Enhancing gadoxetic acid-enhanced liver MRI: a synergistic approach with deep learning CAIPIRINHA-VIBE and optimized fat suppression techniques.

Autor: Wei H; Department of Radiology, Seoul National University Hospital, Seoul, 03080, Republic of Korea.; Department of Radiology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China., Yoon JH; Department of Radiology, Seoul National University Hospital, Seoul, 03080, Republic of Korea.; Department of Radiology, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea., Jeon SK; Department of Radiology, Seoul National University Hospital, Seoul, 03080, Republic of Korea., Choi JW; Department of Radiology, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea.; Department of Radiology, Armed Forces Yangju Hospital, Yangju, 482863, Republic of Korea., Lee J; Department of Radiology, Seoul National University Hospital, Seoul, 03080, Republic of Korea., Kim JH; Department of Radiology, Seoul National University Hospital, Seoul, 03080, Republic of Korea., Nickel MD; MR Application Predevelopment, Siemens Healthcare GmbH, Henkestr. 127, 91052, Erlangen, Germany., Song B; Department of Radiology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.; Department of Radiology, Sanya People's Hospital, Sanya, 572000, Hainan, China., Duan T; Department of Radiology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China., Lee JM; Department of Radiology, Seoul National University Hospital, Seoul, 03080, Republic of Korea. jmsh@snu.ac.kr.; Department of Radiology, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea. jmsh@snu.ac.kr.
Jazyk: angličtina
Zdroj: European radiology [Eur Radiol] 2024 Oct; Vol. 34 (10), pp. 6712-6725. Date of Electronic Publication: 2024 Mar 16.
DOI: 10.1007/s00330-024-10693-9
Abstrakt: Objective: To investigate whether a deep learning (DL) controlled aliasing in parallel imaging results in higher acceleration (CAIPIRINHA)-volumetric interpolated breath-hold examination (VIBE) technique can improve image quality, lesion conspicuity, and lesion detection compared to a standard CAIPIRINHA-VIBE technique in gadoxetic acid-enhanced liver MRI.
Methods: This retrospective single-center study included 168 patients who underwent gadoxetic acid-enhanced liver MRI at 3 T using both standard CAIPIRINHA-VIBE and DL CAIPIRINHA-VIBE techniques on pre-contrast and hepatobiliary phase (HBP) images. Additionally, high-resolution (HR) DL CAIPIRINHA-VIBE was obtained with 1-mm slice thickness on the HBP. Three abdominal radiologists independently assessed the image quality and lesion conspicuity of pre-contrast and HBP images. Statistical analyses involved the Wilcoxon signed-rank test for image quality assessment and the generalized estimation equation for lesion conspicuity and detection evaluation.
Results: DL and HR-DL CAIPIRINHA-VIBE demonstrated significantly improved overall image quality and reduced artifacts on pre-contrast and HBP images compared to standard CAIPIRINHA-VIBE (p < 0.001), with a shorter acquisition time (DL vs standard, 11 s vs 17 s). However, the former presented a more synthetic appearance (both p < 0.05). HR-DL CAIPIRINHA-VIBE showed superior lesion conspicuity to standard and DL CAIPIRINHA-VIBE on HBP images (p < 0.001). Moreover, HR-DL CAIPIRINHA-VIBE exhibited a significantly higher detection rate of small (< 2 cm) solid focal liver lesions (FLLs) on HBP images compared to standard CAIPIRINHA-VIBE (92.5% vs 87.4%; odds ratio = 1.83; p = 0.036).
Conclusion: DL and HR-DL CAIPIRINHA-VIBE achieved superior image quality compared to standard CAIPIRINHA-VIBE. Additionally, HR-DL CAIPIRINHA-VIBE improved the lesion conspicuity and detection of small solid FLLs. DL and HR-DL CAIPIRINHA-VIBE hold the potential clinical utility for gadoxetic acid-enhanced liver MRI.
Clinical Relevance Statement: DL and HR-DL CAIPIRINHA-VIBE hold promise as potential alternatives to standard CAIPIRINHA-VIBE in routine clinical liver MRI, improving the image quality and lesion conspicuity, enhancing the detection of small (< 2 cm) solid focal liver lesions, and reducing the acquisition time.
Key Points: • DL and HR-DL CAIPIRINHA-VIBE demonstrated improved overall image quality and reduced artifacts on pre-contrast and HBP images compared to standard CAIPIRINHA-VIBE, in addition to a shorter acquisition time. • DL and HR-DL CAIPIRINHA-VIBE yielded a more synthetic appearance than standard CAIPIRINHA-VIBE. • HR-DL CAIPIRINHA-VIBE showed improved lesion conspicuity than standard CAIPIRINHA-VIBE on HBP images, with a higher detection of small (< 2 cm) solid focal liver lesions.
(© 2024. The Author(s).)
Databáze: MEDLINE
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