Department of Pediatric Cardiology, Izmir Tepecik Training Hospital, Medical Faculty, University of Health Sciences, Izmir, Turkey.
Department of Pediatric Cardiology, Dr Behcet Uz Children's Hospital, Medical Faculty, University of Health Sciences, Izmir, Turkey.
Acta Cardiol. 2021 May;76(3):280-287. doi: 10.1080/00015385.2020.1723880. Epub 2020 Feb 20.
We aimed to compare the findings of a segmental speckle-tracking strain of right ventricle with those of cardiac magnetic resonance imaging in this setting.
In 26 patients with operated tetralogy of Fallot (mean age, 15.35 ± 2.3 years; range 11-18 years), right ventricular segmental speckle-straining (the basal, mid, apical segments of right ventricular septum and lateral free wall, and right ventricular apex) were determined using two-dimensional echocardiography. The echocardiographic findings were compared to right ventricular ejection fraction, right ventricular indexed end-diastolic volume, indexed end-systolic volume and pulmonary regurgitation fraction at cardiac magnetic resonance.
Right ventricular global speckle strain was -18.6 ± 3.7and lateral free wall strain was -17.8 ± 4.9. Indexed right ventricular end diastolic volume was 171.7 ± 23.3 ml/m, indexed right ventricular end systolic volume was 95.1 ± 35.0 ml/m and right ventricular ejection fraction was 44.76 ± 9.39%. Basal inferior septum is correlated with indexed right ventricular end-diastolic volume (RVEDV; = -0.521, = 0.015) and pulmonary regurgitation fraction ( = -0.584, = 0.015). Cardiac magnetic resonance (CMR)-derived RVEDV is correlated with lateral free wall ( = -0.465, = 0.034) and Global RV ( = 0.442, = 0.045).
Right ventricular basal inferior septal and apical longitudinal strain correlates with the measures of right ventricular performance on CMR. These parameters would be useful to monitor right ventricular performance in patients after tetralogy of Fallot repair.
本研究旨在比较右心室节段斑点追踪应变与心脏磁共振成像在该环境下的结果。
在 26 例接受手术治疗的法洛四联症患者（平均年龄 15.35±2.3 岁；年龄范围 11-18 岁）中，使用二维超声心动图确定右心室节段斑点应变（右心室间隔的基底、中间、心尖段和右心室侧壁游离壁以及右心室心尖）。将超声心动图结果与心脏磁共振右心室射血分数、右心室指数舒张末期容积、指数收缩末期容积和肺反流分数进行比较。
右心室整体斑点应变值为-18.6±3.7，侧壁游离壁应变值为-17.8±4.9。指数右心室舒张末期容积为 171.7±23.3ml/m，指数右心室收缩末期容积为 95.1±35.0ml/m，右心室射血分数为 44.76±9.39%。下基底部间隔与指数右心室舒张末期容积（RVEDV；r=-0.521，p=0.015）和肺反流分数（r=-0.584，p=0.015）相关。心脏磁共振（CMR）得出的 RVEDV 与侧壁游离壁（r=-0.465，p=0.034）和整体 RV（r=0.442，p=0.045）相关。
右心室基底下间隔和心尖段纵向应变与 CMR 上右心室功能的测量值相关。这些参数对于监测法洛四联症修复术后患者的右心室功能很有用。
