Fast, automated, N-dimensional phase-unwrapping algorithm

被引：568

作者：

Jenkinson, M ^{[1
]}

机构：

[1] Univ Oxford, John Radcliffe Hosp, Oxford Ctr Funct Magnet Resonance Imaging Brain, FMRIB, Oxford OX3 9DU, England

来源：

MAGNETIC RESONANCE IN MEDICINE | 2003年 / 49卷 / 01期

关键词：

phase unwrapping; echo planar imaging (EPI); field mapping; venogram; automated shimming;

D O I：

10.1002/mrm.10354

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

This work investigates the general problem of phase unwrapping for arbitrary N-dimensional phase maps. A cost function-based approach is outlined that leads to an integer programming problem. To solve this problem, a best-pair-first region merging approach is adopted as the optimization method. The algorithm was implemented and tested with 3D MRI medical data for venogram studies, as well as for fMRI applications in EPI unwarping and rapid, automated shimming. (C) 2003 Wiley-Liss, Inc.

引用

页码：193 / 197

页数：5

共 21 条

[11] CORRECTION FOR GEOMETRIC DISTORTION IN ECHO-PLANAR IMAGES FROM B-0 FIELD VARIATIONS [J].