CT/MRI technical pitfalls for diagnosis and treatment response assessment using LI-RADS and how to optimize.

Autor: Kamal O; Oregon Health and Science University, Portland, OR, USA. kamal@ohsu.edu., Haghshomar M; Northwestern University Feinberg School of Medicine, Chicago, IL, USA., Yang J; Royal Prince Alfred and Concord Hospitals, Sydney, NSW, Australia., Lalani T; University of Massachusetts Chan Medical School, Worcester, MA, USA., Bijan B; University of California Davis Medical Center, Sacramento, CA, USA., Yaghmai V; University of California, Irvine, Irvine, CA, USA., Mendiratta-Lala M; Michigan Medicine, Ann Arbor, MI, USA., Hong CW; University of California, San Francisco, San Francisco, CA, USA., Fowler KJ; Scripps Medical Group, San Diego, CA, USA., Sirlin CB; University of California, San Diego, San Diego, CA, USA., Kambadakone A; Massachusetts General Hospital, Boston, MA, USA., Lee J; University of Kentucky, Lexington, KY, USA., Borhani AA; Northwestern University Feinberg School of Medicine, Chicago, IL, USA., Fung A; Oregon Health and Science University, Portland, OR, USA.
Jazyk: angličtina
Zdroj: Abdominal radiology (New York) [Abdom Radiol (NY)] 2024 Oct 22. Date of Electronic Publication: 2024 Oct 22.
DOI: 10.1007/s00261-024-04632-x
Abstrakt: Hepatocellular carcinoma (HCC), the most common primary liver cancer, is a significant global health burden. Accurate imaging is crucial for diagnosis and treatment response assessment, often eliminating the need for biopsy. The Liver Imaging Reporting and Data System (LI-RADS) standardizes the interpretation and reporting of liver imaging for diagnosis and treatment response assessment, categorizing observations using defined categories that are based on the probability of malignancy or post-treatment tumor viability. Optimized imaging protocols are essential for accurate visualization and characterization of liver findings by LI-RADS. Common technical pitfalls, such as suboptimal postcontrast phase timing, and MRI-specific challenges like subtraction misregistration artifacts, can significantly reduce image quality and diagnostic accuracy. The use of hepatobiliary contrast agents introduces additional challenges including arterial phase degradation and suboptimal uptake in advanced cirrhosis. This review provides radiologists with comprehensive insights into the technical aspects of liver imaging for LI-RADS. We discuss common pitfalls encountered in routine clinical practice and offer practical solutions to optimize imaging techniques. We also highlight technical advances in liver imaging, including multi-arterial MR acquisition and compressed sensing. By understanding and addressing these technical aspects, radiologists can improve accuracy and confidence in the diagnosis and treatment response assessment for hepatocellular carcinoma.
(© 2024. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
Databáze: MEDLINE
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