Inter-vendor reproducibility and accuracy of segmental left ventricular strain measurements using CMR feature tracking
Inter-vendor reproducibility and accuracy of segmental left ventricular strain measurements using CMR feature tracking
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DOI：
10.1007/s00330-019-06315-4
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发表时间：
2019-12-01
影响因子：
5.9
通讯作者：
Bogaert, Jan
中科院分区：
文献类型：
--
作者：
Dobrovie, Monica;Barreiro-Perez, Manuel;Bogaert, Jan
目的我们的目的是评估供应商间的可重复性的心血管MR特征跟踪（CMR-FT）的测量节段性应变（SS）的左心室（LV），以及测试CMR-FT的准确性，以检测区域心肌pathology.Methods我们选择了45例患者：15与正常CMR结果，15与扩张型心肌病，15与急性心肌梗死。使用4种不同的软件评估节段纵向、周向和径向应变。研究了供应商间差异以及观察者内和观察者间变异性。此外，CMR-FT检测结构（梗死节段）以及功能病理（左束支分支阻滞中的间隔与侧壁应变）的准确性进行了测试。
Objectives Our aim was to evaluate the inter-vendor reproducibility of cardiovascular MR feature tracking (CMR-FT) for the measurement of segmental strain (SS) of the left ventricle (LV) as well as to test the accuracy of CMR-FT to detect regional myocardial pathology.Methods We selected 45 patients: 15 with normal CMR findings, 15 with dilated cardiomyopathy, and 15 with acute myocardial infarction. Segmental longitudinal, circumferential, and radial strains were assessed with 4 different software. The inter-vendor difference as well as intra- and inter-observer variability was investigated. Furthermore, the accuracy of CMR-FT for the detection of structural (infarcted segments) as well as functional pathology (septal vs. lateral wall strain in left bundle branch block) was tested.Results Between vendors, there were significant differences in values for all strains (p0.962 and coefficient of variation (CV)