Combined Segmentation and Hemodynamic Analysis of Cerebrovascular Structures using Spatiotemporal Arterial Spin Labeling MRI

磁共振成像（MRI）已成为一种不可缺少的诊断和研究工具。它能够可视化器官的解剖结构和功能。由于MRI技术的进步，时间分辨率三维（即4D） MRI血流测量，例如动脉自旋标记（ASL）磁共振血管造影（MRA），最近越来越受到人们的关注。4D ASL MRA序列现在能够成像脑血管结构和血流，空间分辨率优于1mm

Magnetic resonance imaging (MRI) has become an indispensable diagnostic and research tool. It is capable of visualizing the anatomy and function of organs. Time-resolved three-dimensional (i.e. 4D) MRI blood flow measurements, e.g. arterial spin labeling (ASL) MR angiography (MRA), of the brain is of increasing recent interest due to MRI technology advancements. 4D ASL MRA sequences are now capable of imaging cerebrovascular structures and blood flow with a spatial resolution better than 1 mm