斑点追踪应变成像评价正常人左心房与右心房功能的差异性

发布时间：2018-12-20 08:16

【摘要】：目的应用二维斑点追踪显像(2D speckle tracking echocardiography,2DSTE)技术探讨正常人左心房(LA)与右心房(RA)功能的差异性。方法正常人148名,获取心尖四腔观和二腔观图像,应用Tom Tec软件脱机分析心房应变及应变率参数:反映心房储存功能的收缩期整体纵向峰值应变εs、反映心房管道功能的舒张早期心房整体纵向峰值应变εe、反映心房泵功能的舒张晚期心房整体纵向峰值应变εa,以及对应时相的应变率参数SRs、SRe、SRa。结果 LA最大容积(43±11)ml、储存功能参数[充盈总容积(30±9)ml,扩张指数(193±92)%,舒张期排空指数(63±11)%]和通道功能参数[被动排空指数(30±10)%]均显著高于RA上述指标[分别为(38±10)ml、(21±7)ml、(138±79)%、(54±12)%和(25±13)%],均P0.01。而与之相反的是,应变分析结果显示RAεs(59±8)%,SRs(2.5±0.7)/s,εe(32±10)%和εa(-29±11)%均显著高于LAεs(43±6)%,SRs(2.3±0.7)/s,εe(23±5)%和εa(-20±3)%,均P0.01。结论应用2DSTE技术测得正常人LA和RA的功能存在差异性。
[Abstract]:Objective to investigate the difference of (RA) function between left atrium and right atrium by 2D speckle tracking echocardiography,2DSTE. Methods Tom Tec software was used to analyze the atrial strain and strain rate parameters: the whole longitudinal peak strain 蔚 s, which reflected the storage function of atrium, was obtained from 148 normal subjects. The peak longitudinal strain 蔚 _ e of the early diastolic atrium, the global longitudinal peak strain 蔚 _ a of the late diastolic phase reflecting the atrial pump function, and the strain rate parameter SRs,SRe,SRa. of the corresponding phase are reflected in the early diastolic function of the atrium. Results the maximum volume of LA was (43 卤11) ml, storage function parameter [filling volume (30 卤9) ml, expansion index was (193 卤92)%]. The diastolic emptying index (63 卤11)% and the passive emptying index (30 卤10)% were significantly higher than those of RA [(38 卤10) ml, (21 卤7) ml, (138 卤79)%, (54 卤12)% and (25 卤13)%, respectively] (P0.01). In contrast, the results of strain analysis showed that RA 蔚 s (59 卤8)%, SRs (2.5 卤0.7 / s, 蔚 e (32 卤10)% and 蔚 a (-29 卤11)% were significantly higher than LA 蔚 s (43 卤6)%, SRs (2.3 卤0.7 / s. 蔚 e (23 卤5)% and 蔚 a (-20 卤3)%, both P 0.01. Conclusion there is difference between LA and RA by 2DSTE technique.
【作者单位】：上海市第六人民医院超声医学科;
【基金】：上海市科学技术委员会科研计划项目资助(134119a5801)
【分类号】：R540.45

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