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Advanced MRI techniques in abdominal imaging
Yoonhee Lee1, Sungjin Yoon1, Munyoung Paek2
1Department of Radiology, Gil Medical Center, Gachon University College of Medicine, 21, Namdong-daero 774beon-gil, Namdong-gu, Incheon, 21565, Republic of Korea.
Abstract:
Magnetic resonance imaging (MRI) is a crucial modality for abdominal imaging evaluation of focal lesions and tissue properties. However, several obstacles, such as prolonged scan times, limitations in patients' breath-hold capacity, and contrast agent-associated artifacts, remain in abdominal MR images. Recent techniques, including parallel imaging, three-dimensional acquisition, compressed sensing, and deep learning, have been developed to reduce the scan time while ensuring acceptable image quality or to achieve higher resolution without extending the scan duration. Quantitative measurements using MRI techniques enable the noninvasive evaluation of specific materials. A comprehensive understanding of these advanced techniques is essential for accurate interpretation of MRI sequences. Herein, we therefore review advanced abdominal MRI techniques.
Insights
Advanced magnetic resonance imaging (MRI) techniques shorten abdominal scan times and improve image resolution. Understanding these methods is key for accurate interpretation of abdominal MR images and lesion evaluation.
Area of Science:
- Radiology and Medical Imaging
- Biomedical Engineering
Background:
- Magnetic resonance imaging (MRI) is vital for evaluating abdominal focal lesions and tissue characteristics.
- Challenges in abdominal MRI include long scan durations, patient breath-hold limitations, and contrast agent artifacts.
Purpose of the Study:
- To review advanced abdominal MRI techniques designed to overcome current imaging limitations.
- To highlight methods that reduce scan time, enhance image quality, or increase resolution.
Main Methods:
- Review of recent advancements in abdominal MRI acquisition and processing.
- Discussion of techniques such as parallel imaging, 3D acquisition, compressed sensing, and deep learning.
- Emphasis on quantitative MRI for noninvasive material evaluation.
Main Results:
- Advanced techniques effectively reduce scan times while maintaining diagnostic image quality.
- New methods allow for higher resolution imaging without prolonging acquisition duration.
- Quantitative MRI provides noninvasive insights into tissue properties.
Conclusions:
- A thorough understanding of these advanced abdominal MRI techniques is essential for accurate clinical interpretation.
- These innovations are crucial for improving the efficiency and diagnostic capabilities of abdominal MRI.
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