Medical image display and analysis for diagnosis and treatment

磁共振成像（MRI）和彩色皮肤图像等医学图像可用于研究、诊断和手术计划。我们计划研究的重点是扩散张量磁共振成像（DT-MR），这是一种新的医学成像方式，可以测量生物组织（主要是大脑和心脏）中水分子的无创和体内随机运动。它产生了一个3D图像，其中每个体素的水扩散方向被建模为扩散张量。处理和分析DT-MR图像，如执行降噪、分割、配准等，需要使用扩散张量距离度量。已经提出了几种DT距离度量；我们正在研究新的度量将张量的形状和角度分开。这种方法在研究诸如帕金森氏症之类的脑部疾病，以及定位纤维束表现出各向异性的大脑区域方面具有前景。

Medical images such as magnetic resonance images (MRI) and colour skin images can be used for research, for diagnosis, and for surgery planning. Our planned research will focus on Diffusion Tensor MR images (DT-MR), a new medical imaging modality that measures the random motion of water molecules in biological tissues (mainly the brain and heart) non-invasively and in vivo. It results in a 3D image where at each voxel the direction of water diffusion is modeled as a diffusion tensor. Processing and analysing DT-MR images such as performing noise reduction, segmentation, registration, etc. requires working with diffusion tensor distance metrics. Several DT distance metrics have been proposed; we are working on new metrics which separate the shape of the tensor from the angle. This approach has promise in studying brain disorders such as Parkinson's Disease, and in locating regions of the brain where the fiber tracts exhibit anisotropy.