Feasibility/clinical utility of half-Fourier single-shot turbo spin echo imaging combined with deep learning reconstruction in gynecologic magnetic resonance imaging.

Autor: Kirita M; Kyoto University, Kyoto, Japan., Himoto Y; Kyoto University, Kyoto, Japan. yhimoto@kuhp.kyoto-u.ac.jp., Kurata Y; Kyoto University, Kyoto, Japan., Kido A; University of Toyama, Toyama, Japan., Fujimoto K; Kyoto University, Kyoto, Japan., Abe H; Wakayama Medical University, Wakayama, Japan., Matsumoto Y; Kyoto University, Kyoto, Japan., Harada K; Kyoto University, Kyoto, Japan., Morita S; Kyoto University, Kyoto, Japan., Yamaguchi K; Kyoto University, Kyoto, Japan., Nickel D; Siemens (Germany), Munich, Germany., Mandai M; Kyoto University, Kyoto, Japan., Nakamoto Y; Kyoto University, Kyoto, Japan.
Jazyk: angličtina
Zdroj: Abdominal radiology (New York) [Abdom Radiol (NY)] 2024 Dec 18. Date of Electronic Publication: 2024 Dec 18.
DOI: 10.1007/s00261-024-04739-1
Abstrakt: Background: When antispasmodics are unavailable, the periodically rotated overlapping parallel lines with enhanced reconstruction (PROPELLER; called BLADE by Siemens Healthineers) or half Fourier single-shot turbo spin echo (HASTE) is clinically used in gynecologic MRI. However, their imaging qualities are limited compared to Turbo Spin Echo (TSE) with antispasmodics. Even with antispasmodics, TSE can be artifact-affected, necessitating a rapid backup sequence.
Purpose: This study aimed to investigate the utility of HASTE with deep learning reconstruction and variable flip angle evolution (iHASTE) compared to conventional sequences with and without antispasmodics.
Materials and Methods: This retrospective study included MRI scans without antispasmodics for 79 patients who underwent iHASTE, HASTE, and BLADE and MRI scans with antispasmodics for 79 case-control matched patients who underwent TSE. Three radiologists qualitatively evaluated image quality, robustness to artifacts, tissue contrast, and uterine lesion margins. Tissue contrast was also quantitatively evaluated.
Results: Quantitative evaluations revealed that iHASTE exhibited significantly superior tissue contrast to HASTE and BLADE. Qualitative evaluations indicated that iHASTE outperformed HASTE in overall quality. Two of three radiologists judged iHASTE to be significantly superior to BLADE, while two of three judged TSE to be significantly superior to iHASTE. iHASTE demonstrated greater robustness to artifacts than both BLADE and TSE. Lesion margins in iHASTE had lower scores than BLADE and TSE.
Conclusion: iHASTE is a viable clinical option in patients undergoing gynecologic MRI with anti-spasmodics. iHASTE may also be considered as a useful add-on sequence in patients undergoing MRI with antispasmodics.
Competing Interests: Declarations. Competing interest: Dominik Nickel is an employee of Siemens Healthcare.
(© 2024. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
Databáze: MEDLINE
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