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Stereoscopic Visualization of Diffusion Tensor Imaging Data: A Comparative Survey of Visualization Techniques

机译:扩散张量成像数据的立体可视化:可视化技术的比较调查

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Diffusion tensor imaging (DTI) data has traditionally been displayed as a grayscale functional anisotropy map (GSFM) or color coded orientation map (CCOM). These methods use black and white or color with intensity values to map the complex multidimensional DTI data to a two-dimensional image. Alternative visualization techniques, such asVmaxmaps utilize enhanced graphical representation of the principal eigenvector by means of a headless arrow on regular nonstereoscopic (VM) or stereoscopic display (VMS). A survey of clinical utility of patients with intracranial neoplasms was carried out by 8 neuroradiologists using traditional and nontraditional methods of DTI display. Pairwise comparison studies of 5 intracranial neoplasms were performed with a structured questionnaire comparing GSFM, CCOM, VM, and VMS. Six of 8 neuroradiologists favoredVmaxmaps over traditional methods of display (GSFM and CCOM). When comparing the stereoscopic (VMS) and the non-stereoscopic (VM) modes, 4 favored VMS, 2 favored VM, and 2 had no preference. In conclusion, processing and visualizing DTI data stereoscopically is technically feasible. An initial survey of users indicated thatVmaxbased display methodology with or without stereoscopic visualization seems to be preferred over traditional methods to display DTI data.
机译:传统上,扩散张量成像(DTI)数据已显示为灰度功能各向异性图(GSFM)或颜色编码的方向图(CCOM)。这些方法使用具有强度值的黑白或彩色将复杂的多维DTI数据映射到二维图像。可选的可视化技术(例如Vmaxmap)通过常规非立体(VM)或立体显示(VMS)上的无头箭头利用主特征向量的增强图形表示。由8位神经放射科医生使用DTI展示的传统方法和非传统方法对颅内肿瘤患者的临床效用进行了调查。用结构化问卷对5例颅内肿瘤进行成对比较研究,比较GSFM,CCOM,VM和VMS。 8位神经放射科医生中有6位相对于传统的显示方法(GSFM和CCOM)更喜欢Vmaxmap。在比较立体(VMS)模式和非立体(VM)模式时,有4个偏爱VMS,2个偏爱VM和2个不偏爱。总之,立体地处理和可视化DTI数据在技术上是可行的。对用户的初步调查表明,基于Vmax的显示方法(带有或不带有立体可视化)似乎比显示DTI数据的传统方法更为可取。

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