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Abstract #4092

Intravoxel incoherent motion diffusion-weighted Imaging of lung: comparison between turbo spin-echo and echo-planar imaging

Qi Wan1, Xinchun Li1, Qiang Lei1, Tianjing Zhang2, and Zhongping Zhang2

1The first affiliated hospital of Guangzhou Medical University, Guangzhou, China, 2Philips Healthcare, Guangzhou, China

The image quality of single-shot echo-planar imaging (EPI)-DWI (SS-EPI-DWI) is usually deteriorated by susceptibility artefacts, especially in lung, because EPI sequence is vulnerable to magnetic inhomogeneity and phase error accumulation. This could lead to inabilities of diagnosis or inaccuracy of measurements. In this study, lung DWI were acquired using both single-shot turbo spin-echo (SS-TSE) and SS-EPI techniques. Significantly changes were observed in distortion ratio (DR) between both techniques. SS-TSE-DWI has better image quality and almost zero distortion compared to SS-EPI-DWI.

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