mm、侧后壁中间段(16.73±1.16)mm;室间隔和侧后壁的基底段、中间段各自舒张期末的曲率半径均较收缩期末大,差异均有统计学意义(P均<0.05);舒张期末、收缩期末室间隔与侧后壁各段曲率半径相比,差异均无统计学意义(P均>0.05);基底段与中间段曲率半径比值差异无统计学意义(P>0.05)。 结论 应用斑点追踪技术可以评价正常成人全心动周期室间隔曲率半径变化。 |
| 英文摘要: |
| Objective To observe the variations of curvature radius of interventricular septum (IVS) during a cardiac cycle in normal adults with speckle tracking imaging. Methods Short-axis images among the basal and middle levels were recorded in 20 healthy subjects. Radius curvature (RC), RC ratio (RCR) of IVS and left ventricular lateral-posterior wall (LVLPW) were measured and calculated with speckle tracking imaging. Results The maximum of RC presented at end-diastolic stage.The basal and middle levels of IVS and LVLPW was (26.95±2.28)mm, (25.14±2.07)mm, (24.05±1.47)mm and (26.29±1.82)mm, respectively. The minimum of RC presented at end-systolic stage. The basal and middle levels of IVS and LVLPW was (13.14±1.12)mm, (15.85±1.43)mm, (14.22±0.76)mm and (16.73±1.16)mm, respectively. There was no statistical difference between changes of the basal and middle levels of RCIVS and RCLVLPW, nor between the levels of RCRIVS and RCRLVLPW, but there was statistical difference between changes of the end-diastolic and end-systolic stages of RCIVS and RCLVLPW in both basal and middle levels. Conclusion Speckle tracking imaging can be used to evaluate the variations of RCIVS during one cardiac cycle in normal adults. |
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