arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2103.16744cs.CVeess.IV
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多对比度MRI的采样和重建深度同时优化

Deep Simultaneous Optimisation of Sampling and Reconstruction for Multi-contrast MRI

The University of Queensland(昆士兰大学);Griffith University(格里菲斯大学)

Xinwen Liu, Jing Wang, Fangfang Tang, Shekhar S. Chandra, Feng Liu, Stuart Crozier

摘要:

同一受试者不同对比度的MRI图像包含共享信息,例如解剖结构。利用对比度之间的冗余信息对多对比度图像进行亚采样和忠实重建,可以大大加快成像速度,提高图像质量,缩短扫描流程。我们提出了一种算法,生成优化的采样模式和重建方案的一个对比度(例如T2加权图像)时,具有不同的对比度的图像(例如T1加权图像)已被收购。与其他采集模式和单对比度方法相比,该算法实现了最佳采样模式的PSNR和SSIM的增加。

英文摘要:

MRI images of the same subject in different contrasts contain shared information, such as the anatomical structure. Utilizing the redundant information amongst the contrasts to sub-sample and faithfully reconstruct multi-contrast images could greatly accelerate the imaging speed, improve image quality and shorten scanning protocols. We propose an algorithm that generates the optimised sampling pattern and reconstruction scheme of one contrast (e.g. T2-weighted image) when images with different contrast (e.g. T1-weighted image) have been acquired. The proposed algorithm achieves increased PSNR and SSIM with the resulting optimal sampling pattern compared to other acquisition patterns and single contrast methods.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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