Synthesizing MR Contrast and Resolution through a Patch Matching Technique.
Synthesizing MR Contrast and Resolution through a Patch Matching Technique.
复制标题
DOI：
10.1117/12.844575
复制
发表时间：
2010
期刊：
影响因子：
--
通讯作者：
Prince JL
中科院分区：
文献类型：
--
作者：
Roy S;Carass A;Prince JL
磁共振神经成像数据的组织对比度和分辨率对数据在临床和神经科学任务（如配准和分割）中的效用有很大影响。较长的采集时间通常会妨碍以高分辨率进行多个MR组织对比图像的常规采集，并且使用这些数据进行详细分析的机会似乎会不可避免地丢失。本文介绍了一种基于实例的方法，使用补丁匹配从多分辨率多对比度图谱，以改变图像的分辨率以及MR组织对比度从一个脉冲序列到另一个。使用这种方法来产生不同的组织对比度（T2/PD/FLAIR）从一个单一的T1加权图像上的幻影和真实的图像证明。
Tissue contrast and resolution of magnetic resonance neuroimaging data have strong impacts on the utility of the data in clinical and neuroscience tasks such as registration and segmentation. Lengthy acquisition times typically prevent routine acquisition of multiple MR tissue contrast images at high resolution, and the opportunity for detailed analysis using these data would seem to be irrevocably lost. This paper describes an example based approach using patch matching from a multiple resolution multiple contrast atlas in order to change an image's resolution as well as its MR tissue contrast from one pulse-sequence to that of another. The use of this approach to generate different tissue contrasts (T2/PD/FLAIR) from a single T1-weighted image is demonstrated on both phantom and real images.