A review on potential issues and challenges in MR imaging.

Area of Science:

• Medical Imaging
• Biophysics
• Engineering

Background:

• Magnetic Resonance Imaging (MRI) is a noninvasive diagnostic technique renowned for its exceptional soft tissue contrast.
• Recent advancements in ultra-high field strengths (≥7 Tesla) have significantly enhanced MRI signal-to-noise ratio and image resolution.

Purpose of the Study:

• To provide a comprehensive overview of Magnetic Resonance Imaging (MRI) systems, focusing on ultra-high field strengths.
• To detail the various subsystems, associated challenges, and limitations within advanced MRI technology.
• To highlight common artifacts and processing challenges in MRI.

Main Methods:

• Review of Magnetic Resonance Imaging (MRI) system components, including magnet, gradient, and radiofrequency (RF) subsystems.
• Discussion of data processing concepts and associated challenges in MRI.
• Identification and explanation of artifacts encountered in MRI.

Main Results:

• Ultra-high field MRI systems (≥7 Tesla) provide improved image quality through higher signal-to-noise and resolution.
• Detailed examination of magnet, gradient, RF coils, transceiver, and data processing subsystems.
• Identification of specific challenges and artifacts inherent to advanced MRI technology.

Conclusions:

• Advanced MRI systems, particularly at ultra-high fields, offer significant improvements in diagnostic imaging.
• Understanding the intricacies of MRI subsystems, data processing, and potential artifacts is vital for effective utilization.
• Continued research into overcoming MRI limitations is essential for future advancements in medical diagnostics.