Comparison of 2D Echocardiography and Cardiac Cine MRI in the Assessment of Regional Left Ventricular Wall Thickness
| Autor: | Vicky Y. Wang, Debbie Zhao, Jichao Zhao, Robert N. Doughty, Aaqel Nalar, Kathleen Gilbert, Alistair A. Young, Oscar Camara, Thiranja P. Babarenda Gamage, Charlene Mauger, Martyn P. Nash, Malcolm E. Legget, Vera H. J. van Hal |
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| Rok vydání: | 2020 |
| Předmět: |
medicine.diagnostic_test
business.industry Echo (computing) Magnetic resonance imaging 030204 cardiovascular system & hematology Image contrast 030218 nuclear medicine & medical imaging Cine mri 03 medical and health sciences 0302 clinical medicine 2d echocardiography medicine Left ventricular myocardium Nuclear medicine business Wall thickness Left ventricular wall |
| Zdroj: | Statistical Atlases and Computational Models of the Heart. Multi-Sequence CMR Segmentation, CRT-EPiggy and LV Full Quantification Challenges ISBN: 9783030390730 STACOM@MICCAI |
| DOI: | 10.1007/978-3-030-39074-7_6 |
| Popis: | The generation of kinematic models of the heart using 3D echocardiography (echo) can be difficult due to poor image contrast and signal dropout, particularly at the epicardial surface. 2D echo images generally have a better contrast-to-noise ratio compared to 3D echo images, thus wall thickness (WT) estimates from 2D echo may provide a reliable means to constrain model fits to 3D echo images. WT estimates were calculated by solving a pair of differential equations guided by a vector field, which is constructed from the solution of Laplace’s equation on binary segmentations of the left ventricular myocardium. We compared 2D echo derived WT estimates against values calculated using gold-standard cardiac cine magnetic resonance imaging (MRI) to assess reliability. We found that 2D echo WT estimates were higher compared to WT values from MRI at end-diastole with a mean difference of 1.3 mm (95% CI: 0.74–1.8 mm), 1.5 mm (95% CI: 0.91–2.1 mm) and 2.1 mm (95% CI: 1.6–2.6 mm) for basal, mid-ventricular and apical segments respectively. At end-systole, the WT estimates from MRI were higher compared to those derived from 2D echo with a mean difference of 2.6 mm (95% CI: 2.0–3.1 mm), 2.1 mm (95% CI: 1.5–2.7 mm) and 1.1 mm (95% CI: 0.49–1.7 mm) for basal, mid-ventricular and apical segments, respectively. The quantitative WT comparison in this study will contribute to the ongoing efforts to better translate kinematic modelling analyses from gold-standard cardiac MRI to the more widely accessible echocardiography. |
| Databáze: | OpenAIRE |
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