Application of deep learning reconstruction in abdominal magnetic resonance cholangiopancreatography for image quality improvement and acquisition time reduction.
Journal
Journal of the Formosan Medical Association = Taiwan yi zhi
Series/Report No.
Journal of the Formosan Medical Association
Journal Volume
124
Journal Issue
12
Start Page
1141
End Page
1148
ISSN
0929-6646
Date Issued
2025-11-24
Author(s)
Yeh, Chen-Ya
Chang, Yu-Chien
Chen, Pohua
Lee, Chia-Wei
Shieh, Charng-Chyi
Lin, Chien-Yuan
DOI
10.1016/j.jfma.2024.10.017
Abstract
Purpose: To compare deep learning (DL)-based and conventional reconstruction through subjective and objective analysis and ascertain whether DL-based reconstruction improves the quality and acquisition speed of clinical abdominal magnetic resonance imaging (MRI). Methods: The 124 patients who underwent abdominal MRI between January and July 2021 were retrospectively studied. For each patient, two-dimensional axial T2-weighted single-shot fast spin-echo MRI images with or without fat saturation were reconstructed using DL-based and conventional methods. The subjective image quality scores and objective metrics, including signal-to-noise ratios (SNRs) and contrast-to-noise ratios (CNRs) of the images were analysed. An explorative analysis was performed to compare 20 patients’ MRI images with site routine settings, high-resolution settings and high-speed settings. Paired t tests and Wilcoxon signed-rank tests were used for subjective and objective comparisons. Results: A total of 144 patients were evaluated (mean age, 62.2 ± 14.1 years; 83 men). The MRI images reconstructed using DL-based methods had higher SNRs and CNRs than did those reconstructed using conventional methods (all p < 0.01). The subjective scores of the images reconstructed using DL-based methods were higher than those of the images reconstructed using conventional methods (p < 0.01), with significantly lower variation (p < 0.01). Exploratory analysis revealed that the DL-based reconstructions with thin slice thickness and higher temporal resolution had the highest image quality and were associated with the shortest scan times. Conclusions: DL-based reconstruction methods can be used to improve the quality with higher stability and accelerate the acquisition of abdominal MRI.
Subjects
Computer-assisted
Deep learning
Image processing
Magnetic resonance imaging
Publisher
Elsevier B.V.
Type
journal article