Simultaneous dual-nuclei imaging for motion corrected detection and quantification of 19F imaging agents

Area of Science:

• Medical Imaging
• Biomedical Engineering
• Radiology

Background:

• Fluorine MRI shows promise for molecular imaging but lacks anatomical context.
• Physiological motion during scans causes blurring and inaccurate quantification.
• Proton MRI is needed for spatial context, but simultaneous acquisition is challenging.

Purpose of the Study:

• To develop and demonstrate a method for simultaneous dual-nuclei MRI acquisition.
• To enable precise anatomical localization of fluorine signals using proton MRI.
• To implement motion correction and dual-resolution reconstruction for improved fluorine MRI.

Main Methods:

• Simultaneous acquisition of dual-nuclei (proton and fluorine) MR data.
• Utilizing proton signals for accurate motion correction of fluorine signals.
• Implementing dual-resolution reconstruction for nuclei-specific optimization.

Main Results:

• Efficient and precise anatomical localization of fluorine signals was achieved.
• Accurate motion correction based on contemporaneous proton signals was demonstrated.
• Feasibility of simultaneous dual-nuclei MRI motion correction and dual-resolution reconstruction was shown on a clinical 3 T system.

Conclusions:

• Simultaneous dual-nuclei MRI offers a robust solution for motion artifacts in fluorine imaging.
• This technique enhances the accuracy of molecularly targeted agent detection and quantification.
• The method has significant implications for diagnosis, therapy planning, and monitoring.