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Abstract #4492

ML models for 4D cine imaging

Mark Wrobel1, Vivek Muthurangu1, Javier Montalt1, and Jennifer Steeden1
1Centre for Translational Cardiovascular Imaging, UCL, London, United Kingdom

Synopsis

Keywords: AI/ML Image Reconstruction, Machine Learning/Artificial Intelligence

Motivation: The motivation behind this study is to severely shorten scan times for children undergoing cardiac examination.

Goal(s): The goal is to be able to create a 4D dataset from a short, free breathing real-time 2D stack of images.

Approach: We apply three machine learning models to the 2D stack. The first reconstructs the undersampled image data, the second corrects respiratory artefacts caused by free-breathing and the third model super resolves the images.

Results: The image quality is vastly improved after applying the machine learning models. The ventricular volumes are also in good agreement with the reference volumes.

Impact: Severely reduced scan times for comprehensive cardiac examination in CHD without the use of breath-holds. Machine Learning methods may be able to also be used for other imaging sequences, also resulting in faster image acquisition.

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Keywords