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Sparsely sampled cardiac cine accelerated acquisitions show promise for faster evaluation of left-ventricular function. Myocardial strain estimation using image feature tracking methods is also becoming widespread. However, it is not known whether highly accelerated acquisitions also provide reliable feature tracking strain estimates. Twenty patients and twenty healthy volunteers were imaged with conventional 14-beat/slice cine acquisition (STD), 4× accelerated 4-beat/slice acquisition with iterative reconstruction (R4), and a 9.2× accelerated 2-beat/slice real-time acquisition with sparse sampling and iterative reconstruction (R9.2). Radial and circumferential strains were calculated using non-rigid registration in the mid-ventricle short-axis slice and inter-observer errors were evaluated. Consistency was assessed using intra-class correlation coefficients (ICC) and bias with Bland-Altman analysis. Peak circumferential strain magnitude was highly consistent between STD and R4 and R9.2 (ICC = 0.876 and 0.884, respectively). Average bias was -1.7 ± 2.0 %, p < 0.001, for R4 and -2.7 ± 1.9 %, p < 0.001 for R9.2. Peak radial strain was also highly consistent (ICC = 0.829 and 0.785, respectively), with average bias -11.2 ± 18.4 %, p < 0.001, for R4 and -15.0 ± 21.2 %, p < 0.001 for R9.2. STD circumferential strain could be predicted by linear regression from R9.2 with an R of 0.82 and a root mean squared error of 1.8 %. Similarly, radial strain could be predicted with an R of 0.67 and a root mean squared error of 21.3 %. Inter-observer errors were not significantly different between methods, except for peak circumferential strain R9.2 (1.1 ± 1.9 %) versus STD (0.3 ± 1.0 %), p = 0.011. Although small systematic differences were observed in strain, these were highly consistent with standard acquisitions, suggesting that accelerated myocardial strain is feasible and reliable in patients who require short acquisition durations.
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http://dx.doi.org/10.1007/s10554-016-0978-x | DOI Listing |
Int J Cardiol
December 2024
Department of Cardiology, University Medical Center Groningen, Hanzeplein 1, 9713 GZ Groningen, the Netherlands. Electronic address:
Background: Left atrial (LA) strain reflects not only LA function but also systolic and diastolic left ventricular function. We therefore hypothesize that LA strain may be a comprehensive predictor of heart failure related endpoints after ST-elevation myocardial infarction (STEMI). We aim to assess the impact of LA reservoir strain on the long-term prognosis following ST-elevation myocardial infarction (STEMI).
View Article and Find Full Text PDFARYA Atheroscler
January 2024
Department of Cardiology, Dr Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran.
Background: Percutaneous coronary intervention (PCI) is an effective treatment for coronary artery disease. Previous studies have demonstrated the delayed effects of PCI on left ventricular diastolic and systolic function. However, the early impact on these parameters has not been systematically examined.
View Article and Find Full Text PDFInt J Cardiol Congenit Heart Dis
December 2024
Division of Structural and Congenital Cardiology, University Hospitals Leuven, Leuven, Belgium.
Background: The Mustard and Senning operations for dextro-transposition of the great arteries (D-TGA) establish a biventricular physiology with a subaortic right ventricle (sRV). While prolonged QRS has been associated with worse prognosis in these patients, current echocardiographic tools fall short in adequately assessing the (mal)performance and function decline of the sRV during follow-up. The present study is the first to characterize Myocardial Work (MW) indices of the sRV in D-TGA patients after Mustard/Senning repair.
View Article and Find Full Text PDFBMC Cardiovasc Disord
December 2024
Cardiology Department, Royal Albert Edward Infirmary, WWL NHS Trust, Wigan, UK.
Background: Concomitant cardiac amyloidosis (CA) and aortic stenosis (AS) may be mistaken for isolated AS, potentially impacting the treatment strategy and patient's prognosis. Therefore, it is crucial to distinguish between these conditions, as failure to promptly diagnose CA may lead to considerable complications. The aim of this study is to investigate the diagnostic value of strain predictors in patients with concomitant CA and AS compared to isolated AS.
View Article and Find Full Text PDFCan J Cardiol
December 2024
Department of Ultrasound, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Clinical Research Center for Medical Imaging in Hubei Province, Wuhan 430022, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan 430022, China. Electronic address:
Background: This study aimed to evaluate changes in left ventricular (LV) function and myocardial microstructure in fetuses with right ventricular hypoplasia (RVH) using two-dimensional speckle tracking echocardiography (2D-STE), diffusion tensor cardiovascular magnetic resonance imaging (DT-CMR) and proteomics analysis.
Methods: 51 singleton fetuses diagnosed with RVH and 51 normal fetuses were retrospectively included. LV global longitudinal strain (GLS) and global circumferential strain (GCS) were acquired by 2D-STE.
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