Authors
E Mark Haacke, Yingbiao Xu, Yu‐Chung N Cheng, Jürgen R Reichenbach
Publication date
2004/9
Journal
Magnetic Resonance in Medicine: An Official Journal of the International Society for Magnetic Resonance in Medicine
Volume
52
Issue
3
Pages
612-618
Publisher
Wiley Subscription Services, Inc., A Wiley Company
Description
Susceptibility differences between tissues can be utilized as a new type of contrast in MRI that is different from spin density, T1‐, or T2‐weighted imaging. Signals from substances with different magnetic susceptibilities compared to their neighboring tissue will become out of phase with these tissues at sufficiently long echo times (TEs). Thus, phase imaging offers a means of enhancing contrast in MRI. Specifically, the phase images themselves can provide excellent contrast between gray matter (GM) and white matter (WM), iron‐laden tissues, venous blood vessels, and other tissues with susceptibilities that are different from the background tissue. Also, for the first time, projection phase images are shown to demonstrate tissue (vessel) continuity. In this work, the best approach for combining magnitude and phase images is discussed. The phase images are high‐pass‐filtered and then transformed to a special …
Total citations
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Scholar articles
EM Haacke, Y Xu, YCN Cheng, JR Reichenbach - Magnetic Resonance in Medicine: An Official Journal of …, 2004