Search International and National Patent Collections

1. (WO2018082026) SPHERICAL K-SPACE COLLECTION METHOD AND APPARATUS FOR THREE-DIMENSIONAL DYNAMIC MAGNETIC RESONANCE IMAGING

Pub. No.:    WO/2018/082026    International Application No.:    PCT/CN2016/104665
Publication Date: Sat May 12 01:59:59 CEST 2018 International Filing Date: Sat Nov 05 00:59:59 CET 2016
IPC: A61B 5/055
Applicants: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY
深圳先进技术研究院
Inventors: ZHU, Yanchun
朱艳春
LI, Shuo
李硕
YANG, Jie
杨洁
XIE, Yaoqin
谢耀钦
Title: SPHERICAL K-SPACE COLLECTION METHOD AND APPARATUS FOR THREE-DIMENSIONAL DYNAMIC MAGNETIC RESONANCE IMAGING
Abstract:
Proposed are a spherical k-space collection method and apparatus for three-dimensional dynamic magnetic resonance imaging. The method comprises: establishing a spherical k-space model and determining a collection track code of an echo signal in the model, wherein the echo signal is: in the sphere, a radial half-echo signal from a spherical centre to a spherical surface, or a diametral full-echo signal through the spherical centre, and an elevation angle θ and an azimuth angle φ of the echo signal are obtained by means of calculation according to the two-dimensional golden section ratio; and inputting the collection track code into a magnetic resonance imaging system, and collecting k-space data for filling the spherical k-space model according to the collection track code. The method can achieve the continuous collection of three-dimensional k-space data, and make the collected k-space data be approximately and uniformly distributed within any time window, thereby being able to achieve continuous three-dimensional dynamic image reconstruction and high-temporal-resolution three-dimensional dynamic magnetic resonance imaging.