EVALUATION OF A SIMPLE METHOD FOR RECONSTRUCTING ASYMMETRICALLY SAMPLED ECHO DATA

被引：8

作者：

MUGLER, JP

BROOKEMAN, JR

机构：

[1] Departments of Radiology and Biomedical Engineering, Mri Facility, University of Virginia Health Sciences Center, Charlottesville, Virginia, 22908, Box 190

来源：

JMRI-JOURNAL OF MAGNETIC RESONANCE IMAGING | 1991年 / 1卷 / 04期

关键词：

ASYMMETRIC SAMPLING; IMAGE PROCESSING; RAPID IMAGING;

D O I：

10.1002/jmri.1880010416

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：

A simple method for reconstructing echo data with a large degree of sampling asymmetry was investigated. The method is based on the application of an optimized data sampling window before standard Fourier transform magnitude reconstruction. The performance of this "windowed direct" reconstruction was evaluated with theoretical simulations and experimental measurements and compared with that of the half-Fourier method. With the proper selection of data sampling window parameters, highly asymmetric echo data reconstructed with standard Fourier transform magnitude algorithms produced images similar in quality to those reconstructed with the half-Fourier method. Windowed direct reconstruction provides a simple and computationally fast alternative to more sophisticated algorithms and may be particularly applicable for specialized or developmental applications.

引用

页码：487 / 491

页数：5

共 14 条

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