J Korean Soc Radiol.  2024 Mar;85(2):345-362. 10.3348/jksr.2023.0067.

Advanced Abdominal MRI Techniques and Problem-Solving Strategies

• Lee Y
• Yoon S
• Park SH
• Nickel MD

• KMID: 2554495
• DOI: http://doi.org/10.3348/jksr.2023.0067

Abstract

MRI plays an important role in abdominal imaging because of its ability to detect and characterize focal lesions. However, MRI examinations have several challenges, such as comparatively long scan times and motion management through breath-holding maneuvers. Techniques for reducing scan time with acceptable image quality, such as parallel imaging, compressed sensing, and cutting-edge deep learning techniques, have been developed to enable problem-solving strategies. Additionally, free-breathing techniques for dynamic contrast-enhanced imaging, such as extra-dimensional-volumetric interpolated breath-hold examination, golden-angle radial sparse parallel, and liver acceleration volume acquisition Star, can help patients with severe dyspnea or those under sedation to undergo abdominal MRI. We aimed to present various advanced abdominal MRI techniques for reducing the scan time while maintaining image quality and free-breathing techniques for dynamic imaging and illustrate cases using the techniques mentioned above. A review of these advanced techniques can assist in the appropriate interpretation of sequences.

Keyword

Magnetic Resonance Imaging; MRI Scan; Deep Learning Reconstruction; Liver