Chemical shift selective MR imaging using a whole-body magnet

Area of Science:

• Medical Imaging
• Biophysics
• Radiology

Background:

• Proton magnetic resonance (MR) imaging is a vital diagnostic tool.
• Separating water and fat signals in MR images is crucial for accurate interpretation.
• Existing methods may be time-consuming or lack sufficient spectral resolution.

Purpose of the Study:

• To apply and evaluate a novel chemical shift selective (CHESS) MR imaging technique for separating water and fat resonances in human studies.
• To assess the feasibility and potential clinical utility of CHESS MR imaging.

Main Methods:

• A new method for separating water and fat resonances was applied.
• Whole-body MR imaging was performed on a 2.0 T system.
• Chemical shift selective (CHESS) MR imaging was utilized to acquire separate water or fat images.

Main Results:

• The CHESS MR imaging technique successfully separated water and fat resonances in human studies.
• Images of the human head and hip demonstrated the technique's effectiveness.
• The method requires a spectral resolution of approximately 1 ppm across the imaging region.

Conclusions:

• CHESS MR imaging is a highly promising technique for clinical investigations.
• It provides water or fat images efficiently within the time of conventional composite imaging.
• The technique is compatible with other imaging modalities and easily implementable on high-field MR systems.