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- W4387422495 abstract "The lack of real-time techniques for monitoring respiratory motion impairs the development of guidance systems for image-guided interventions. Recent works show that U-Net based real-time 4D MRI prediction methods are promising, but prone to bad image quality when small training data sets and inputs with multiple MR contrast are used. To overcome this problem, we propose a more efficient use of the spare training data and re-utilize 2D training samples as a secondary input for construction of transitive information bridges between the navigator slice primary input and the data slice prediction. We thus remove the need for a separate 3D breath-hold MRI with different MR contrast as the secondary input. Results show that our novel construction leads to improved prediction quality with very sparse training data, with a significant decrease in root mean squared error (RMSE) from 0.3 to 0.27 (p $$<2.2e^{-16}$$ , d=0.19). Additionally, removing 3D imaging reduces prior acquisition time from 3 to 2 min." @default.
- W4387422495 created "2023-10-08" @default.
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- W4387422495 date "2023-01-01" @default.
- W4387422495 modified "2023-10-18" @default.
- W4387422495 title "Using Training Samples as Transitive Information Bridges in Predicted 4D MRI" @default.
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- W4387422495 doi "https://doi.org/10.1007/978-3-031-44917-8_23" @default.
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