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Abstract #4545

Free breathing cardiac T2 mapping via single-shot ZOOM-MOLED and deep learning reconstruction

Chenyang Dai1, Liuhong Zhu2, Jian Wu1, Qinqin Yang1, Zhigang Wu3, Zhong Chen1, Congbo Cai1, and Shuhui Cai1
1Department of Electronic Science, Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance, Xiamen University, Xiamen, China, 2Department of Radiology, Zhongshan Hospital Fudan University Xiamen Branch, Xiamen, China, 3MSC Clinical & Technical Solutions, Philips Healthcare, Shenzhen, China

Synopsis

Keywords: Quantitative Imaging, Quantitative Imaging, Data acquisition, Myocardium

Motivation: Quantitative cardiac magnetic resonance (CMR) imaging has important applications in clinic. However, conventional parametric mapping methods suffer from inherent inefficiencies.

Goal(s): To enhance the resolution of reconstructed images, mitigate image distortion and artifacts, and improve the signal-to-noise ratio in quantitative CMR imaging.

Approach: A method was proposed which combines single-shot multiple overlapping-echo detachment (MOLED) imaging with outer volume suppression (OVS) and zonal oblique multislice (ZOOM) techniques, and deep learning reconstruction was used for image reconstruction.

Results: The results of simulation, phantom, and in vivo healthy volunteer experiments show great performance of the proposed method.

Impact: This study developed a cardiac T2 mapping method without requirement of breath-holding or respiratory-gating. It paves the way for real-time dynamic high-resolution cardiac T2 mapping.

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Keywords