Exploration of 4D MRI Blood Flow using Stylistic Visualization
Exploration of 4D MRI Blood Flow using Stylistic Visualization
复制标题
使用风格可视化探索 4D MRI 血流
DOI：
10.1109/tvcg.2010.153
复制
发表时间：
2010
影响因子：
5.2
通讯作者：
A. Vilanova
中科院分区：
文献类型：
--
作者：
R. V. Pelt;J. O. Bescós;M. Breeuwer;R. Clough;E. Gröller;B. T. H. Romeny;A. Vilanova
对血流动力学的深入了解大大提高了对复杂心血管系统及其病理学的理解。MRI技术的进步使得能够采集4D血流数据，提供随时间变化的定量血流速度。目前典型的逐层分析需要对不稳定的血流场进行完全的心理重建，这是一项繁琐且极具挑战性的任务，即使对于熟练的医生来说也是如此。我们奋进通过全面的可视化和交互技术来减轻这一任务。在本文中，我们提出了一个临床前心血管研究的框架，提供工具，交互式地探索4D血流数据，并描绘基本的血流特征。该框架包括各种可视化风格，包括说明性的技术，以及改进的方法，从已建立的流场可视化。每种合并的样式，包括分解平面重新格式化、流向高亮和箭头轨迹，都可以局部捕获血流动力学，并可以通过交互式探测血管横截面启动。此外，我们提出了领域专家的评估结果，测量每个可视化风格和相关渲染参数的价值。
Insight into the dynamics of blood-flow considerably improves the understanding of the complex cardiovascular system and its pathologies. Advances in MRI technology enable acquisition of 4D blood-flow data, providing quantitative blood-flow velocities over time. The currently typical slice-by-slice analysis requires a full mental reconstruction of the unsteady blood-flow field, which is a tedious and highly challenging task, even for skilled physicians. We endeavor to alleviate this task by means of comprehensive visualization and interaction techniques. In this paper we present a framework for pre-clinical cardiovascular research, providing tools to both interactively explore the 4D blood-flow data and depict the essential blood-flow characteristics. The framework encompasses a variety of visualization styles, comprising illustrative techniques as well as improved methods from the established field of flow visualization. Each of the incorporated styles, including exploded planar reformats, flow-direction highlights, and arrow-trails, locally captures the blood-flow dynamics and may be initiated by an interactively probed vessel cross-section. Additionally, we present the results of an evaluation with domain experts, measuring the value of each of the visualization styles and related rendering parameters.