Deformable image registration (DIR) in low‐contrast tissues is often suboptimal because of low visibility of landmarks, low driving‐force to deform, and low penalty for misalignment. We aim to overcome the shortcomings for improved reconstruction of time‐resolved four‐dimensional magnetic resonance imaging (TR‐4DMRI).

中文翻译：

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使用两步混合可变形图像配准，在低对比度组织中增强T1w时间分辨4DMRI的超分辨率重建。

低对比度组织中的可变形图像配准（DIR）通常次优，这是因为地标的可见性低，变形的驱动力低以及未对准的损失小。我们旨在克服改进时间分辨四维磁共振成像（TR-4DMRI）的缺点。