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    王平, 李林. 3D-STI技术在评价阵发性心房颤动合并高血压病人左心房功能中的价值[J]. 蚌埠医科大学学报, 2023, 48(9): 1274-1277. DOI: 10.13898/j.cnki.issn.1000-2200.2023.09.022
    引用本文: 王平, 李林. 3D-STI技术在评价阵发性心房颤动合并高血压病人左心房功能中的价值[J]. 蚌埠医科大学学报, 2023, 48(9): 1274-1277. DOI: 10.13898/j.cnki.issn.1000-2200.2023.09.022
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    WANG Ping, LI Lin. Value of 3D-STI technology in evaluating and predicting left atrial function in patients with paroxysmal atrial fibrillation and hypertension[J]. Journal of Bengbu Medical University, 2023, 48(9): 1274-1277. DOI: 10.13898/j.cnki.issn.1000-2200.2023.09.022
    Citation: WANG Ping, LI Lin. Value of 3D-STI technology in evaluating and predicting left atrial function in patients with paroxysmal atrial fibrillation and hypertension[J]. Journal of Bengbu Medical University, 2023, 48(9): 1274-1277. DOI: 10.13898/j.cnki.issn.1000-2200.2023.09.022
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    3D-STI技术在评价阵发性心房颤动合并高血压病人左心房功能中的价值

    Value of 3D-STI technology in evaluating and predicting left atrial function in patients with paroxysmal atrial fibrillation and hypertension

      摘要
    • 摘要:
      目的应用三维斑点追踪成像技术(3D-STI)测量阵发性房颤伴高血压(PAF-HT)病人的左心房容积、应变及同步性等指标，探讨其左心房功能的变化。
      方法选取有完整资料PAF-HT病人45例作为观察组，同时征集48名健康志愿者为对照组，观察组依据左心房内径指数(LAI)进一步分为左心房扩大组和无扩大组。对获得的全容积三维图像进行后处理计算，得到左心房整体纵向应变(GLS)和圆周应变(GCS)，左心房最大容积指数(MaxLAVi)、左心房最小容积指数(MinLAVi)及左心房主动收缩前容积指数(PaLAVi)，左心房心肌纵向应变达峰时间标准差(TLS-SD)和圆周应变达峰时间标准差(TCS-SD)。通过对比观察组与对照组各指标的差异，分析2组间左心房功能的差异性，并进一步分析左心房构型差异间的功能变化。
      结果观察组MaxLAVi、MinLAVi、PaLAVi、GLS、GCS、TLS-SD、TCS-SD与对照组相比差异均有统计学意义(P < 0.05)；GLS、GCS在无扩大组与扩大组间差异无统计学意义(P>0.05)，左心房扩大组的TLS-SD、TCS-SD指标均高于无扩大组(P < 0.05)。
      结论3D-STI作为一项无创的探查技术可以在PAF-HT病人左心房构型发生变化前预测其功能状态，为临床上超前诊断、定量评价左心房功能的变化提供了临床评价路径。

       

      Abstract:
      ObjectiveThree-dimensional speckle tracking imaging (3D-STI) was used to measure left atrial volume, strain, and synchronicity in patients with paroxysmal atrial fibrillation and hypertension, and the changes in left atrial function was explored.
      MethodsA total of 45 patients with paroxysmal atrial fibrillation and hypertension (PAF-HT) who had complete data were selected as the abservation group, and 48 healthy subjects were recruited as the control group.The observation group was further divided into left atrial enlargement group and non-enlargement group based on left atrial inner diameter index (LAI).Post-processing calculations on the obtained full volume 3D image were performed to obtain overall longitudinal strain (GLS), circumferential strain (GCS) of the left atrium, left atrial maximum volume index (MaxLAVi), left atrial minimum volume index (MinLAVi), left atrial active pre systolic volume index (PaLAVi), the standard deviation of peak time for longitudinal strain in the left atrial myocardium (TLS-SD) and the standard deviation of peak time for circumferential strain (TCS-SD).By comparing the differences in various indicators between the observation group and the control group, the differences in left atrial function between the two groups were compared, and the functional changes between the differences in left atrial configuration were further analyzed.
      ResultsThe left atrial volume index (MaxLAVi, MinLAVi, PaLAVi), strain index (GLS, GCS), and standard deviation of myocardial strain peak time (TLS-SD, TCS-SD) in the PAF-HT group showed statistically significant differences compared with the control group (P < 0.05).There was no statistically significant difference in GLS and GCS indicators between the non-enlargement enlargement group and the enlargement group (P>0.05).The TLS-SD and TCS-SD indicators in the left atrial enlargement group were higher than those in the non-enlargement group (P < 0.05).
      Conclusions3D-STI can predict the functional status of the left atrium in PAF-HT patients in advance before changes occur, providing a new clinical evaluation pathway for advanced diagnosis and quantitative evaluation of changes in left atrium function in clinical practice.

       

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