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Abbreviated MRI with optional multiphasic CT as an alternative to full-sequence MRI: LI-RADS validation in a HCC-screening cohort

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dc.contributor.authorPark, SH-
dc.contributor.authorKim, B-
dc.contributor.authorKim, SY-
dc.contributor.authorShim, YS-
dc.contributor.authorKim, JH-
dc.contributor.authorHuh, J-
dc.contributor.authorKim, HJ-
dc.contributor.authorKim, KW-
dc.contributor.authorLee, SS-
dc.date.accessioned2022-10-24T05:53:28Z-
dc.date.available2022-10-24T05:53:28Z-
dc.date.issued2020-
dc.identifier.issn0938-7994-
dc.identifier.urihttp://repository.ajou.ac.kr/handle/201003/22313-
dc.description.abstractOBJECTIVE: To compare the diagnostic performance of abbreviated MRI (AMRI) combined with multiphasic CT (mCT) with that of full-sequence gadoxetic acid-enhanced MRI (EOB-MRI) in a hepatocellular carcinoma (HCC)-screening cohort METHODS: Consecutive patients at risk of HCC who underwent EOB-MRI and mCT within 3 months for evaluation of new 0.5-3-cm hepatic observations were retrospectively recruited from 3 centers. An AMRI protocol comprising hepatobiliary phase, T2- and diffusion-weighted imaging, and dual-echo sequence was reconstituted from EOB-MRI. Two radiologists independently reviewed each observation in AMRI plus mCT (set 1) and EOB-MRI (set 2) per LI-RADS v2018. Per-lesion sensitivity, accuracy, and positive predictive value (PPV) for HCC were calculated and compared between image sets.

RESULTS: In 267 patients, 306 histologically confirmed observations (280 HCCs, 20 combined hepatocellular-cholangiocarcinomas, 1 cholangiocarcinoma, and 5 benignities) were assessed. Set 1 yielded higher sensitivity (96.4% vs. 92.9%, p = 0.013) and comparable accuracy (91.2% vs. 87.6%) and PPV (94.1% vs. 93.5%) to set 2 using LI-RADS category (LR)-4/5 criteria. The sets showed comparable sensitivity (66.4% vs. 70.4%), accuracy (67.7% vs. 70.6%), and PPV (97.4% vs. 96.6%) using LR-5 criteria. A similar substantial number of non-HCC malignancies were categorized as LR-4 or LR-5, as was the number of HCCs categorized as LR-M in both sets.

CONCLUSIONS: AMRI combined with mCT showed diagnostic performance similar or superior to that of EOB-MRI for HCC diagnosis using LI-RADS. Therefore, mCT holds potential as a sequential examination for HCC diagnosis in AMRI-detected hepatic observation in patients at risk of HCC.

KEY POINTS: • AMRI plus multiphasic CT showed comparable accuracy (91.2%) and PPV (94.1%) to full-sequence gadoxetic acid-enhanced MRI using LR-4/5 criteria. • AMRI plus multiphasic CT was significantly more sensitive than full-sequence gadoxetic acid-enhanced MRI (96.4% vs. 92.9%) using LR-4/5 criteria. • Multiphasic CT is a potential sequential modality for HCC diagnosis after AMRI.
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dc.language.isoen-
dc.subject.MESHAlgorithms-
dc.subject.MESHCarcinoma, Hepatocellular-
dc.subject.MESHDiffusion Magnetic Resonance Imaging-
dc.subject.MESHFemale-
dc.subject.MESHHumans-
dc.subject.MESHLiver-
dc.subject.MESHLiver Neoplasms-
dc.subject.MESHMale-
dc.subject.MESHMiddle Aged-
dc.subject.MESHMultidetector Computed Tomography-
dc.subject.MESHRetrospective Studies-
dc.titleAbbreviated MRI with optional multiphasic CT as an alternative to full-sequence MRI: LI-RADS validation in a HCC-screening cohort-
dc.typeArticle-
dc.identifier.pmid31858203-
dc.subject.keywordHepatocellular carcinoma-
dc.subject.keywordLiver-
dc.subject.keywordMagnetic resonance imaging-
dc.contributor.affiliatedAuthorKim, B-
dc.contributor.affiliatedAuthorHuh, J-
dc.type.localJournal Papers-
dc.identifier.doi10.1007/s00330-019-06546-5-
dc.citation.titleEuropean radiology-
dc.citation.volume30-
dc.citation.number4-
dc.citation.date2020-
dc.citation.startPage2302-
dc.citation.endPage2311-
dc.identifier.bibliographicCitationEuropean radiology, 30(4). : 2302-2311, 2020-
dc.embargo.liftdate9999-12-31-
dc.embargo.terms9999-12-31-
dc.identifier.eissn1432-1084-
dc.relation.journalidJ009387994-
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Radiology
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