波谱学杂志2017，Vol.34Issue(4)：439-452,14.DOI:10.11938/cjmr20172562
一种以超分辨率理论为基础的磁共振眼球成像方法
A Novel Method for Magnetic Resonance Ocular Imaging Using Super-Resolution Reconstruction
李宇宙 1张喆 1陈泉荣 2郭华1
作者信息
- 1. 清华大学 医学院 生物医学工程系,生物医学影像研究中心,北京 100084
- 2. Departments of Ophthalmology and Radiology, NYU Langone Medical Center, New York University School of Medicine, New York 10016, United States
- 折叠
摘要
Abstract
Magnetic resonance imaging (MRI) is a noninvasive intraocular tumor detection method without ionizing radiation. However, resolution limitation and motion artifacts are difficult to overcome in the imaging process. Conventional scanning methods inevitably introduce motion artifacts, or require the subjects to cooperate for accurate eye fixation, increasing the difficulty of imaging and giving the subject uncomfortable experiences. In this work, a new MRI method based on super-resolution theory is proposed, which uses a specialized orbit coil to scan a series of dynamic images of the eyeball, such that the acquisition resolution in different directions is complementary. High-resolution eyeball images with minimal motion artifacts could then be obtained after pre-processing, registration, super-resolution reconstruction and other operations. The study showed that the method proposed can be used to obtain clear eyeball images without the requirement of eye fixation.关键词
磁共振成像(MRI)/眼球图像/超分辨率/眼球成像方法Key words
magnetic resonance imaging (MRI)/eyeball image/super-resolution/ocular imaging method分类
数理科学引用本文复制引用
李宇宙,张喆,陈泉荣,郭华..一种以超分辨率理论为基础的磁共振眼球成像方法[J].波谱学杂志,2017,34(4):439-452,14.
