测试使用供应商中立平台评估右心室(RV)应变的可行性和可靠性。通过比较RV应变评估之间的观察者内部和观察者之间的变异性来确定可靠性。次要目的是评估应变与常规RV功能参数的相关性,以评估其作为RV收缩功能评估工具的可行性。
这是一项回顾性研究。
三甲医院。
共有15例接受择期冠状动脉旁路移植术的患者入选。
无。
常规过程中获得的图像,术中,二维经食管超声心动图(2DTEE)评估纵向应变(LS)和常规参数,包括分数面积变化(FAC),三尖瓣环平面收缩期偏移(TAPSE),多普勒组织成像(DTI)衍生的三尖瓣外侧环收缩期速度波(S'),和RV尺寸使用供应商中立的软件。除了基底自由壁纵向应变(FWLS)(对于观察者内和观察者间的再现性,ICC分别=0.670和0.749)。FWLS和全球纵向应变(GLS)与FAC呈中度到强正相关,TAPSE,和S'(相关系数从0.667到0.721)。
以可再现和可靠的方式评估跨多个平台的RV菌株是可行的。此外,RV菌株与常规RV功能参数表现出良好的相关性,表明其作为一种敏感的RV功能评估工具的可行性。
To test the feasibility and reliability of using a vendor-neutral platform to evaluate right ventricular (RV) strain. Reliability was determined by comparing intra- and inter-observer variability between RV strain assessments. The secondary objective was to assess strain\'s correlation with conventional RV functional parameters to evaluate its feasibility as a RV systolic functional assessment tool.
This is a retrospective study.
Tertiary hospital.
A total of 15 patients who underwent elective coronary artery bypass graft surgery were selected for inclusion.
None.
Images obtained during routine, intraoperative, two-dimensional transesophageal echocardiography (2D TEE) were assessed for longitudinal strain (LS) and conventional parameters, including fractional area change (FAC), tricuspid annular plane systolic excursion (TAPSE), Doppler tissue imaging (DTI)-derived tricuspid lateral annular systolic velocity wave (S\'), and RV dimensions using vendor-neutral software. There was good to excellent intra- and inter-observer reproducibility (intraclass correlation coefficient [ICC] from 0.75 to 1.00) with the exception of basal free wall longitudinal strain (FWLS) (for intra- and inter-observer reproducibility, ICC = 0.670 and 0.749, respectively). FWLS and global longitudinal strain (GLS) showed moderate to strong positive correlation with FAC, TAPSE, and S\' (correlation coefficients from 0.667 to 0.721).
It is feasible to assess RV strain across multiple platforms in a reproducible and reliable fashion. Furthermore, RV strain demonstrated good correlation with conventional RV functional parameters, suggesting its feasibility as a sensitive RV function assessment tool.