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Yang R, Peng H, Pan J, Wan Q, Zou C, Hu F. Native and Gd-EOB-DTPA-Enhanced T1 mapping for Assessment of Liver Fibrosis in NAFLD: Comparative Analysis of Modified Look-Locker Inversion Recovery and Water-specific T1 mapping. Acad Radiol 2024:S1076-6332(24)00443-4. [PMID: 39043516 DOI: 10.1016/j.acra.2024.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 07/03/2024] [Accepted: 07/04/2024] [Indexed: 07/25/2024]
Abstract
RATIONALE AND OBJECTIVES To investigate the diagnostic performance of water-specific T1 mapping for staging liver fibrosis in a non-alcoholic fatty liver disease (NAFLD) rabbit model, in comparison to Modified Look-Locker Inversion recovery (MOLLI) T1 mapping. MATERIALS AND METHODS 60 rabbits were randomly divided into the control group (12 rabbits) and NAFLD model groups (eight rabbits per subgroup) corresponding to different durations of high-fat high cholesterol diet feeding. All rabbits underwent MRI examination including MOLLI T1 mapping and 3D multi-echo variable flip angle (VFAME- GRE) sequences were acquired before and 20 min after the administration of Gd- EOB-DTPA. Histological assessments were performed to evaluate steatosis, inflammation, ballooning, and fibrosis. Statistical analysis included the intraclass correlation coefficient, analysis of variance, spearman correlation, multiple linear regression, and receiver operating characteristic curve. RESULTS A moderate correlation was observed between conventional native T1 and MRI-PDFF (r = -0.513, P < 0.001), as well as between conventional native T1 and liver steatosis grades (r = -0.319, P = 0.016). However, no significant correlation was found between the native wT1 and PDFF (r = 0.137, P = 0.314), or between the native wT1 and steatosis grades (r = 0.106, P = 0.435). In the multiple regression analysis, liver fibrosis, and hepatocellular ballooning were identified as independent factors influencing native wT1 in this study (R2 =0.545, P < 0.05), while steatosis was independently associated with conventional native T1 (R2 =0.321, P < 0.05). The AUC values for native T1, native wT1, HBP T1, and HBP wT1 were 0.549(0.410-0.682), 0.811(0.684-0.903), 0.775(0.644-0.876), and 0.752(0.619-0.858) for F1 or higher, 0.581(0.441-0.711), 0.828(0.704-0.916), 0.832(0.708-0.919), and 0.854(0.734-0.934) for F2 or higher, respectively. CONCLUSION The native wT1 may provide a more reliable assessment of early liver fibrosis in the context of NAFLD compared to conventional native T1.
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Affiliation(s)
- Ru Yang
- Department of Radiology, The First Affiliated Hospital of Chengdu Medical College, No.278, Baoguang Road, Xindu District, Chengdu, Sichuan, China (R.Y., J.P., F.H.)
| | - Hao Peng
- Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Avenue, Nanshan District, Shenzhen, Guangdong, China (H.P., Q.W., C.Z.)
| | - Jing Pan
- Department of Radiology, The First Affiliated Hospital of Chengdu Medical College, No.278, Baoguang Road, Xindu District, Chengdu, Sichuan, China (R.Y., J.P., F.H.)
| | - Qian Wan
- Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Avenue, Nanshan District, Shenzhen, Guangdong, China (H.P., Q.W., C.Z.)
| | - Chao Zou
- Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Avenue, Nanshan District, Shenzhen, Guangdong, China (H.P., Q.W., C.Z.)
| | - Fubi Hu
- Department of Radiology, The First Affiliated Hospital of Chengdu Medical College, No.278, Baoguang Road, Xindu District, Chengdu, Sichuan, China (R.Y., J.P., F.H.).
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Eryuruk U, Tasdemir MN, Karasu HI, Aslan S. Comparison of the efficacy of the gadoxetic acid MRI-derived relative enhancement index (REI) and functional liver imaging score (FLIS) in predicting liver function: validation with Albumin-Bilirubin (ALBI) grade. Abdom Radiol (NY) 2024; 49:1456-1466. [PMID: 38653813 DOI: 10.1007/s00261-024-04324-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 03/18/2024] [Accepted: 03/29/2024] [Indexed: 04/25/2024]
Abstract
PURPOSE This study compared the predictive performance of the relative enhancement index (REI) derived from gadoxetic acid (GA)-enhanced MRI with that of the functional liver imaging score (FLIS) in estimating liver function among patients with chronic liver disease (CLD) or liver cirrhosis (LC) by validating them with the albumin-bilirubin (ALBI) grade. MATERIALS AND METHODS We retrospectively examined 166 patients (79 women, 87 men; 57.4 years) who were diagnosed with LC or CLD and underwent GA-enhanced MRI between August 2020 and September 2023. The enhancement ratio (ER) is calculated using the formula: ER = [hepatobiliary phase liver signal (SI HBP20)-precontrast liver signal (SI pre)]/SI pre. The REI is calculated using the formula: REI = Liver Volume (LV) × ER. FLIS was assigned from the sum of three HBP image features, each scored between 0 and 2: liver parenchymal enhancement, biliary contrast excretion, and portal vein sign. Receiver operating characteristic (ROC) curve analysis was performed to determine the optimal cutoff values of ER, REI, and FLIS in differentiating between ALBI grades. The area under the curve (AUC), accuracy, sensitivity, and specificity were calculated for REI and FLIS to distinguish the ALBI grades. Spearman's rank correlation was used to evaluate the ER, REI, and FLIS correlations between the ALBI grades. To evaluate inter-reader reliability for LV, ER, REI, and FLIS, intraclass correlation coefficient (ICC) was used. RESULTS ROC curve analysis showed that the optimal cutoff value of REI for predicting ALBI Grade 1 was 899-905 for readers 1 and 2 and 461-477 for ALBI Grade 3, respectively. REI performed best in predicting ALBI Grade 1, achieving an accuracy range of 94%-92.2%, sensitivity of 94.9%-94.1%, and specificity of 91.7%-87.5% for readers 1 and 2, respectively. All parameters showed high accuracy in distinguishing ALBI Grade 3 from other grades. However, REI outperformed the others, showing an accuracy range of 98.8%-97.6%, sensitivity of 94.4%-94.4%, and specificity of 99.3%-98% for readers 1 and 2, respectively. REI showed the best and very strong correlation with ALBI for both readers. CONCLUSION REI showed a very strong correlation with the ALBI grades for assessing liver function. It outperformed FLIS in predicting the ALBI grades, indicating its potential as a radiologic tool comparable to or better than FLIS in predicting liver function, especially given its dependence on liver volume.
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Affiliation(s)
- Uluhan Eryuruk
- Department of Radiology, Faculty of Medicine, Giresun University, Giresun, Turkey.
| | - Merve Nur Tasdemir
- Department of Radiology, Faculty of Medicine, Giresun University, Giresun, Turkey
| | - Halil Ibrahim Karasu
- Department of Radiology, Faculty of Medicine, Giresun University, Giresun, Turkey
| | - Serdar Aslan
- Department of Radiology, Faculty of Medicine, Giresun University, Giresun, Turkey
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Fischer AM, Lechea N, Coxson HO. This Is What Metabolic Dysfunction-Associated Steatotic Liver Disease Looks Like: Potential of a Multiparametric MRI Protocol. Semin Liver Dis 2024; 44:226-238. [PMID: 38806158 DOI: 10.1055/a-2334-8525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
Metabolic dysfunction-associated steatotic liver disease (MASLD) is a prevalent condition with a broad spectrum defined by liver biopsy. This gold standard method evaluates three features: steatosis, activity (ballooning and lobular inflammation), and fibrosis, attributing them to certain grades or stages using a semiquantitative scoring system. However, liver biopsy is subject to numerous restrictions, creating an unmet need for a reliable and reproducible method for MASLD assessment, grading, and staging. Noninvasive imaging modalities, such as magnetic resonance imaging (MRI), offer the potential to assess quantitative liver parameters. This review aims to provide an overview of the available MRI techniques for the three criteria evaluated individually by liver histology. Here, we discuss the possibility of combining multiple MRI parameters to replace liver biopsy with a holistic, multiparametric MRI protocol. In conclusion, the development and implementation of such an approach could significantly improve the diagnosis and management of MASLD, reducing the need for invasive procedures and paving the way for more personalized treatment strategies.
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Affiliation(s)
- Anja M Fischer
- Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Nazim Lechea
- Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Harvey O Coxson
- Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
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Yang R, Chen Z, Pan J, Yang S, Hu F. Non-contrast T1ρ dispersion versus Gd-EOB-DTPA-enhanced T1mapping for the risk stratification of non-alcoholic fatty liver disease in rabbit models. Magn Reson Imaging 2024; 107:130-137. [PMID: 38278311 DOI: 10.1016/j.mri.2024.01.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 01/21/2024] [Accepted: 01/23/2024] [Indexed: 01/28/2024]
Abstract
PURPOSE To investigate the diagnostic efficacy of T1ρ dispersion and Gd-EOB-DTPAenhanced T1mapping in the identification of early liver fibrosis (LF) and non-alcoholic steatohepatitis (NASH) in a non-alcoholic fatty liver disease (NAFLD) rabbit model induced by a high-fat diet using histopathological findings as the standard reference. METHODS A total of sixty rabbits were randomly allocated into the standard control group (n = 12) and the NAFLD model groups (8 rabbits per group) corresponding to different high-fat high cholesterol diet feeding weeks. All rabbits underwent noncontrast transverse T1ρ mapping with varying spin-locking frequencies (FSL = 0 Hz and 500 Hz), native T1 mapping, and Gd-EOB-DTPA-enhanced T1 mapping during the hepatobiliary phase. The histopathological findings were assessed based on the NASH CRN Scoring System. Statistical analyses were conducted using the intraclass correlation coefficient, analysis of variance, multiple linear regression, and receiver operating characteristics. RESULTS Except for native T1, T1ρ, T1ρ dispersion, HBP T1, and △T1 values significantly differed among different liver fibrosis groups (F = 14.414, 18.736, 10.15, and 9.799, respectively; all P < 0.05). T1ρ, T1ρ dispersion, HBP T1, and △T1 values also exhibited significant differences among different NASH groups (F = 4.138, 4.594, 21.868, and 22.678, respectively; all P < 0.05). In the multiple regression analysis, liver fibrosis was the only factor that independently influenced T1ρ dispersion (R2 = 0.746, P = 0.000). Among all metrics, T1ρ dispersion demonstrated the best area under curve (AUC) for identifying early LF (≥ F1 stage) and significant LF (≥ F2 stage) (AUC, 0.849 and 0.916, respectively). The performance of △T1 and HBP T1 (AUC, 0.948 and 0.936, respectively) were better than that of T1ρ and T1ρ dispersion (AUC, 0.762 and 0.769, respectively) for diagnosing NASH. CONCLUSION T1⍴ dispersion may be suitable for detecting liver fibrosis in the complex background of NAFLD, while Gd-EOB-DTPA enhanced T1 mapping is superior to nonenhanced T1⍴ mapping (T1⍴ and T1⍴ dispersion) for identifying NASH.
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Affiliation(s)
- Ru Yang
- Department of Radiology, The First Affiliated Hospital of Chengdu Medical College, No.278, Baoguang Road, Xindu District, Chengdu, Sichuan, China
| | - Zhongshan Chen
- Department of Radiology, The First Affiliated Hospital of Chengdu Medical College, No.278, Baoguang Road, Xindu District, Chengdu, Sichuan, China
| | - Jin Pan
- Department of Radiology, The First Affiliated Hospital of Chengdu Medical College, No.278, Baoguang Road, Xindu District, Chengdu, Sichuan, China
| | - Shimin Yang
- Shanghai United Imaging Healthcare Co., Ltd., No.2258, Chengbei Road, Shanghai, China
| | - Fubi Hu
- Department of Radiology, The First Affiliated Hospital of Chengdu Medical College, No.278, Baoguang Road, Xindu District, Chengdu, Sichuan, China.
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Sofue K, Shimada R, Ueshima E, Komatsu S, Yamaguchi T, Yabe S, Ueno Y, Hori M, Murakami T. Evaluation and Prediction of Post-Hepatectomy Liver Failure Using Imaging Techniques: Value of Gadoxetic Acid-Enhanced Magnetic Resonance Imaging. Korean J Radiol 2024; 25:24-32. [PMID: 38184766 PMCID: PMC10788604 DOI: 10.3348/kjr.2023.0507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 09/13/2023] [Accepted: 10/07/2023] [Indexed: 01/08/2024] Open
Abstract
Despite improvements in operative techniques and perioperative care, post-hepatectomy liver failure (PHLF) remains the most serious cause of morbidity and mortality after surgery, and several risk factors have been identified to predict PHLF. Although volumetric assessment using imaging contributes to surgical simulation by estimating the function of future liver remnants in predicting PHLF, liver function is assumed to be homogeneous throughout the liver. The combination of volumetric and functional analyses may be more useful for an accurate evaluation of liver function and prediction of PHLF than only volumetric analysis. Gadoxetic acid is a hepatocyte-specific magnetic resonance (MR) contrast agent that is taken up by hepatocytes via the OATP1 transporter after intravenous administration. Gadoxetic acid-enhanced MR imaging (MRI) offers information regarding both global and regional functions, leading to a more precise evaluation even in cases with heterogeneous liver function. Various indices, including signal intensity-based methods and MR relaxometry, have been proposed for the estimation of liver function and prediction of PHLF using gadoxetic acid-enhanced MRI. Recent developments in MR techniques, including high-resolution hepatobiliary phase images using deep learning image reconstruction and whole-liver T1 map acquisition, have enabled a more detailed and accurate estimation of liver function in gadoxetic acid-enhanced MRI.
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Affiliation(s)
- Keitaro Sofue
- Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Japan.
| | - Ryuji Shimada
- Center for Radiology and Radiation Oncology, Kobe University Hospital, Kobe, Japan
| | - Eisuke Ueshima
- Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shohei Komatsu
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takeru Yamaguchi
- Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shinji Yabe
- Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yoshiko Ueno
- Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Masatoshi Hori
- Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takamichi Murakami
- Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Japan
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Xue Y, Xiao B, Xia Z, Dai L, Xia Q, Zhong L, Zhu C, Zhu J. A New OATP-Mediated Hepatobiliary-Specific Mn(II)-Based MRI Contrast Agent for Hepatocellular Carcinoma in Mice: A Comparison With Gd-EOB-DTPA. J Magn Reson Imaging 2023; 58:926-933. [PMID: 36609994 DOI: 10.1002/jmri.28590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/27/2022] [Accepted: 12/27/2022] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Growing concerns about the safety of gadolinium (Gd)-based contrast agents have reinforced the need for the development of Gd-free MRI contrast agents (CAs) that are effective in imaging liver tumors. PURPOSE To evaluate the ability of Mn-BnO-TyEDTA MRI CA to detect hepatocellular carcinoma in a mouse model of implanted liver tumor. STUDY TYPE Prospective. ANIMAL MODEL Thirteen orthotopically implanted liver tumor mice. FIELD STRENGTH/SEQUENCE 3.0 T/precontrast and postcontrast T1-weighted fast spoiled gradient recalled echo and T2-weighted fast recovery fast spin-echo imaging with fat suppression. ASSESSMENT The relative enhancement ratio was calculated and statistically compared. Lesion detection in postcontrast images was analyzed by calculations of area under the curve (AUC, the increases in liver-to-tumor contrast-to-noise ratio [∆CNR] vs. time curve). Mn or Gd levels were measured in the liver and tumoral tissues by inductively coupled plasma-mass spectrometry. Tumor specimens were stained with hematoxylin and eosin (H&E) and the expression of organic anion transfer peptide (OATP)1B1 was evaluated by immunofluorescence (IF) staining and mean fluorescence intensity (MFI) was calculated. STATISTICAL TESTS Unpaired t-test and two-tailed paired t-test. P < 0.05 was considered statistical significance. RESULTS Mn-BnO-TyEDTA and Gd-EOB-DTPA demonstrated nearly identical enhancement patterns in the liver, tumor, and psoas muscle and no difference in lesion detection (AUC10-30, Mn = 851 ∆CR·min, AUC10-30, Gd = 823 ∆CR·min). A Significant higher concentration of metal (Mn or Gd) was found in the liver compared to the tumor ([Mn]liver = 0.88 ± 0.07 μmmol/g, [Mn]tumor = 0.49 ± 0.05 μmmol/g, [Gd]liver = 0.65 ± 0.07 μmmol/g, [Gd]tumor = 0.27 ± 0.04 μmmol/g). IF staining showed significantly decreased expression of OATP1B1 in the tumor core compared to the liver (MFItumor = 5.28 ± 1.54, MFIliver = 25.49 ± 3.41). DATA CONCLUSION Mn-BnO-TyEDTA can provide comparable hepatobiliary tumor contrast enhancement to Gd-EOB-DTPA. EVIDENCE LEVEL 1 TECHNICAL EFFICACY: Stage 1.
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Affiliation(s)
- Yuan Xue
- Medical Imaging Key Laboratory of Sichuan Province, Department of Oncology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- School of Basic Medical Sciences and Forensic Medicine, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Bin Xiao
- Medical Imaging Key Laboratory of Sichuan Province, Department of Oncology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Zhiyang Xia
- Medical Imaging Key Laboratory of Sichuan Province, Department of Oncology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- School of Basic Medical Sciences and Forensic Medicine, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Lixiong Dai
- Wenzhou Key Laboratory of Biophysics, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang, China
| | - Qian Xia
- Medical Imaging Key Laboratory of Sichuan Province, Department of Oncology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Lei Zhong
- Medical Imaging Key Laboratory of Sichuan Province, Department of Oncology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Chunrong Zhu
- Medical Imaging Key Laboratory of Sichuan Province, Department of Oncology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- School of Basic Medical Sciences and Forensic Medicine, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Jiang Zhu
- Medical Imaging Key Laboratory of Sichuan Province, Department of Oncology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- School of Pharmacy, North Sichuan Medical College, Nanchong, Sichuan, China
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Wang Q, Li C, Chen G, Feng K, Chen Z, Xia F, Cai P, Zhang L, Sparrelid E, Brismar TB, Ma K. Unsupervised Machine Learning of MRI Radiomics Features Identifies Two Distinct Subgroups with Different Liver Function Reserve and Risks of Post-Hepatectomy Liver Failure in Patients with Hepatocellular Carcinoma. Cancers (Basel) 2023; 15:3197. [PMID: 37370807 DOI: 10.3390/cancers15123197] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/09/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023] Open
Abstract
OBJECTIVE To identify subgroups of patients with hepatocellular carcinoma (HCC) with different liver function reserves using an unsupervised machine-learning approach on the radiomics features from preoperative gadoxetic-acid-enhanced MRIs and to evaluate their association with the risk of post-hepatectomy liver failure (PHLF). METHODS Clinical data from 276 consecutive HCC patients who underwent liver resections between January 2017 and March 2019 were retrospectively collected. Radiomics features were extracted from the non-tumorous liver tissue at the gadoxetic-acid-enhanced hepatobiliary phase MRI. The reproducible and non-redundant features were selected for consensus clustering analysis to detect distinct subgroups. After that, clinical variables were compared between the identified subgroups to evaluate the clustering efficacy. The liver function reserve of the subgroups was compared and the correlations between the subgroups and PHLF, postoperative complications, and length of hospital stay were evaluated. RESULTS A total of 107 radiomics features were extracted and 37 were selected for unsupervised clustering analysis, which identified two distinct subgroups (138 patients in each subgroup). Compared with subgroup 1, subgroup 2 had significantly more patients with older age, albumin-bilirubin grades 2 and 3, a higher indocyanine green retention rate, and a lower indocyanine green plasma disappearance rate (all p < 0.05). Subgroup 2 was also associated with a higher risk of PHLF, postoperative complications, and longer hospital stays (>18 days) than that of subgroup 1, with an odds ratio of 2.83 (95% CI: 1.58-5.23), 2.41(95% CI: 1.15-5.35), and 2.14 (95% CI: 1.32-3.47), respectively. The odds ratio of our method was similar to the albumin-bilirubin grade for postoperative complications and length of hospital stay (2.41 vs. 2.29 and 2.14 vs. 2.16, respectively), but was inferior for PHLF (2.83 vs. 4.55). CONCLUSIONS Based on the radiomics features of gadoxetic-acid-enhanced MRI, unsupervised clustering analysis identified two distinct subgroups with different liver function reserves and risks of PHLF in HCC patients. Future studies are required to validate our findings.
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Affiliation(s)
- Qiang Wang
- Division of Medical Imaging and Technology, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, 141 86 Stockholm, Sweden
- Division of Radiology, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Karolinska University Hospital, 141 86 Stockholm, Sweden
| | - Changfeng Li
- Institute of Hepatobiliary Surgery, Southwest Hospital, Army Medical University, Chongqing 400038, China
| | - Geng Chen
- Department of Hepatobiliary Surgery, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Kai Feng
- Institute of Hepatobiliary Surgery, Southwest Hospital, Army Medical University, Chongqing 400038, China
| | - Zhiyu Chen
- Institute of Hepatobiliary Surgery, Southwest Hospital, Army Medical University, Chongqing 400038, China
| | - Feng Xia
- Institute of Hepatobiliary Surgery, Southwest Hospital, Army Medical University, Chongqing 400038, China
| | - Ping Cai
- Department of Radiology, Southwest Hospital, Army Medical University, Chongqing 400038, China
| | - Leida Zhang
- Institute of Hepatobiliary Surgery, Southwest Hospital, Army Medical University, Chongqing 400038, China
| | - Ernesto Sparrelid
- Division of Surgery, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Karolinska University Hospital, 141 86 Stockholm, Sweden
| | - Torkel B Brismar
- Division of Medical Imaging and Technology, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, 141 86 Stockholm, Sweden
- Division of Radiology, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Karolinska University Hospital, 141 86 Stockholm, Sweden
| | - Kuansheng Ma
- Institute of Hepatobiliary Surgery, Southwest Hospital, Army Medical University, Chongqing 400038, China
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Kim NH, Kang JH. Inter-reader reliability of functional liver imaging score derived from gadoxetic acid-enhanced MRI: a meta-analysis. Abdom Radiol (NY) 2023; 48:886-894. [PMID: 36576517 DOI: 10.1007/s00261-022-03785-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 09/18/2022] [Accepted: 12/16/2022] [Indexed: 12/29/2022]
Abstract
PURPOSE This study aimed to systematically determine the inter-reader reliability of the functional liver imaging score (FLIS) and explore the factors affecting it. METHODS Original articles reporting the inter-reader reliability of FLIS derived from gadoxetic acid-enhanced magnetic resonance imaging (MRI) were systematically searched in the MEDLINE and EMBASE databases from January 2013 to June 2022. Data synthesis was performed to calculate the meta-analytic pooled estimates of the FLIS and its three subcategories, including enhancement quality score (EnQS), excretion quality score (ExQS), and portal vein sign quality score (PVsQS) using the DerSimonian-Laird random-effects model. To explore any cause of study heterogeneity, we conducted a meta-regression analysis. RESULTS Six studies with data from 1419 patients were included. The meta-analytic pooled inter-reader reliability of FLIS was 0.93 (95% confidence interval [CI], 0.88-0.98). That of the three FLIS subcategories were 0.93 (95% CI, 0.85-1.00), 0.95 (95% CI, 0.91-1.00), and 0.90 (95% CI, 0.81-0.99) for EnQS, ExQS, and PVsQS, respectively. The pooled FLIS data was moderately heterogenous, but heterogeneity was not associated with the study methodology, MRI-related factors, and reader experience. CONCLUSION The FLIS and its three subcategories showed almost perfect inter-reader reliability. Therefore, FLIS may be a reliable imaging parameter that reflects liver function and outcomes in patients with chronic liver disease. Further studies should be conducted to confirm any factors affecting the inter-reader reliability of FLIS.
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Affiliation(s)
- Nam Hee Kim
- Division of Gastroenterology, Department of Internal Medicine, Sungkyunkwan University School of Medicine, Kangbuk Samsung Hospital, Seoul, Korea
| | - Ji Hun Kang
- Department of Radiology, Hanyang University College of Medicine, Hanyang University Guri Hospital, 153 Gyeongchun-Ro, Guri-Si, 11923, Gyeonggi-Do, Korea.
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Wen B, Zhang Z, Fu K, Zhu J, Liu L, Gao E, Qi J, Zhang Y, Cheng J, Qu F, Zhu J. Value of pre-/post-contrast-enhanced T1 mapping and readout segmentation of long variable echo-train diffusion-weighted imaging in differentiating parotid gland tumors. Eur J Radiol 2023; 162:110748. [PMID: 36905715 DOI: 10.1016/j.ejrad.2023.110748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 01/29/2023] [Accepted: 02/13/2023] [Indexed: 02/25/2023]
Abstract
PURPOSE This study aimed to explore the value of pre-/post-contrast-enhanced T1 mapping and readout segmentation of long variable echo-train diffusion-weighted imaging (RESOLVE-DWI) for the differential diagnosis of parotid gland tumors. METHODS A total of 128 patients with histopathologically confirmed parotid gland tumors [86 benign tumors (BTs) and 42 malignant tumors (MTs)] were retrospectively recruited. BTs were further divided into pleomorphic adenomas (PAs, n = 57) and Warthin's tumors (WTs, n = 15). MRI examinations were performed before and after contrast injection to measure the longitudinal relaxation time (T1) value (T1p and T1e, respectively) and the apparent diffusion coefficient (ADC) value of the parotid gland tumors. The reduction in T1 (T1d) values and the percentage of T1 reduction (T1d%) were calculated. RESULTS The T1d and ADC values of the BTs were considerably higher than those of the MTs (all P <.05). The area under the curve (AUC) of the T1d and ADC values for differentiating between BTs and MTs of the parotid was 0.618 and 0.804, respectively (all P <.05). The AUC of the T1p, T1d, T1d%, and ADC values for differentiating between PAs and WTs was 0.926, 0.945, 0.925, and 0.996, respectively (all P >.05). The ADC and T1d% + ADC values performed better in differentiating between PAs and MTs than the T1p, T1d, and T1d% (AUC values: 0.902, 0.909, 0.660, 0.726, and 0.736, respectively). The T1p, T1d, T1d%, and T1d% + T1p values all had high diagnosis efficacy in differentiating WTs from MTs (AUC values: 0.865, 0.890, 0.852, and 0.897, respectively, all P >.05). CONCLUSION T1 mapping and RESOLVE-DWI can be used to differentiate parotid gland tumors quantitatively and can be complementary to each other.
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Affiliation(s)
- Baohong Wen
- Department of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Zanxia Zhang
- Department of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Kun Fu
- Department of Oral and Maxillofacial Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Jing Zhu
- Department of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Liang Liu
- Department of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Eryuan Gao
- Department of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Jinbo Qi
- Department of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Yong Zhang
- Department of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Jingliang Cheng
- Department of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.
| | - Feifei Qu
- MR Collaboration, Siemens Healthnieer Ltd., Beijing, China
| | - Jinxia Zhu
- MR Collaboration, Siemens Healthnieer Ltd., Beijing, China
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Updates on Quantitative MRI of Diffuse Liver Disease: A Narrative Review. BIOMED RESEARCH INTERNATIONAL 2022; 2022:1147111. [PMID: 36619303 PMCID: PMC9812615 DOI: 10.1155/2022/1147111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 12/10/2022] [Accepted: 12/12/2022] [Indexed: 12/29/2022]
Abstract
Diffuse liver diseases are highly prevalent conditions around the world, including pathological liver changes that occur when hepatocytes are damaged and liver function declines, often leading to a chronic condition. In the last years, Magnetic Resonance Imaging (MRI) is reaching an important role in the study of diffuse liver diseases moving from qualitative to quantitative assessment of liver parenchyma. In fact, this can allow noninvasive accurate and standardized assessment of diffuse liver diseases and can represent a concrete alternative to biopsy which represents the current reference standard. MRI approach already tested for other pathologies include diffusion-weighted imaging (DWI) and radiomics, able to quantify different aspects of diffuse liver disease. New emerging MRI quantitative methods include MR elastography (MRE) for the quantification of the hepatic stiffness in cirrhotic patients, dedicated gradient multiecho sequences for the assessment of hepatic fat storage, and iron overload. Thus, the aim of this review is to give an overview of the technical principles and clinical application of new quantitative MRI techniques for the evaluation of diffuse liver disease.
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Tang G, Liu J, Liu P, Huang F, Shao X, Chen Y, Xie A. Evaluation of liver function in patients with liver cirrhosis and chronic liver disease using functional liver imaging scores at different acquisition time points. Front Genet 2022; 13:1071025. [PMID: 36561314 PMCID: PMC9765309 DOI: 10.3389/fgene.2022.1071025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 11/15/2022] [Indexed: 12/12/2022] Open
Abstract
Purpose: This paper aims to explore whether functional liver imaging score (FLIS) based on Gd-EOB-DTPA-enhanced magnetic resonance imaging (MRI) images at 5, 10, and 15 min can predict liver function in patients with liver cirrhosis or chronic liver disease and its association with indocyanine green 15-min retention rate (ICG-R15), Child-Pugh (CP) score, albumin-bilirubin (ALBI) score, and model for end-stage liver disease (MELD) score. In addition, it also examines the inter- and intra-observer consistency of FLIS and three FLIS parameters at three different time points. Methods: This study included 110 patients with chronic liver disease (CLD) or liver cirrhosis (LC) (93 men, 17 women; mean ± standard deviation = 56.96 ± 10.16) between July 2019 and May 2022. FLIS was assigned in accordance with the sum of the three hepatobiliary phase characteristics, all of which were scored on the 0-2 ordinal scale, including the biliary excretion, hepatic enhancement and portal vein signal intensity. FLIS was calculated independently by two radiologists using transitional and hepatobiliary phase images at 5, 10, and 15 min after enhancement. The relationship between FLIS and three FLIS quality scores and the degree of liver function were evaluated using Spearman's rank correlation coefficient. The ability of FLIS to predict hepatic function was investigated using receiver operating characteristic (ROC) curves. Results: Intra- and inter-observer intraclass correlation coefficients (ICCs) (ICC = 0.937-0.978, 95% CI = 0.909-0.985) for FLIS at each time point indicated excellent agreement. At each time point, FLIS had a moderate negative association with liver function classification (r = [-0.641]-[-0.428], p < 0.001), and weak to moderate correlation with some other clinical parameters except for creatinine (p > 0.05). FLIS showed moderate discriminatory ability between different liver function levels. The area under the ROC curves (AUCs) of FLIS at 5, 10, and 15 min after enhancement to predict ICG-R15 of 10% or less were 0.838, 0.802, and 0.723, respectively; those for predicting ICG-R15 greater than 20% were 0.793, 0.824, and 0.756, respectively; those for predicting ICG-R15 greater than 40% were 0.728, 0.755, and 0.741, respectively; those for predicting ALBI grade 1 were 0.734, 0.761, and 0.691, respectively; those for predicting CP class A cirrhosis were 0.806, 0.821, and 0.829, respectively; those for predicting MELD score of 10 or less were 0.837, 0.877, and 0.837, respectively. No significant difference was found in the AUC of FLIS at 5, 10 and 15 min (p > 0.05). Conclusion: FLIS presented a moderate negative correlation with the classification system of hepatic function at a delay of 5, 10, and 15 min, and patients with LC or CLD were appropriately stratified based on ICG-R15, ALBI grade, MELD score, and CP classification. In addition, the use of FLIS to evaluate liver function can reduce the observation time of the hepatobiliary period.
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Affiliation(s)
- Guixiang Tang
- Department of Radiology, Hunan Provincial People’s Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, China
| | - Jianbin Liu
- Department of Radiology, Hunan Provincial People’s Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, China
| | - Peng Liu
- Department of Radiology, Hunan Provincial People’s Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, China
| | - Feng Huang
- Department of Radiology, Hunan Provincial People’s Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, China
| | - Xunuo Shao
- School of Mathematics and Statistics, Hunan Normal University, Changsha, China
| | - Yao Chen
- Department of Radiology, Hunan Provincial People’s Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, China
| | - An Xie
- Department of Radiology, Hunan Provincial People’s Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, China,*Correspondence: An Xie,
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Gadoxetic acid-enhanced MRI-derived functional liver imaging score (FLIS) and spleen diameter predict outcomes in ACLD. J Hepatol 2022; 77:1005-1013. [PMID: 35525337 DOI: 10.1016/j.jhep.2022.04.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 04/25/2022] [Accepted: 04/26/2022] [Indexed: 12/04/2022]
Abstract
BACKGROUND & AIMS Functional liver imaging score (FLIS) - derived from gadoxetic acid-enhanced MRI - correlates with liver function and independently predicts liver-related mortality in patients with chronic liver disease (CLD), while splenic craniocaudal diameter (SCCD) is a marker of portal hypertension. The aim of this study was to investigate the accuracy of a combination of FLIS and SCCD for predicting hepatic decompensation, acute-on-chronic liver failure (ACLF), and mortality in patients with advanced CLD (ACLD). METHODS We included 397 patients with CLD who underwent gadoxetic acid-enhanced liver MRI. The FLIS was calculated by summing the points (0-2) of 3 hepatobiliary-phase features: hepatic enhancement, biliary excretion, and portal vein signal intensity. Patients were stratified into 3 groups according to liver fibrosis severity and presence/history of hepatic decompensation: non-ACLD, compensated ACLD (cACLD), and decompensated ACLD (dACLD). RESULTS SCCD showed excellent intra- and inter-reader agreement. Importantly, SCCD was an independent risk factor for hepatic decompensation in patients with cACLD (per cm; adjusted hazard ratio [aHR] 1.13; 95% CI 1.04-1.23; p = 0.004). Patients with cACLD and a FLIS of 0-3 points and/or a SCCD of >13 cm were at increased risk of hepatic decompensation (aHR 3.07; 95% CI 1.43-6.59; p = 0.004). In patients with dACLD, a FLIS of 0-3 was independently associated with an increased risk of ACLF (aHR 2.81; 95% CI 1.16-6.84; p = 0.02), even after adjusting for other prognostic factors. Finally, a FLIS and SCCD-based algorithm was independently predictive of transplant-free mortality and stratified the probability of transplant-free survival (TFS) in ACLD (p <0.001): FLIS 4-6 and SCCD ≤13 cm (5-year TFS of 84%) vs. FLIS 4-6 and SCCD >13 cm (5-year TFS of 70%) vs. FLIS 0-3 (5-year TFS of 24%). CONCLUSION The FLIS and SCCD are simple imaging markers that provide complementary information for risk stratification in patients with compensated and decompensated ACLD. LAY SUMMARY Magnetic resonance imaging (MRI) can be used to assess the state of the liver. Previously the functional liver imaging score, which is based on MRI criteria, was developed as a measure of liver function and to predict the risk of liver-related complications or death. By combining this score with a measurement of spleen diameter, also using MRI, we generated an algorithm that could predict the risk of adverse liver-related outcomes in patients with advanced chronic liver disease.
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Portal hypertension may influence the registration of hypointensity of small hepatocellular carcinoma in the hepatobiliary phase in gadoxetic acid MR. Radiol Oncol 2022; 56:292-302. [PMID: 35776837 PMCID: PMC9400438 DOI: 10.2478/raon-2022-0024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 04/24/2022] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND The aim of the study was to analyze the association between the liver uptake of Gadolinium-ethoxybenzyl-diethylenetriamine penta-acetic acid (Gd-EOB-DTPA) in the hepatobiliary phase (HBP) in cirrhotic patients and the presence of clinically significant portal hypertension (CSPH), and how these features impact on hepatocellular carcinoma (HCC) detection in the HBP. PATIENTS AND METHODS Post-hoc analysis of a prospective cohort of 62 cirrhotic patients with newly US-detected nodule between 1-2 cm (study group). Twenty healthy subjects were used as control group. Qualitative and quantitative analysis of the liver contrast uptake in the HBP assessed by Relative Liver-Enhancement (RLE), Liver-Spleen (LSCR), Liver-Muscle (LMCR), and Liver-Kidney Contrast-Ratio (LKCR), Contrast Enhancement Index (CEI), and Hepatic Uptake (HUI), and biliary excretion, were registered. CSPH was confirmed invasively (HVPG > 10 mmHg) or by indirect parameters. The appearance of HCC at the HBP was analyzed. RESULTS Nineteen patients (30.6%) did not have CSPH. In 41 patients (66.1%) the final diagnosis was HCC. All indices were significantly higher in the control group, indicating a more intense HBP liver signal intensity compared to patients with cirrhosis, even if the comparison was restricted to patients with no CSPH. CSPH was associated to a lower rate of HCC hypointensity in the HBP (51.9% vs. 85.7% without CSPH, p = 0.004). CONCLUSIONS Liver uptake of Gd-EOB-DTPA at the HBP is decreased in cirrhosis even if the liver function is minimally impaired and it falls down significantly in patients with CSPH compromising the recognition of hypointense lesions. This fact may represent a limitation for the detection of small HCC in patients with cirrhosis and CSPH.
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MELIF, a Fully Automated Liver Function Score Calculated from Gd-EOB-DTPA-Enhanced MR Images: Diagnostic Performance vs. the MELD Score. Diagnostics (Basel) 2022; 12:diagnostics12071750. [PMID: 35885653 PMCID: PMC9318040 DOI: 10.3390/diagnostics12071750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 07/07/2022] [Accepted: 07/13/2022] [Indexed: 12/24/2022] Open
Abstract
In the management of patients with chronic liver disease, the assessment of liver function is essential for treatment planning. Gd-EOB-DTPA-enhanced MRI allows for both the acquisition of anatomical information and regional liver function quantification. The objective of this study was to demonstrate and evaluate the diagnostic performance of two fully automatically generated imaging-based liver function scores that take the whole liver into account. T1 images from the native and hepatobiliary phases and the corresponding T1 maps from 195 patients were analyzed. A novel artificial-intelligence-based software prototype performed image segmentation and registration, calculated the reduction rate of the T1 relaxation time for the whole liver (rrT1liver) and used it to calculate a personalized liver function score, then generated a unified score—the MELIF score—by combining the liver function score with a patient-specific factor that included weight, height and liver volume. Both scores correlated strongly with the MELD score, which is used as a reference for global liver function. However, MELIF showed a stronger correlation than the rrT1liver score. This study demonstrated that the fully automated determination of total liver function, regionally resolved, using MR liver imaging is feasible, providing the opportunity to use the MELIF score as a diagnostic marker in future prospective studies.
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Aslan S, Eryuruk U, Tasdemir MN, Cakir IM. Determining the efficacy of functional liver imaging score (FLIS) obtained from gadoxetic acid-enhanced MRI in patients with chronic liver disease and liver cirrhosis: the relationship between Albumin-Bilirubin (ALBI) grade and FLIS. Abdom Radiol (NY) 2022; 47:2325-2334. [PMID: 35672474 DOI: 10.1007/s00261-022-03557-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 04/26/2022] [Accepted: 05/13/2022] [Indexed: 11/01/2022]
Abstract
PURPOSE (1) To evaluate the efficacy of functional liver imaging score (FLIS) in predicting liver function on gadoxetic acid-enhanced MRI in patients with chronic liver disease (CLD) or liver cirrhosis (LC) and its relationship with ALBI grade. (2) To assess the intra-reader reliability and interreader agreement of readers with different levels of experience in abdominal imaging of FLIS. METHODS We retrospectively included 131 patients (70 men, 61 women; mean ± SD, 53.7 ± 14.6 years) with CLD and LC who underwent GA-enhanced MRI between November 2019 and March 2022. FLIS was assigned as a result of the sum of three hepatobiliary phase (HBP) images features, each scored 0-2: liver parenchymal enhancement, biliary contrast excretion, and portal vein sign. FLIS was calculated using HPB images independently by three radiologists with different experience. In addition, 50 randomly selected patients were reviewed a second time by a reader to assess intra-reader reliability. Patients were divided into the following three groups according to the albumin-bilirubin (ALBI) grade: ALBI grade 1, 2, and 3. We evaluated the correlation between ALBI grade and both FLIS and its parameters using Spearman's rank correlation for each reader. Receiver operating characteristic (ROC) curve analysis was performed to show the optimal cut-off value of FLIS to distinguish between ALBI grades. Intra-reader reliability and inter-reader agreement were evaluated by intraclass correlation coefficient (ICC). RESULTS FLIS and three FLIS parameters showed very strong correlation with ALBI grade for each readers (r = - 0.843 to 0.976, - 0.831 to 0.962, and - 0.819 to 0.902, respectively). ROC curve analysis showed that FLIS ≥ 5 was the optimal cutoff for prediction of ALBI grade 1 for each readers (sensitivity, 83.7% to 95.4%; specificity, 82.6% to 87%; accuracy, 88.6% to 93.6% and area under the curve (AUC), 0.882 to 0.917), and FLIS ≤ 3 was the optimal cutoff for distinguish ALBI grade 3 from other grades for each readers (sensitivity, 100%; specificity, 95.2% to 96%; accuracy, 95.4% to 96.2% and AUC, 0.974 to 0.994). Intra-reader reliability (ICC = 0.95; 95% CI 0.93-0.96) and inter-reader agreement (ICC = 0.85 to 0.90; 95% CI 0.82-0.97) for FLIS were excellent. CONCLUSION FLIS showed a very correlation with hepatic function level and can stratify the ALBI grades. This feature has demonstrated the potential of FLIS to be excellent radiological tools for predicting of liver function of CLD and LC patients in clinical practice. Also, the excellent agreement of FLIS among readers with different levels of experience indicates that it can be used with high accuracy and reproducibility regardless of experience.
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Affiliation(s)
- Serdar Aslan
- Department of Radiology, Faculty of Medicine, Giresun University, Giresun, Turkey.
| | - Uluhan Eryuruk
- Department of Radiology, Faculty of Medicine, Giresun University, Giresun, Turkey
| | - Merve Nur Tasdemir
- Department of Radiology, Faculty of Medicine, Giresun University, Giresun, Turkey
| | - Ismet Mirac Cakir
- Department of Radiology, Faculty of Medicine, Giresun University, Giresun, Turkey
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Okubo H, Atsukawa M, Okubo T, Ando H, Nakadera E, Ikejima K, Nagahara A. Gadoxetic acid-enhanced magnetic resonance imaging predicts hyperbilirubinemia induced by glecaprevir during hepatitis C virus treatment. Sci Rep 2022; 12:7847. [PMID: 35552472 PMCID: PMC9098462 DOI: 10.1038/s41598-022-11707-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Accepted: 04/25/2022] [Indexed: 02/01/2023] Open
Abstract
Glecaprevir is a substrate for organic anion-transporting polypeptide (OATP) 1B1/1B3, which transports bilirubin. Hyperbilirubinemia is an adverse event during anti-hepatitis C virus treatment with glecaprevir and pibrentasvir. Gadoxetic acid is also transported by OATP1B1/1B3, and we aimed to evaluate whether gadoxetic acid-enhanced magnetic resonance (MR) imaging was associated with glecaprevir trough concentrations (Ctrough). We further determined whether this was predictive of hyperbilirubinemia development in a cohort of 33 patients. The contrast enhancement index (CEI), a measure of hepatic enhancement effect on the hepatobiliary image, was assessed. Glecaprevir Ctrough was determined 7 days after administration. Five of the 33 patients (15%) developed Common Terminology Criteria for Adverse Events grade ≥ 2 hyperbilirubinemia. We found a negative relationship between CEI and Ctrough (r = − 0.726, p < 0.001). The partial correlation coefficient between CEI and Ctrough was − 0.654 (p < 0.001), while excluding the effects of albumin, FIB-4 index, and indirect bilirubin at baseline. The Ctrough was significantly higher in patients with hyperbilirubinemia than in those without (p = 0.008). In multivariate analysis, CEI ≤ 1.71 was an independent factor influencing the development of hyperbilirubinemia (p = 0.046). Our findings indicate that gadoxetic acid MR imaging can help predict glecaprevir concentration and development of hyperbilirubinemia.
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Affiliation(s)
- Hironao Okubo
- Department of Gastroenterology, Juntendo University Nerima Hospital, 3-1-10 Takanodai, Nerima-ku, Tokyo, 177-8521, Japan.
| | - Masanori Atsukawa
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School Chiba Hokusoh Hospital, 1715 Kamagari, Inzai, Chiba, 270-1694, Japan.,Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8603, Japan
| | - Tomomi Okubo
- Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School Chiba Hokusoh Hospital, 1715 Kamagari, Inzai, Chiba, 270-1694, Japan
| | - Hitoshi Ando
- Department of Cellular and Molecular Function Analysis, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8640, Japan
| | - Eisuke Nakadera
- Department of Gastroenterology, Juntendo University Nerima Hospital, 3-1-10 Takanodai, Nerima-ku, Tokyo, 177-8521, Japan
| | - Kenichi Ikejima
- Department of Gastroenterology, Graduate School of Medicine, Juntendo University, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Akihito Nagahara
- Department of Gastroenterology, Graduate School of Medicine, Juntendo University, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
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Simeth J, Aryal M, Owen D, Cuneo K, Lawrence TS, Cao Y. Gadoxetic Acid Uptake Rate as a Measure of Global and Regional Liver Function as Compared to Indocyanine Green Retention, Albumin-Bilirubin Score, and Portal Venous Perfusion. Adv Radiat Oncol 2022; 7:100942. [PMID: 35496263 PMCID: PMC9048078 DOI: 10.1016/j.adro.2022.100942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 02/26/2022] [Indexed: 11/27/2022] Open
Abstract
Purpose Global and regional liver function assessments are important for defining the magnitude and spatial distribution of dose to preserve functional liver parenchyma and reduce incidence of hepatotoxicity from radiation therapy for intrahepatic cancer treatment. This individualized liver function-guided radiation therapy strategy is critical for patients with heterogeneous and poor liver function, often observed in cirrhotic patients treated for hepatocellular carcinoma. This study aimed to validate k1 as a measure of global and regional function through comparison with 2 well-regarded global function measures: indocyanine green retention (ICGR) and albumin-bilirubin (ALBI). Methods and Materials Seventy-nine dynamic gadoxetic acid enhanced magnetic resonance imaging scans were acquired in 40 patients with hepatocellular carcinoma in institutional review board approved prospective protocols. Portal venous perfusion (kpv) was quantified from gadoxetic acid enhanced magnetic resonance imaging using a dual-input 2-compartment model, and gadoxetic acid uptake rate (k1) was fitted using a linearized single-input 2-compartment model chosen for robust k1 estimation. Four image-derived measures of global liver function were tested: (1) mean k1 multiplied by liver volume (k1VL) (functional volume), (2) mean k1 multiplied by blood distribution volume (k1Vdis), (3) mean kpv, and (4) liver volume (VL). The measure's correlation with corresponding ICGR and ALBI tests was assessed using linear regression. Voxel-wise similarity between k1 and kpv was compared using Spearman ranked correlation. Results Significant correlations (P < .05) with ICGR and ALBI were found for k1VL, k1Vdis, and VL (in order of strength), but not for mean kpv. The mean ranked correlation coefficient between k1 and kpv maps was 0.09. k1 and kpv maps were predominantly mismatched in patients with poor liver function. Conclusions The metric combining function and liver volume (k1VL) was a stronger measure of global liver function compared with perfusion or liver volume alone, especially in patients with poor liver function. Gadoxetic acid uptake rate is promising for both global and regional liver function.
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Affiliation(s)
- Josiah Simeth
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI
- Biomedical Engineering, University of Michigan, Ann Arbor, MI
- Department of Medical Physics, Memorial Sloan Kettering, New York, NY
- Corresponding author: Josiah Simeth, PhD
| | - Madhava Aryal
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI
| | - Dawn Owen
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN
| | - Kyle Cuneo
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI
| | | | - Yue Cao
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI
- Biomedical Engineering, University of Michigan, Ann Arbor, MI
- Department of Radiology, University of Michigan, Ann Arbor, MI
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Pastor CM, Joly F, Vilgrain V, Millet P. Concentrations and pharmacokinetic parameters of MRI and SPECT hepatobiliary agents in rat liver compartments. Eur Radiol Exp 2021; 5:42. [PMID: 34545428 PMCID: PMC8452805 DOI: 10.1186/s41747-021-00236-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 07/28/2021] [Indexed: 11/10/2022] Open
Abstract
Background In hepatobiliary imaging, systems detect the total amount of agents originating from extracellular space, bile canaliculi, and hepatocytes. They add in situ concentration of each compartment corrected by its respective volume ratio to provide liver concentrations. In vivo contribution of each compartment to liver concentration is inaccessible. Our aim was to quantify the compartmental distribution of two hepatobiliary agents in an ex vivo model and determine how their liver extraction ratios and cholestasis (livers lacking canalicular transporters) might modify it. Methods We perfused labelled gadobenate dimeglumine (Bopta, 200 μM, 7% liver extraction ratio) and mebrofenin (Meb, 64 μM, 94% liver extraction ratio) in normal (n = 18) and cholestatic (n = 6) rat livers. We quantified liver concentrations with a gamma counter placed over livers. Concentrations in hepatocytes and bile canaliculi were calculated. Mann-Whitney and Kruskal-Wallis tests were used. Results Hepatocyte concentrations were 2,043 ± 333 μM (Meb) versus 360 ± 69 μM (Bopta, p < 0.001). Meb extracellular concentrations did not contribute to liver concentrations (1.3 ± 0.3%). The contribution of Bopta extracellular concentration was 12.4 ± 1.9% (p < 0.001 versus Meb). Contribution of canaliculi was similar for both agents (16%). Cholestatic livers had no Bopta in canaliculi but their hepatocyte concentrations increased in comparison to normal livers. Conclusion Hepatocyte concentrations are correlated to liver extraction ratios of hepatobiliary agents. When Bopta is not present in canaliculi of cholestatic livers, hepatocyte concentrations increase in comparison to normal livers. This new understanding extends the interpretation of clinical liver images.
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Affiliation(s)
- Catherine M Pastor
- Centre de recherche sur l'inflammation, Inserm, U1149, CNRS, ERL8252, Université de Paris, F-75006, Paris, France. .,Department of Radiology, University Hospital of Geneva, Rue Gabrielle-Perret-Gentil, 4, 1205, Geneva, Switzerland.
| | - Florian Joly
- Centre de recherche sur l'inflammation, Inserm, U1149, CNRS, ERL8252, Université de Paris, F-75006, Paris, France
| | - Valérie Vilgrain
- Centre de recherche sur l'inflammation, Inserm, U1149, CNRS, ERL8252, Université de Paris, F-75006, Paris, France.,Department of Radiology, Hôpital Beaujon, Hôpitaux Paris Nord Val de Seine (AP-HP), 92110, Clichy, France
| | - Philippe Millet
- Department of Psychiatry, University Hospital of Geneva, Geneva, Switzerland.,Department of Psychiatry, Faculty of Medicine, University of Geneva, Geneva, Switzerland
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19
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Li J, Cao B, Bi X, Chen W, Wang L, Du Z, Zhang X, Yu X. Evaluation of liver function in patients with chronic hepatitis B using Gd-EOB-DTPA-enhanced T1 mapping at different acquisition time points: a feasibility study. Radiol Med 2021; 126:1149-1158. [PMID: 34105102 DOI: 10.1007/s11547-021-01382-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 05/25/2021] [Indexed: 01/18/2023]
Abstract
PURPOSE This study aimed to explore the impact of different acquisition times on the evaluation of liver function levels in chronic hepatitis B using Gd-EOB-DTPA-enhanced T1 positioning technology under 3.0 Tesla magnetic resonance imaging (MRI). METHODS A total of 146 patients with chronic hepatitis B (CHB) were classified into four groups as follows: chronic hepatitis B without liver cirrhosis (CH, 22 cases), liver cirrhosis with Child-Pugh classification A (LCA 63 cases), Child-Pugh B (LCB 47 cases) and Child-Pugh C (LCC 14 cases). Normal liver function (NLF) group was composed of 23 persons who had healthy liver and no medical histories of hepatitis. T1 mapping images were performed before and after administration of Gd-EOB-DPTA using Look-Locker sequence. Changes in T1 relaxation time (T1rt), the reduction rate of T1 relaxation time (ΔT1) and the increase in T1 relaxation rate (ΔR1) of liver over time (at 5, 10, 15 and 20 min) were investigated and compared among all five groups using a one-way analysis of variance (ANOVA). The Spearman's rank correlation coefficient (r) was used to show the correlations of these parameters in different liver function groups. RESULTS In the NLF, CH, LCA and LCB groups, postT1 gradually decreased, while the ΔT1 and ΔR1 gradually increased with time. The parameters were compared between different liver function levels at the same time point, and the differences were statistically significant except for NLF-CH, NLF-LCA and CH-LCA. There was no significant difference in the area under the ROC curve of other parameters at 10, 15 and 20 min. At each time point, no correlation was found between preT1rt and the degrees of liver function. PostT1rt was positively correlated with liver function classification, while ΔT1 and ΔR1 were negatively correlated with liver function classification. CONCLUSION Gd-EOB-DTPA-enhanced T1 mapping magnetic resonance imaging is beneficial to assess liver function. Using the Gd-EOB-DTPA to enhance T1 mapping imaging to assess liver function can shorten the observation time of the hepatobiliary period and 10 min after enhancement may be the best time point.
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Affiliation(s)
- Jiamin Li
- Department of Medical Imaging, Zhuhai People's Hospital, Zhuhai Hospital Affiliated With Jinan University, Zhuhai, 519000, Guangdong, People's Republic of China
| | - Boling Cao
- Department of Medical Imaging, Zhuhai People's Hospital, Zhuhai Hospital Affiliated With Jinan University, Zhuhai, 519000, Guangdong, People's Republic of China
| | - Xinjun Bi
- Department of Radiology, Affiliated Matern and Child Care Hospital of Nantong University, Nantong, 226000, Jiangsu, People's Republic of China
| | - Weipeng Chen
- Department of Medical Imaging, Zhuhai People's Hospital, Zhuhai Hospital Affiliated With Jinan University, Zhuhai, 519000, Guangdong, People's Republic of China
| | - Lanjing Wang
- Department of Medical Imaging, Zhuhai People's Hospital, Zhuhai Hospital Affiliated With Jinan University, Zhuhai, 519000, Guangdong, People's Republic of China
| | - Zhongli Du
- Department of Medical Imaging, Zhuhai People's Hospital, Zhuhai Hospital Affiliated With Jinan University, Zhuhai, 519000, Guangdong, People's Republic of China
| | - Xueqin Zhang
- Department of Radiology, Affiliated Nantong Hospital 3 of Nantong University, Nantong, 226000, Jiangsu, People's Republic of China.
| | - Xiangrong Yu
- Department of Medical Imaging, Zhuhai People's Hospital, Zhuhai Hospital Affiliated With Jinan University, Zhuhai, 519000, Guangdong, People's Republic of China.
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20
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Stinnett G, Taheri N, Villanova J, Bohloul A, Guo X, Esposito EP, Xiao Z, Stueber D, Avendano C, Decuzzi P, Pautler RG, Colvin VL. 2D Gadolinium Oxide Nanoplates as T 1 Magnetic Resonance Imaging Contrast Agents. Adv Healthc Mater 2021; 10:e2001780. [PMID: 33882196 DOI: 10.1002/adhm.202001780] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 02/18/2021] [Indexed: 12/21/2022]
Abstract
Millions of people a year receive magnetic resonance imaging (MRI) contrast agents for the diagnosis of conditions as diverse as fatty liver disease and cancer. Gadolinium chelates, which provide preferred T1 contrast, are the current standard but face an uncertain future due to increasing concerns about their nephrogenic toxicity as well as poor performance in high-field MRI scanners. Gadolinium-containing nanocrystals are interesting alternatives as they bypass the kidneys and can offer the possibility of both intracellular accumulation and active targeting. Nanocrystal contrast performance is notably limited, however, as their organic coatings block water from close interactions with surface Gadoliniums. Here, these steric barriers to water exchange are minimized through shape engineering of plate-like nanocrystals that possess accessible Gadoliniums at their edges. Sulfonated surface polymers promote second-sphere relaxation processes that contribute remarkable contrast even at the highest fields (r1 = 32.6 × 10-3 m Gd-1 s-1 at 9.4 T). These noncytotoxic materials release no detectable free Gadolinium even under mild acidic conditions. They preferentially accumulate in the liver of mice with a circulation half-life 50% longer than commercial agents. These features allow these T1 MRI contrast agents to be applied for the first time to the ex vivo detection of nonalcoholic fatty liver disease in mice.
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Affiliation(s)
- Gary Stinnett
- Department of Molecular Physiology and Biophysics Baylor College of Medicine Houston TX 77030 USA
| | - Nasim Taheri
- Departments of Chemistry and Chemical and Biomolecular Engineering Rice University Houston TX 77005 USA
| | - Jake Villanova
- Departments of Chemistry and Engineering Brown University Providence RI 02912 USA
| | - Arash Bohloul
- Departments of Chemistry and Chemical and Biomolecular Engineering Rice University Houston TX 77005 USA
| | - Xiaoting Guo
- Departments of Chemistry and Engineering Brown University Providence RI 02912 USA
| | - Edward P. Esposito
- Departments of Chemistry and Engineering Brown University Providence RI 02912 USA
| | - Zhen Xiao
- Departments of Chemistry and Engineering Brown University Providence RI 02912 USA
| | - Deanna Stueber
- Departments of Chemistry and Engineering Brown University Providence RI 02912 USA
| | - Carolina Avendano
- Departments of Chemistry and Chemical and Biomolecular Engineering Rice University Houston TX 77005 USA
| | - Paolo Decuzzi
- Department of Translational Imaging and Department of Nanomedicine The Methodist Hospital Research Institute Houston TX 77030 USA
- Laboratory of Nanotechnology for Precision Medicine Fondazione Istituto Italiano di Tecnologia Genoa 16163 Italy
| | - Robia G. Pautler
- Department of Molecular Physiology and Biophysics Baylor College of Medicine Houston TX 77030 USA
| | - Vicki L. Colvin
- Departments of Chemistry and Engineering Brown University Providence RI 02912 USA
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21
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Arutyunyants DE, Khovrin VV, Galyan TN, Kulichkin AS, Tarba NS, Filin AV, Metelin AV. [Magnetic resonance imaging in liver function analysis. Modern objective reality]. Khirurgiia (Mosk) 2021:89-94. [PMID: 34032794 DOI: 10.17116/hirurgia202106289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Chronic liver disease is a serious worldwide problem because its progression is accompanied by liver fibrosis and cirrhosis at the terminal stages. Primary diagnosis and dynamic assessment of liver fibrosis are essential to determine the prognosis of disease and optimal treatment strategy. Long-term world experience in the use of gadoxetic acid (primovist, eovist) for diagnosis of liver diseases confirms its hepatotropic properties. Thus, magnetic resonance imaging (MRI) in hepatobiliary phase of contrast enhancement is valuable for differential diagnosis of focal liver lesions and assessment of liver structure and fibrotic changes. This review is devoted to the most common methods of contrast-enhanced MRI for assessment of liver function and correlation between severity of diffuse structural liver changes and gadoxetic acid accumulation in liver parenchyma. There is no a single method for MRI-based analysis of liver function that is confirmed by active researches in this direction. It was found that liver biopsy can by unnecessary in some cases if contrast-enhanced MRI with gadoxetic acid is available. The advantage of gadoxetic acid is also elimination properties. Indeed, biliary excretion ensures T1-weighted MR-cholangiography for additional assessment of patency, function and anatomy of the bile ducts. However, there are still several questions in this area that necessitates further research.
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Affiliation(s)
| | - V V Khovrin
- Petrovsky Russian Scientific Center of Surgery, Moscow, Russia
| | - T N Galyan
- Petrovsky Russian Scientific Center of Surgery, Moscow, Russia
| | - A S Kulichkin
- Petrovsky Russian Scientific Center of Surgery, Moscow, Russia
| | - N S Tarba
- Petrovsky Russian Scientific Center of Surgery, Moscow, Russia
| | - A V Filin
- Petrovsky Russian Scientific Center of Surgery, Moscow, Russia
| | - A V Metelin
- Petrovsky Russian Scientific Center of Surgery, Moscow, Russia
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22
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Bi XJ, Zhang XQ, Zhang T, Xu L, Huang AN, Liu MT, Jiang JF, Chen WB. Quantitative assessment of liver function with hepatocyte fraction: Comparison with T1 relaxation-based indices. Eur J Radiol 2021; 141:109779. [PMID: 34029932 DOI: 10.1016/j.ejrad.2021.109779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 05/11/2021] [Accepted: 05/16/2021] [Indexed: 11/26/2022]
Abstract
PURPOSE This study aimed to assess the use of hepatocyte fraction in gadoxetic acid-enhanced magnetic resonance imaging (MRI) for quantitatively evaluating the liver function in comparison with T1 relaxation-based indices. METHODS This retrospective study included 79 patients with chronic liver disease, who were divided into 2 groups based on the results of the indocyanine green retention test (ICG). All patients underwent a gadoxetic acid-enhanced MRI of the liver. Pre- and post-contrast Look-Locker sequences were used 20 min after gadoxetic acid administration to acquire T1 mapping. Two readers independently identified and measured the MRI parameters [five T1 relaxation-based indices (T1pre, T1post, rrT1, R1post/R1pre and ΔR1) and two hepatocyte fraction indices (HeF and KHep)]. An Independent-samples t test was used to compare each parameter for the two groups. Pearson correlation analysis was used to analyze the correction in each parameter and 15-minute ICG retention rate (ICG-R15). Receiver operating characteristic analyses were performed to differentiate the diagnostic performance of each parameter in ICG-R15 ≤ 20 % and ICG-R15 > 20 % groups. RESULTS T1pre and T1post were significantly lower in the ICG-R15 ≤ 20 % group than in the ICG-R15 > 20 % group (P < 0.05). rrT1, R1post/R1pre, ΔR1, HeF, and KHep were significantly higher in the ICG-R15 ≤ 20 % group than in the ICG-R15 > 20 % group (P < 0.05). The correction coefficients between T1pre, T1post, rrT1, R1post/R1pre, ΔR1, HeF, KHep, and ICG-R15 were 0.343, 0.783, -0.833, -0.781, -0.803, -0.819, and -0.832, respectively. The area under the curves (AUCs) of T1pre, T1post, rrT1, R1post/R1pre, ΔR1, HeF, and KHep in assessing the ICG-R15>20 % groups were 0.761, 0.945, 0.912, 0.912, 0.948, 0.945, and 0.950, respectively. KHep had the highest AUC, sensitivity, and specificity. CONCLUSION Hepatocyte fraction based on gadoxetic acid-enhanced T1-mapping MRI is an efficient diagnostic tool for the quantitative evaluation of liver function.
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Affiliation(s)
- Xin-Jun Bi
- Department of Radiology, Affiliated Matern & Child Care Hospital of Nantong University, Nantong, 226000, Jiangsu, China
| | - Xue-Qin Zhang
- Department of Radiology, Affiliated Nantong Hospital 3 of Nantong University, Nantong, 226000, Jiangsu, China.
| | - Tao Zhang
- Department of Radiology, Affiliated Nantong Hospital 3 of Nantong University, Nantong, 226000, Jiangsu, China
| | - Lei Xu
- Department of Radiology, Affiliated Nantong Hospital 3 of Nantong University, Nantong, 226000, Jiangsu, China
| | - Ai-Na Huang
- Department of Radiology, Affiliated Nantong Hospital 3 of Nantong University, Nantong, 226000, Jiangsu, China
| | - Mao-Tong Liu
- Department of Radiology, Affiliated Nantong Hospital 3 of Nantong University, Nantong, 226000, Jiangsu, China
| | - Ji-Feng Jiang
- Department of Radiology, Affiliated Nantong Hospital 3 of Nantong University, Nantong, 226000, Jiangsu, China
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23
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Lee HJ, Hong SB, Lee NK, Kim S, Seo HI, Kim DU, Han SY, Choo KS. Validation of functional liver imaging scores (FLIS) derived from gadoxetic acid-enhanced MRI in patients with chronic liver disease and liver cirrhosis: the relationship between Child-Pugh score and FLIS. Eur Radiol 2021; 31:8606-8614. [PMID: 33881570 DOI: 10.1007/s00330-021-07955-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 03/15/2021] [Accepted: 03/26/2021] [Indexed: 02/06/2023]
Abstract
OBJECTIVES To validate the functional liver imaging score (FLIS) for prediction of hepatic function in gadoxetic acid-enhanced MRI. METHODS We retrospectively identified 134 patients (88 men, 46 women; mean age, 58.8 years) between January 2015 and December 2018 with the following inclusion criteria: patients diagnosed with liver cirrhosis or chronic liver disease (CLD) who underwent gadoxetic acid-enhanced MRI. Three parameters on hepatobiliary phase images were evaluated for FLIS: liver parenchymal enhancement, biliary excretion, and signal intensity of the portal vein. Patients were classified as CLD (n = 11), Child-Pugh (CP) class A (n = 87), CP B (n = 22), or CP C (n = 14). We assessed the correlation between CP score and both FLIS and its components using Spearman rank correlation. Receiver operating characteristic (ROC) curve analysis was performed to demonstrate the cutoff value of FLIS for differentiating between CP classes. The associations between patient characteristics, serum markers, FLIS, and hepatic decompensation were evaluated with Cox proportional hazard models. RESULTS FLIS and three FLIS parameters showed strong to very strong correlation with CP score (r = -0.60 to 0.82). ROC curve analysis showed that FLIS ≥ 5 was the optimal cutoff for prediction of CP class A or CLD (sensitivity, 83.7%; specificity, 94.4%; area under the curve [AUC], 0.93). FLIS < 5 was independently associated with the development of first hepatic decompensation in patients with CP A (HR, 50.0; 95% confidence interval, 6.2, 400.4). CONCLUSION FLIS showed a strong correlation with hepatic function and can stratify the CP class. In addition, FLIS can help prediction for the development of first decompensation. KEY POINTS • Functional liver imaging scores (FLIS) and its three parameters, derived from hepatobiliary phase image, have strong to very strong correlations with Child-Pugh (CP) scores. • FLIS can stratify patients with chronic liver disease or liver cirrhosis according to CP classification. • Low FLIS is an independent predictor for first hepatic decompensation in patients with CP class A.
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Affiliation(s)
- Ho Jun Lee
- Department of Radiology, Biomedical Research Institute, Pusan National University Hospital, Pusan National University School of Medicine, Busan, South Korea
| | - Seung Baek Hong
- Department of Radiology, Biomedical Research Institute, Pusan National University Hospital, Pusan National University School of Medicine, Busan, South Korea.
| | - Nam Kyung Lee
- Department of Radiology, Biomedical Research Institute, Pusan National University Hospital, Pusan National University School of Medicine, Busan, South Korea
| | - Suk Kim
- Department of Radiology, Biomedical Research Institute, Pusan National University Hospital, Pusan National University School of Medicine, Busan, South Korea
| | - Hyung Il Seo
- Department of Surgery, Biomedical Research Institute, Pusan National University Hospital, Pusan National University School of Medicine, Busan, South Korea
| | - Dong Uk Kim
- Department of Internal Medicine, Biomedical Research Institute, Pusan National University Hospital, Pusan National University School of Medicine, Busan, South Korea
| | - Sung Yong Han
- Department of Internal Medicine, Biomedical Research Institute, Pusan National University Hospital, Pusan National University School of Medicine, Busan, South Korea
| | - Ki Suk Choo
- Department of Radiology, Biomedical Research Institute, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Yangsan, South Korea
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24
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Koh DM, Ba-Ssalamah A, Brancatelli G, Fananapazir G, Fiel MI, Goshima S, Ju SH, Kartalis N, Kudo M, Lee JM, Murakami T, Seidensticker M, Sirlin CB, Tan CH, Wang J, Yoon JH, Zeng M, Zhou J, Taouli B. Consensus report from the 9 th International Forum for Liver Magnetic Resonance Imaging: applications of gadoxetic acid-enhanced imaging. Eur Radiol 2021; 31:5615-5628. [PMID: 33523304 PMCID: PMC8270799 DOI: 10.1007/s00330-020-07637-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 11/17/2020] [Accepted: 12/16/2020] [Indexed: 12/14/2022]
Abstract
Objectives The 9th International Forum for Liver Magnetic Resonance Imaging (MRI) was held in Singapore in September 2019, bringing together radiologists and allied specialists to discuss the latest developments in and formulate consensus statements for liver MRI, including the applications of gadoxetic acid–enhanced imaging. Methods As at previous Liver Forums, the meeting was held over 2 days. Presentations by the faculty on days 1 and 2 and breakout group discussions on day 1 were followed by delegate voting on consensus statements presented on day 2. Presentations and discussions centered on two main meeting themes relating to the use of gadoxetic acid–enhanced MRI in primary liver cancer and metastatic liver disease. Results and conclusions Gadoxetic acid–enhanced MRI offers the ability to monitor response to systemic therapy and to assist in pre-surgical/pre-interventional planning in liver metastases. In hepatocellular carcinoma, gadoxetic acid–enhanced MRI provides precise staging information for accurate treatment decision-making and follow-up post therapy. Gadoxetic acid–enhanced MRI also has potential, currently investigational, indications for the functional assessment of the liver and the biliary system. Additional voting sessions at the Liver Forum debated the role of multidisciplinary care in the management of patients with liver disease, evidence to support the use of abbreviated imaging protocols, and the importance of standardizing nomenclature in international guidelines in order to increase the sharing of scientific data and improve the communication between centers. Key Points • Gadoxetic acid–enhanced MRI is the preferred imaging method for pre-surgical or pre-interventional planning for liver metastases after systemic therapy. • Gadoxetic acid–enhanced MRI provides accurate staging of HCC before and after treatment with locoregional/biologic therapies. • Abbreviated protocols for gadoxetic acid–enhanced MRI offer potential time and cost savings, but more evidence is necessary. The use of gadoxetic acid–enhanced MRI for the assessment of liver and biliary function is under active investigation. Supplementary Information The online version contains supplementary material available at 10.1007/s00330-020-07637-4.
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Affiliation(s)
- Dow-Mu Koh
- Department of Diagnostic Radiology, Royal Marsden Hospital, Sutton, UK.
| | - Ahmed Ba-Ssalamah
- Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Giuseppe Brancatelli
- Dipartimento di Biomedicina, Neuroscienze e Diagnostica avanzata (BiND), University of Palermo, Palermo, Italy
| | | | - M Isabel Fiel
- Department of Pathology, Molecular and Cell Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Satoshi Goshima
- Department of Diagnostic Radiology & Nuclear Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Sheng-Hong Ju
- Department of Radiology, Zhongda Hospital, Southeast University, Nanjing, People's Republic of China
| | - Nikolaos Kartalis
- Department of Radiology Huddinge, Karolinska University Hospital, Stockholm, Sweden.,Division of Radiology, CLINTEC, Karolinska Institutet, Stockholm, Sweden
| | - Masatoshi Kudo
- Department of Hepatology and Gastroenterology, Kindai University Faculty of Medicine, Osaka, Japan
| | - Jeong Min Lee
- Department of Radiology, College of Medicine, Seoul National University, Seoul, South Korea
| | - Takamichi Murakami
- Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Max Seidensticker
- Klinik und Poliklinik für Radiologie, Klinikum der Universität München, Munich, Germany
| | - Claude B Sirlin
- Department of Radiology, University of California San Diego, San Diego, CA, USA
| | - Cher Heng Tan
- Department of Diagnostic Radiology, Tan Tock Seng Hospital, Lee Kong Chian School of Medicine, Singapore, Singapore
| | - Jin Wang
- Department of Radiology, Third Affiliated Hospital of Sun Yat Sen University, Guangzhou, People's Republic of China
| | - Jeong Hee Yoon
- Department of Radiology, College of Medicine, Seoul National University, Seoul, South Korea
| | - Mengsu Zeng
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China
| | - Jian Zhou
- Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China
| | - Bachir Taouli
- Department of Diagnostic, Molecular, and Interventional Radiology, BioMedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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25
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Quantification of liver function using gadoxetic acid-enhanced MRI. Abdom Radiol (NY) 2020; 45:3532-3544. [PMID: 33034671 PMCID: PMC7593310 DOI: 10.1007/s00261-020-02779-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 08/20/2020] [Accepted: 09/21/2020] [Indexed: 02/06/2023]
Abstract
The introduction of hepatobiliary contrast agents, most notably gadoxetic acid (GA), has expanded the role of MRI, allowing not only a morphologic but also a functional evaluation of the hepatobiliary system. The mechanism of uptake and excretion of gadoxetic acid via transporters, such as organic anion transporting polypeptides (OATP1,3), multidrug resistance-associated protein 2 (MRP2) and MRP3, has been elucidated in the literature. Furthermore, GA uptake can be estimated on either static images or on dynamic imaging, for example, the hepatic extraction fraction (HEF) and liver perfusion. GA-enhanced MRI has achieved an important role in evaluating morphology and function in chronic liver diseases (CLD), allowing to distinguish between the two subgroups of nonalcoholic fatty liver diseases (NAFLD), simple steatosis and nonalcoholic steatohepatitis (NASH), and help to stage fibrosis and cirrhosis, predict liver transplant graft survival, and preoperatively evaluate the risk of liver failure if major resection is planned. Finally, because of its noninvasive nature, GA-enhanced MRI can be used for long-term follow-up and post-treatment monitoring. This review article aims to describe the current role of GA-enhanced MRI in quantifying liver function in a variety of hepatobiliary disorders.
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26
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Taouli B, Alves FC. Imaging biomarkers of diffuse liver disease: current status. Abdom Radiol (NY) 2020; 45:3381-3385. [PMID: 32583139 DOI: 10.1007/s00261-020-02619-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 06/09/2020] [Accepted: 06/13/2020] [Indexed: 12/15/2022]
Abstract
We are happy to introduce this special issue of Abdominal Radiology on "diffuse liver disease". We have invited imaging experts to discuss various topics pertaining to diffuse liver disease, covering a vast array of imaging techniques including ultrasound (US), CT, MRI and new molecular imaging agents. Below, we briefly discussed the current status, limitations, and future directions of imaging biomarkers of diffuse liver disease.
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Affiliation(s)
- Bachir Taouli
- Department of Diagnostic, Molecular and Interventional Radiology, Icahn School of Medicine At Mount Sinai, 1470 Madison Avenue, New York, NY, 10029, USA.
- BioMedical Engineering and Imaging Institute, Icahn School of Medicine At Mount Sinai, New York, NY, USA.
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27
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Abstract
Perfusion imaging allows for the quantitative extraction of physiological perfusion parameters of the liver microcirculation at levels far below the spatial the resolution of CT and MR imaging. Because of its peculiar structure and architecture, perfusion imaging is more challenging in the liver than in other organs. Indeed, the liver is a mobile organ and significantly deforms with respiratory motion. Moreover, it has a dual vascular supply and the sinusoidal capillaries are fenestrated in the normal liver. Using extracellular contrast agents, perfusion imaging has shown its ability to discriminate patients with various stages of liver fibrosis. The recent introduction of hepatobiliary contrast agents enables quantification of both the liver perfusion and the hepatocyte transport function using advanced perfusion models. The purpose of this review article is to describe the characteristics of liver perfusion imaging to assess chronic liver disease, with a special focus on CT and MR imaging.
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28
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Beer L, Bastati N, Ba‐Ssalamah A, Pötter‐Lang S, Lampichler K, Bican Y, Lauber D, Hodge J, Binter T, Pomej K, Simbrunner B, Semmler G, Trauner M, Mandorfer M, Reiberger T. MRI-defined sarcopenia predicts mortality in patients with chronic liver disease. Liver Int 2020; 40:2797-2807. [PMID: 32816394 PMCID: PMC7702045 DOI: 10.1111/liv.14648] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 06/22/2020] [Accepted: 08/16/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND & AIMS To explore whether sarcopenia, diagnosed by an abbreviated magnetic resonance imaging (MRI) protocol is a risk factor for hepatic decompensation and mortality in patients with chronic liver disease (CLD). METHODS In this retrospective single-centre study we included 265 patients (164 men, mean age 54 ± 16 years) with CLD who had undergone MRI of the liver between 2010 and 2015. Transverse psoas muscle thickness (TPMT) was measured on unenhanced and contrast-enhanced T1-weighted and T2-weighted axial images. Sarcopenia was defined by height-adjusted and gender-specific cut-offs in women as TPMT < 8 mm/m and in men as TPMT < 12 mm/m respectively. Patients were further stratified into three prognostic stages according to the absence of advanced fibrosis (FIB-4 < 1.45, non-advanced CLD), compensated-advanced CLD (cACLD) and decompensated-advanced CLD (dACLD). RESULTS The inter-observer agreement for the TPMT measurements (κ = 0.98; 95% confidence interval [95% CI]:0.96-0.98), as well as the intra-observer agreement between the three image sequences (κ = 0.99; 95% CI: 0.99-1.00) were excellent. Sarcopenia was not predictive of first or further hepatic decompensation. In patients with cACLD and dACLD, sarcopenia was a risk factor for mortality (cACLD: hazard ratio (HR):3.13, 95% CI: 1.33-7.41, P = .009; dACLD:HR:2.45, 95% CI: 1.32-4.57, P = .005) on univariate analysis. After adjusting for the model of end-stage liver disease (MELD) score, albumin and evidence of clinical significant portal hypertension, sarcopenia (adjusted HR: 2.76, 95% CI: 1.02-7.42, P = .045) remained an independent risk factor for mortality in patients with cACLD. CONCLUSION Sarcopenia can be easily evaluated by a short MRI exam without the need for contrast injection. Sarcopenia is a risk factor for mortality, especially in patients with cACLD.
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Affiliation(s)
- Lucian Beer
- Department of Biomedical Imaging and Image‐guided TherapyMedical University of ViennaViennaAustria,Department of Radiology and Cancer Research UK Cambridge CenterCambridgeUK
| | - Nina Bastati
- Department of Biomedical Imaging and Image‐guided TherapyMedical University of ViennaViennaAustria
| | - Ahmed Ba‐Ssalamah
- Department of Biomedical Imaging and Image‐guided TherapyMedical University of ViennaViennaAustria
| | - Sarah Pötter‐Lang
- Department of Biomedical Imaging and Image‐guided TherapyMedical University of ViennaViennaAustria
| | - Katharina Lampichler
- Department of Biomedical Imaging and Image‐guided TherapyMedical University of ViennaViennaAustria
| | - Yesim Bican
- Department of Biomedical Imaging and Image‐guided TherapyMedical University of ViennaViennaAustria
| | - David Lauber
- Department of Biomedical Imaging and Image‐guided TherapyMedical University of ViennaViennaAustria
| | - Jacqueline Hodge
- Department of Biomedical Imaging and Image‐guided TherapyMedical University of ViennaViennaAustria
| | - Teresa Binter
- Vienna Hepatic Hemodynamic LabMedical University of ViennaViennaAustria,Divison of Gastroenterology and HepatologyDepartment of Medicine IIIMedical University of ViennaViennaAustria
| | - Katharina Pomej
- Vienna Hepatic Hemodynamic LabMedical University of ViennaViennaAustria,Divison of Gastroenterology and HepatologyDepartment of Medicine IIIMedical University of ViennaViennaAustria
| | - Benedikt Simbrunner
- Vienna Hepatic Hemodynamic LabMedical University of ViennaViennaAustria,Divison of Gastroenterology and HepatologyDepartment of Medicine IIIMedical University of ViennaViennaAustria
| | - Georg Semmler
- Vienna Hepatic Hemodynamic LabMedical University of ViennaViennaAustria,Divison of Gastroenterology and HepatologyDepartment of Medicine IIIMedical University of ViennaViennaAustria
| | - Michael Trauner
- Vienna Hepatic Hemodynamic LabMedical University of ViennaViennaAustria,Divison of Gastroenterology and HepatologyDepartment of Medicine IIIMedical University of ViennaViennaAustria
| | - Mattias Mandorfer
- Vienna Hepatic Hemodynamic LabMedical University of ViennaViennaAustria,Divison of Gastroenterology and HepatologyDepartment of Medicine IIIMedical University of ViennaViennaAustria
| | - Thomas Reiberger
- Vienna Hepatic Hemodynamic LabMedical University of ViennaViennaAustria,Divison of Gastroenterology and HepatologyDepartment of Medicine IIIMedical University of ViennaViennaAustria
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Leao Filho H, de Oliveira CV, Horvat N. Other types of diffuse liver disease: is there a way to do it? Abdom Radiol (NY) 2020; 45:3425-3443. [PMID: 32306241 DOI: 10.1007/s00261-020-02530-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
There are a variety of less common diffuse liver diseases that can be asymptomatic or cause severe liver dysfunction. For the majority of them, the association of clinical, laboratory, and imaging findings are needed to narrow the differential diagnosis. In this article, we will review and describe the rarer diffuse liver diseases including drug-related liver disease, inflammatory and infectious diseases, and deposition disorders such as amyloidosis, glycogen storage disease, Wilson's disease, and alpha-1 antitrypsin deficiency. Abdominal radiologists should be familiar with the imaging features of different types of diffuse liver diseases to help the multidisciplinary team involved in the treatment of these patients. The data related to some of these conditions are scarce and sometimes experimental, but we want to demonstrate to the reader the value of imaging techniques in their analysis and introduce the potential of new imaging methods.
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Vietti Violi N, Argiriadi P, Rosen A, Cherny M, Weiss A, Hernandez-Meza G, Babb JS, Kihira S, Lewis S, Taouli B. Gadoxetate disodium-enhanced MRI: Assessment of arterial phase artifacts and hepatobiliary uptake in a large series. Eur J Radiol 2020; 132:109313. [PMID: 33053495 DOI: 10.1016/j.ejrad.2020.109313] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/28/2020] [Accepted: 09/24/2020] [Indexed: 11/27/2022]
Abstract
PURPOSE To report the quality of gadoxetate disodium MRI in a large series by assessing the prevalence of: 1) arterial phase (AP) artifacts and its predictive factors, 2) decreased hepatic contrast uptake during the hepatobiliary phase (HBP). METHODS This retrospective single center study included 851 patients (M/F:537/314, mean age: 63y) with gadoxetate disodium MRI. The MRI protocol included unenhanced, dual arterial [early and late arterial phases (AP)], portal venous, transitional and hepatobiliary phases. Three radiologists graded dynamic images using a 5-scale score (1: no motion, 5: severe, nondiagnostic) for assessment of transient severe motion (TSM, defined as a score ≥4 during at least one AP with a score ≤3 during other phases). HBP uptake was assessed using a 3-scale score (based on portal vein/hepatic signal). The association between demographic, clinical and acquisition parameters with TSM was tested in uni- and multivariate logistic regression. RESULTS TSM was observed in 103/851 patients (12.1 %): 83 (9.8 %) in one AP and 20 (2.3 %) in both APs. A score of 5 (nondiagnostic) was assigned in 7 patients in one AP (0.8 %) and none in both. Presence of TSM was significantly associated with age (p = 0.002) and liver disease (p = 0.033) in univariate but not in multivariate analysis (p > 0.05). No association was found between acquisition parameters and TSM occurrence. Limited or severely limited HBP contrast uptake was observed in 87 patients (10.2 %), and TSM was never associated with severely limited HBP contrast uptake. CONCLUSION TSM was present in approximately 12 % of gadoxetate disodium MRIs, rarely on both APs (2.3 %), and was poorly predicted. TSM was never associated with severely limited HBP contrast uptake.
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Affiliation(s)
- Naik Vietti Violi
- BioMedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Radiology, Lausanne University Hospital, Lausanne, Switzerland.
| | - Pamela Argiriadi
- Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | - Ally Rosen
- Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | - Mathew Cherny
- Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | - Amanda Weiss
- Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | | | - James S Babb
- Department of Radiology, New York University Langone Medical Center, New York, NY USA.
| | - Shingo Kihira
- Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | - Sara Lewis
- BioMedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | - Bachir Taouli
- BioMedical Engineering and Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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31
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Amorim VB, Parente DB, Paiva FF, Oliveira Neto JA, Miranda AA, Moreira CC, Fernandes FF, Campos CFF, Leite NC, Perez RDM, Rodrigues RS. Can gadoxetic acid–enhanced magnetic resonance imaging be used to avoid liver biopsy in patients with nonalcoholic fatty liver disease? World J Hepatol 2020; 12:661-671. [PMID: 33033571 PMCID: PMC7522564 DOI: 10.4254/wjh.v12.i9.661] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 06/29/2020] [Accepted: 08/16/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Nonalcoholic fatty liver disease (NAFLD) is a major cause of liver disease worldwide. The diagnosis of nonalcoholic steatohepatitis (NASH), the most severe form of NAFLD, is crucial and has prognostic and therapeutic implications. However, currently this diagnosis is based on liver biopsy and has several limitations.
AIM To evaluate the performance of gadoxetic acid–enhanced magnetic resonance imaging (GA-MRI) in differentiating isolated steatosis from NASH in patients with NAFLD.
METHODS In this prospective study, 56 patients with NAFLD (18 with isolated steatosis and 38 with NASH) underwent GA-MRI. The contrast enhancement index (CEI) was calculated as the rate of increase of the liver-to-muscle signal intensity ratio from before and 20 min after intravenous GA administration. Between-group differences in mean CEI were examined using Student's t test. The area under the receiver operator characteristic curve and the diagnostic performance of gadoxetic acid–enhanced magnetic resonance imaging were evaluated.
RESULTS The mean CEI for all subjects was 1.82 ± 0.19. The mean CEI was significantly lower in patients with NASH than in those with isolated steatosis (P = 0.008). Two CEI cut-off points were used: < 1.66 (94% specificity) to characterize NASH and > 2.00 (89% sensitivity) to characterize isolated steatosis. CEI values between 1.66 and 2.00 indicated liver biopsy, and the procedure could be avoided in 40% of patients with NAFLD.
CONCLUSION GA-MRI is an effective noninvasive method that may be useful for the differentiation of NASH from isolated steatosis, and could help to avoid liver biopsy in patients with NAFLD.
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Affiliation(s)
- Viviane Brandão Amorim
- Research Department, D’Or Institute for Research and Education, Rio de Janeiro 22281, Brazil
- Radiology Department, Brazilian National Cancer Institute, Rio de Janeiro 20230-130, Brazil
- Radiology Department, Fleury Group S.A., Rio de Janeiro 20765-000, Brazil
| | - Daniella Braz Parente
- Research Department, D’Or Institute for Research and Education, Rio de Janeiro 22281, Brazil
- Radiology Department, Hospital Universitário Clementino Fraga Filho, Federal University of Rio de Janeiro, Rio de Janeiro 21941-590, Brazil
| | | | - Jaime Araújo Oliveira Neto
- Research Department, D’Or Institute for Research and Education, Rio de Janeiro 22281, Brazil
- Radiology Department, Quinta D'Or Hospital, Rio de Janeiro 20941-150, Brazil
| | - Amanda Almeida Miranda
- Radiology Department, Centro de Diagnóstico Médico do Maranhão, Maranhão 65074-441, Brazil
| | - Cláudia Cravo Moreira
- Department of Clinical Medicine, Hospital Universitário Clementino Fraga Filho, Federal University of Rio de Janeiro, Rio de Janeiro 21941-590, Brazil
| | - Flávia Ferreira Fernandes
- Gastroenterology and Hepatology Department, Hospital Federal de Bonsucesso, Rio de Janeiro 21041-030, Brazil
| | | | - Nathalie Carvalho Leite
- Department of Clinical Medicine, Hospital Universitário Clementino Fraga Filho, Federal University of Rio de Janeiro, Rio de Janeiro 21941-590, Brazil
| | - Renata de Mello Perez
- Research Department, D’Or Institute for Research and Education, Rio de Janeiro 22281, Brazil
- Internal Medicine Department, Hospital Universitário Clementino Fraga Filho, Federal University of Rio de Janeiro, Rio de Janeiro 21941-590, Brazil
- Gastroenterology Department, Hospital Universitário Pedro Ernesto, University of the State of Rio de Janeiro, Rio de Janeiro 20551-030, Brazil
| | - Rosana Souza Rodrigues
- Research Department, D’Or Institute for Research and Education, Rio de Janeiro 22281, Brazil
- Radiology Department, Hospital Universitário Clementino Fraga Filho, Federal University of Rio de Janeiro, Rio de Janeiro 21941-590, Brazil
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Tomassini F, Giglio MC, De Simone G, Montalti R, Troisi RI. Hepatic function assessment to predict post-hepatectomy liver failure: what can we trust? A systematic review. Updates Surg 2020; 72:925-938. [PMID: 32749596 DOI: 10.1007/s13304-020-00859-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 07/24/2020] [Indexed: 02/06/2023]
Abstract
Post hepatectomy liver failure (PHLF) could occur even though an adequate liver volume is preserved. Liver function is not strictly related to the volume and the necessity to pre-operatively predict the future liver remnant (FLR) function is emerging, together with the wide spreading of techniques, aiming to optimize the FLR. The aim of this study was to systematically review all the available tests, to pre-operatively assess the liver function and to estimate the risk of PHLF. A systematic literature research of Medline, Embase, Scopus was performed in accordance to the preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines, to identify all the studies available for pre-operative liver function tests to assess the risk of PHLF and/or complications. From the 1122 references retrieved, 79 were included in the review. Dynamic functional tests, such as indocyanine green test (ICG), could evaluate only global liver function, with no definition of functional capacity of the remnant. Magnetic resonance imaging (MRI) with liver-specific contrast agents enables both liver function and volume evaluation; the absence of ionizing radiation showed a better patient's compliance. Nuclear imaging studies as hepatobiliary scintigraphy (HBS) present the unique ability to allow a precise evaluation of the segmental liver function of the remnant liver. Liver volume could overestimate liver function. Several liver function tests are available to evaluate the risk of PHLF in the pre-operative setting. However, no single test alone could accurately predict PHLF. Pre-operative combination between a dynamic quantitative test, such as ICG, with MRI or HBS, should enable a more complete functional evaluation. Functional tests to predict PHLF should be chosen according to patient's characteristics, disease, and center experience.
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Affiliation(s)
- Federico Tomassini
- Department of Human Structure and Repair, Faculty of Medicine, Ghent University, Ghent, Belgium
| | - Mariano C Giglio
- Division of HPB, Minimally Invasive and Robotic Surgery, Department of Clinical Medicine and Surgery, Federico II University Naples, Via S. Pansini 5, 80131, Naples, Italy
| | - Giuseppe De Simone
- Division of HPB, Minimally Invasive and Robotic Surgery, Department of Clinical Medicine and Surgery, Federico II University Naples, Via S. Pansini 5, 80131, Naples, Italy.,Department of Public Health, Federico II University Naples, Via S. Pansini 5, 80131, Naples, Italy
| | - Roberto Montalti
- Division of HPB, Minimally Invasive and Robotic Surgery, Department of Clinical Medicine and Surgery, Federico II University Naples, Via S. Pansini 5, 80131, Naples, Italy.,Department of Public Health, Federico II University Naples, Via S. Pansini 5, 80131, Naples, Italy
| | - Roberto I Troisi
- Department of Human Structure and Repair, Faculty of Medicine, Ghent University, Ghent, Belgium. .,Division of HPB, Minimally Invasive and Robotic Surgery, Department of Clinical Medicine and Surgery, Federico II University Naples, Via S. Pansini 5, 80131, Naples, Italy.
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Verde F, Romeo V, Maurea S. Advanced liver imaging using MR to predict outcomes in chronic liver disease: a shift from morphology to function liver assessment. Quant Imaging Med Surg 2020; 10:805-807. [PMID: 32269940 DOI: 10.21037/qims.2020.02.03] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Francesco Verde
- Department of Advanced Biomedical Sciences, University of Naples "Federico II", Naples, Italy
| | - Valeria Romeo
- Department of Advanced Biomedical Sciences, University of Naples "Federico II", Naples, Italy
| | - Simone Maurea
- Department of Advanced Biomedical Sciences, University of Naples "Federico II", Naples, Italy
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Simeth J, Cao Y. GAN and dual-input two-compartment model-based training of a neural network for robust quantification of contrast uptake rate in gadoxetic acid-enhanced MRI. Med Phys 2020; 47:1702-1712. [PMID: 31997391 DOI: 10.1002/mp.14055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 01/14/2020] [Accepted: 01/20/2020] [Indexed: 12/21/2022] Open
Abstract
PURPOSE Gadoxetic acid uptake rate (k1 ) obtained from dynamic, contrast-enhanced (DCE) magnetic resonance imaging (MRI) is a promising measure of regional liver function. Clinical exams are typically poorly temporally characterized, as seen in a low temporal resolution (LTR) compared to high temporal resolution (HTR) experimental acquisitions. Meanwhile, clinical demands incentivize shortening these exams. This study develops a neural network-based approach to quantitation of k1 , for increased robustness over current models such as the linearized single-input, two-compartment (LSITC) model. METHODS Thirty Liver HTR DCE MRI exams were acquired in 22 patients with at least 16 min of postcontrast data sampled at least every 13 s. A simple neural network (NN) with four hidden layers was trained on voxel-wise LTR data to predict k1 . Low temporal resolution data were created by subsampling HTR data to contain six time points, replicating the characteristics of clinical LTR data. Both the total length and the placement of points in the training data were varied considerably to encourage robustness to variation. A generative adversarial network (GAN) was used to generate arterial and portal venous inputs for use in data augmentation based on the dual-input, two-compartment, pharmacokinetic model of gadoxetic acid in the liver. The performance of the NN was compared to direct application of LSITC on both LTR and HTR data. The error was assessed when subsampling lengths from 16 to 4 min, enabling assessment of robustness to acquisition length. RESULTS For acquisition lengths of 16 min NRMSE (Normalized Root-Mean-Squared Error) in k1 was 0.60, 1.77, and 1.21, for LSITC applied to HTR data, LSITC applied to LTR data, and GAN-augmented NN applied to LTR data, respectively. As the acquisition length was shortened, errors greatly increased for LSITC approaches by several folds. For acquisitions shorter than 12 min the GAN-augmented NN approach outperformed the LSITC approach to a statistically significant extent, even with HTR data. CONCLUSIONS The study indicates that data length is significant for LSITC analysis as applied to DCE data for standard temporal sampling, and that machine learning methods, such as the implemented NN, have potential for much greater resilience to shortened acquisition time than directly fitting to the LSITC model.
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Affiliation(s)
- Josiah Simeth
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA.,Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA
| | - Yue Cao
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA.,Department of Radiology, University of Michigan, Ann Arbor, MI, USA.,Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA
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Bastati N, Beer L, Mandorfer M, Poetter-Lang S, Tamandl D, Bican Y, Elmer MC, Einspieler H, Semmler G, Simbrunner B, Weber M, Hodge JC, Vernuccio F, Sirlin C, Reiberger T, Ba-Ssalamah A. Does the Functional Liver Imaging Score Derived from Gadoxetic Acid–enhanced MRI Predict Outcomes in Chronic Liver Disease? Radiology 2020; 294:98-107. [DOI: 10.1148/radiol.2019190734] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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36
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Beer L, Mandorfer M, Bastati N, Poetter-Lang S, Tamandl D, Stoyanova DP, Elmer MC, Semmler G, Simbrunner B, Hodge JC, Sirlin CB, Reiberger T, Ba-Ssalamah A. Inter- and intra-reader agreement for gadoxetic acid-enhanced MRI parameter readings in patients with chronic liver diseases. Eur Radiol 2019; 29:6600-6610. [PMID: 31001679 PMCID: PMC6828941 DOI: 10.1007/s00330-019-06182-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 02/21/2019] [Accepted: 03/19/2019] [Indexed: 02/08/2023]
Abstract
OBJECTIVES To examine inter- and intra-observer agreement for four simple hepatobiliary phase (HBP)-based scores on gadoxetic acid (GA)-enhanced MRI and their correlation with liver function in patients with mixed chronic liver disease (CLD). METHODS This single-center, retrospective study included 287 patients (62% male, 38% female, mean age 53.5 ± 13.7 years) with mixed CLD (20.9% hepatitis C, 19.2% alcoholic liver disease, 8% hepatitis B) who underwent GA-enhanced MRI of the liver for clinical care between 2010 and 2015. Relative liver enhancement (RLE), contrast uptake index (CUI), hepatic uptake index (HUI), and liver-to-spleen contrast index (LSI) were calculated by two radiologists independently using unenhanced and GA-enhanced HPB (obtained 20 min after GA administration) images; 50 patients selected at random were reviewed twice by one reader to assess intra-observer reliability. Agreement was assessed by intraclass correlation coefficient (ICC). The albumin-bilirubin (ALBI) score, the model of end-stage liver disease (MELD), and the Child-Turcotte-Pugh (CTP) score were calculated as standards of reference for hepatic function. RESULTS Intra-observer ICCs ranged from 0.814 (0.668-0.896) for CUI to 0.969 (0.945-0.983) for RLE. Inter-observer ICCs ranged from 0.777 (0.605-0.874) for HUI to 0.979 (0.963-0.988) for RLE. All HBP-based scores correlated significantly (all p < 0.001) with the ALBI, MELD, and CTP scores and were able to discriminate patients with a MELD score ≥ 15 versus ≤ 14, with area under the curve values ranging from 0.760 for RLE to 0.782 for HUI. CONCLUSION GA-enhanced, MRI-derived, HBP-based parameters showed excellent inter- and intra-observer agreement. All HBP-based parameters correlated with clinical and laboratory scores of hepatic dysfunction, with no significant differences between each other. KEY POINTS • Radiological parameters that quantify the hepatic uptake of gadoxetic acid are highly reproducible. • These parameters can be used interchangeably because they correlate with each other and with scores of hepatic dysfunction. • Assessment of these parameters may be helpful in monitoring disease progression.
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Affiliation(s)
- Lucian Beer
- Department of Biomedical Imaging and Imaging-Guided Therapy, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Mattias Mandorfer
- Division of Gastroenterology and Hepatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
- Vienna Hepatic Hemodynamic Laboratory, Medical University of Vienna, Vienna, Austria
| | - Nina Bastati
- Department of Biomedical Imaging and Imaging-Guided Therapy, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Sarah Poetter-Lang
- Department of Biomedical Imaging and Imaging-Guided Therapy, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Dietmar Tamandl
- Department of Biomedical Imaging and Imaging-Guided Therapy, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Dilyana Plamenova Stoyanova
- Department of Biomedical Imaging and Imaging-Guided Therapy, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Michael Christoph Elmer
- Department of Biomedical Imaging and Imaging-Guided Therapy, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Georg Semmler
- Division of Gastroenterology and Hepatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
- Vienna Hepatic Hemodynamic Laboratory, Medical University of Vienna, Vienna, Austria
| | - Benedikt Simbrunner
- Division of Gastroenterology and Hepatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
- Vienna Hepatic Hemodynamic Laboratory, Medical University of Vienna, Vienna, Austria
| | - Jacqueline C Hodge
- Department of Biomedical Imaging and Imaging-Guided Therapy, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Claude B Sirlin
- Liver Imaging Group, Department of Radiology, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Thomas Reiberger
- Division of Gastroenterology and Hepatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
- Vienna Hepatic Hemodynamic Laboratory, Medical University of Vienna, Vienna, Austria
| | - Ahmed Ba-Ssalamah
- Department of Biomedical Imaging and Imaging-Guided Therapy, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria.
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Metal-Based Complexes as Pharmaceuticals for Molecular Imaging of the Liver. Pharmaceuticals (Basel) 2019; 12:ph12030137. [PMID: 31527492 PMCID: PMC6789861 DOI: 10.3390/ph12030137] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 09/09/2019] [Accepted: 09/11/2019] [Indexed: 12/13/2022] Open
Abstract
This article reviews the use of metal complexes as contrast agents (CA) and radiopharmaceuticals for the anatomical and functional imaging of the liver. The main focus was on two established imaging modalities: magnetic resonance imaging (MRI) and nuclear medicine, the latter including scintigraphy and positron emission tomography (PET). The review provides an overview on approved pharmaceuticals like Gd-based CA and 99mTc-based radiometal complexes, and also on novel agents such as 68Ga-based PET tracers. Metal complexes are presented by their imaging modality, with subsections focusing on their structure and mode of action. Uptake mechanisms, metabolism, and specificity are presented, in context with advantages and limitations of the diagnostic application and taking into account the respective imaging technique.
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Serum albumin, total bilirubin, and patient age are independent confounders of hepatobiliary-phase gadoxetate parenchymal liver enhancement. Eur Radiol 2019; 29:5813-5822. [DOI: 10.1007/s00330-019-06179-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Revised: 01/23/2019] [Accepted: 02/07/2019] [Indexed: 12/21/2022]
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T1 mapping for liver function evaluation in gadoxetic acid–enhanced MR imaging: comparison of look-locker inversion recovery and B1 inhomogeneity–corrected variable flip angle method. Eur Radiol 2019; 29:3584-3594. [DOI: 10.1007/s00330-018-5947-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 10/27/2018] [Accepted: 12/04/2018] [Indexed: 02/06/2023]
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Hepatobiliary phase in cirrhotic patients with different Model for End-stage Liver Disease score: comparison of the performance of gadoxetic acid to gadobenate dimeglumine. Eur Radiol 2018; 29:3090-3099. [PMID: 30547205 DOI: 10.1007/s00330-018-5884-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 10/22/2018] [Accepted: 11/09/2018] [Indexed: 02/08/2023]
Abstract
OBJECTIVES The purpose of this study was to compare the performance of gadobenate dimeglumine-enhanced MRI and gadoxetic acid-enhanced MRI in the hepatobiliary phase (HBP) in cirrhotic patients with different degrees of liver dysfunction. METHODS In this retrospective cross-sectional study, we analyzed the unenhanced phase and the HBP of 131 gadobenate dimeglumine-enhanced MRI examinations (gadobenate dimeglumine group) and 127 gadoxetic acid-enhanced MRI examinations (gadoxetic acid group) performed in 249 cirrhotic patients (181 men and 68 women; mean age, 64.8 years) from August 2011 to April 2017. For each MRI, the contrast enhancement index of the liver parenchyma was calculated and correlated to the Model For End-Stage Liver Disease (MELD) score (multiple linear regression analysis). A qualitative analysis of the adequacy of the HBP, adjusted for the MELD score (logistic regression analysis), was performed. RESULTS The contrast enhancement index was inversely related (r = - 0.013) with MELD score in both gadoxetic acid and gadobenate dimeglumine group. At the same MELD score, the contrast enhancement index in the gadoxetic acid group was increased by a factor of 0.23 compared to the gadobenate dimeglumine group (p < 0.001), and the mean odds ratio to have an adequate HBP with gadoxetic acid compared to gadobenate dimeglumine was 3.64 (p < 0.001). The adequacy of the HBP in the gadoxetic acid group compared to the gadobenate dimeglumine group increased with the increase of the MELD score (exp(b)interaction = 1.233; p = 0.011). CONCLUSION In cirrhotic patients, the hepatobiliary phase obtained with gadoxetic acid-enhanced MRI is of better quality in comparison to gadobenate dimeglumine-enhanced MRI, mainly in patients with high MELD score. KEY POINTS • In cirrhotic patients, the adequacy of the hepatobiliary phase with gadoxetic acid-enhanced MRI is better compared to gadobenate dimeglumine-enhanced MRI. • Gadoxetic acid-enhanced MRI should be preferred to gadobenate dimeglumine-enhanced MRI in cirrhotic patients with MELD score > 10, if the hepatobiliary phase is clinically indicated. • In patients with high MELD score (> 15), the administration of the hepatobiliary agent could be useless; even though, if it is clinically indicated, we recommend to use gadoxetic acid given the higher probability of obtaining clinically relevant information.
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Sibinga Mulder BG, Visser K, Feshtali S, Vahrmeijer AL, Swijnenburg RJ, Hartgrink HH, van den Boom R, Burgmans MC, Mieog JSD. Gadoxetic acid-enhanced magnetic resonance imaging significantly influences the clinical course in patients with colorectal liver metastases. BMC Med Imaging 2018; 18:44. [PMID: 30442100 PMCID: PMC6238306 DOI: 10.1186/s12880-018-0289-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 11/05/2018] [Indexed: 01/08/2023] Open
Abstract
Background Gadoxetic acid (Primovist™)-enhanced magnetic resonance imaging (P-MRI) scans have higher accuracy and increased detection of small colorectal liver metastases (CRLM) compared to CT scans or conventional MRI scans. But, P-MRI scans are still inconsistently acquired in the diagnostic work up of patients with CRLM. The aim of this study was to determine the influence of P-MRI scans on treatment plan proposition and subsequently the clinical course of the patient. Methods Eighty-three consecutive patients with potentially resectable CRLM based on a conventional CT scan underwent P-MRI scanning prior to treatment. Treatment plans proposed by the multidisciplinary team were compared before and after P-MRI scanning and related to the final treatment and diagnosis, the accuracy for the CT scan and P-MRI scan was calculated. Results P-MRI scans led to a change of treatment in 15 patients (18%) and alteration of extensiveness of local therapy in another 17 patients (20%). All changes were justified leading to an accuracy of 93% for treatment proposition based on P-MRI scan, compared to an accuracy of 75% for the CT scan. Conclusions P-MRI scans provide additional information that can aid in proposing the most suitable treatment for patients with CRLM and might prevent short-term reintervention. Electronic supplementary material The online version of this article (10.1186/s12880-018-0289-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- B G Sibinga Mulder
- Department of Surgery, Leiden University Medical Center, P.O. Box 9600, Leiden, 2300 RC, The Netherlands
| | - K Visser
- Department of Surgery, Leiden University Medical Center, P.O. Box 9600, Leiden, 2300 RC, The Netherlands
| | - S Feshtali
- Department of Radiology, Leiden University Medical Center, P.O. Box 9600, Leiden, 2300 RC, The Netherlands
| | - A L Vahrmeijer
- Department of Surgery, Leiden University Medical Center, P.O. Box 9600, Leiden, 2300 RC, The Netherlands
| | - R J Swijnenburg
- Department of Surgery, Leiden University Medical Center, P.O. Box 9600, Leiden, 2300 RC, The Netherlands
| | - H H Hartgrink
- Department of Surgery, Leiden University Medical Center, P.O. Box 9600, Leiden, 2300 RC, The Netherlands
| | - R van den Boom
- Department of Radiology, Leiden University Medical Center, P.O. Box 9600, Leiden, 2300 RC, The Netherlands
| | - M C Burgmans
- Department of Radiology, Leiden University Medical Center, P.O. Box 9600, Leiden, 2300 RC, The Netherlands
| | - J S D Mieog
- Department of Surgery, Leiden University Medical Center, P.O. Box 9600, Leiden, 2300 RC, The Netherlands.
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42
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Yacoub JH, Elsayes KM, Fowler KJ, Hecht EM, Mitchell DG, Santillan C, Szklaruk J. Pitfalls in liver MRI: Technical approach to avoiding misdiagnosis and improving image quality. J Magn Reson Imaging 2018; 49:41-58. [DOI: 10.1002/jmri.26343] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 08/29/2018] [Accepted: 08/30/2018] [Indexed: 12/27/2022] Open
Affiliation(s)
- Joseph H Yacoub
- Department of Radiology; Medstar Georgetown University Hospital; Washington DC USA
| | - Khaled M. Elsayes
- Department of Diagnostic Radiology; University of Texas MD Anderson Cancer Center; Houston Texas USA
| | - Kathryn J. Fowler
- University of California San Diego Health System, Department of Radiology; San Diego California USA
| | - Elizabeth M. Hecht
- Department of Radiology; New York Presbyterian-Columbia University Medical Center; New York New York
| | - Donald G. Mitchell
- Department of Radiology; Thomas Jefferson University; Philadelphia Pennsylvania USA
| | - Cynthia Santillan
- Liver Imaging Group; University of California San Diego; San Diego California USA
| | - Janio Szklaruk
- Department of Diagnostic Radiology; University of Texas MD Anderson Cancer Center; Houston Texas USA
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43
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Besa C, Wagner M, Lo G, Gordic S, Chatterji M, Kennedy P, Stueck A, Thung S, Babb J, Smith A, Taouli B. Detection of liver fibrosis using qualitative and quantitative MR elastography compared to liver surface nodularity measurement, gadoxetic acid uptake, and serum markers. J Magn Reson Imaging 2018; 47:1552-1561. [PMID: 29193508 DOI: 10.1002/jmri.25911] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 11/13/2017] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Multiparametric magnetic resonance imaging (mpMRI) combining different techniques such as MR elastography (MRE) has emerged as a noninvasive approach to diagnose and stage liver fibrosis with high accuracy allowing for anatomical and functional information. PURPOSE To assess the diagnostic performance of mpMRI including qualitative and quantitative assessment of MRE, liver surface nodularity (LSN) measurement, hepatic enhancement ratios postgadoxetic acid, and serum markers (APRI, FIB-4) for the detection of liver fibrosis. STUDY TYPE IRB-approved retrospective. SUBJECTS Eighty-three adult patients. FIELD STRENGTH/SEQUENCE 1.5T and 3.0T MR systems. MRE and T1 -weighted postgadoxetic acid sequences. ASSESSMENT Two independent observers analyzed qualitative color-coded MRE maps on a scale of 0-3. Regions of interest were drawn to measure liver stiffness on MRE stiffness maps and on pre- and postcontrast T1 -weighted images to measure hepatic enhancement ratios. Software was used to generate LSN measurements. Histopathology was used as the reference standard for diagnosis of liver fibrosis in all patients. STATISTICAL TESTS A multivariable logistic analysis was performed to identify independent predictors of liver fibrosis. Receiver operating characteristic (ROC) analysis evaluated the performance of each imaging technique for detection of fibrosis, in comparison with serum markers. RESULTS Liver stiffness measured with MRE provided the strongest correlation with histopathologic fibrosis stage (r = 0.74, P < 0.001), and the highest diagnostic performance for detection of stages F2-F4, F3-F4, and F4 (areas under the curve [AUCs] of 0.87, 0.91, and 0.89, respectively, P < 0.001) compared to other methods. Qualitative assessment of MRE maps showed fair to good accuracy for detection of fibrosis (AUC range 0.76-0.84). Multivariable logistic analysis identified liver stiffness and FIB-4 as independent predictors of fibrosis with AUCs of 0.90 (F2-F4), 0.93 (F3-F4) and 0.92 (F4) when combined. DATA CONCLUSION Liver stiffness measured with MRE showed the best performance for detection of liver fibrosis compared to LSN and gadoxetic acid uptake, with slight improvement when combined with FIB-4. LEVEL OF EVIDENCE 3 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2018;47:1552-1561.
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Affiliation(s)
- Cecilia Besa
- Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Department of Radiology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Mathilde Wagner
- Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Grace Lo
- Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Sonja Gordic
- Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Manjil Chatterji
- Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Paul Kennedy
- Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Ashley Stueck
- Department of Pathology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Swan Thung
- Department of Pathology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - James Babb
- Department of Radiology, New York University Langone Medical Center, New York, New York, USA
| | - Andrew Smith
- Department of Radiology, University of Alabama, Birmingham, Alabama, USA
| | - Bachir Taouli
- Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
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44
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Asenbaum U, Kaczirek K, Ba-Ssalamah A, Ringl H, Schwarz C, Waneck F, Fitschek F, Loewe C, Nolz R. Post-hepatectomy liver failure after major hepatic surgery: not only size matters. Eur Radiol 2018; 28:4748-4756. [PMID: 29767320 PMCID: PMC6182758 DOI: 10.1007/s00330-018-5487-y] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 04/06/2018] [Accepted: 04/13/2018] [Indexed: 12/11/2022]
Abstract
Objectives To compare the value of functional future liver remnant (functFLR) to established clinical and imaging variables in prediction of post-hepatectomy liver failure (PHLF) after major liver resection. Methods This retrospective, cross-sectional study included 62 patients, who underwent gadoxetic acid enhanced MRI and MDCT within 10 weeks prior to resection of ≥ 4 liver segments. Future liver remnant (FLR) was measured in MDCT using semi-automatic software. Relative liver enhancement for each FLR segment was calculated as the ratio of signal intensity of parenchyma before and 20 min after i.v. administration of gadoxetic acid and given as mean (remnantRLE). Established variables included indocyanine green clearance, FLR, proportion of FLR, weight-adapted FLR and remnantRLE. functFLR was calculated as FLR multiplied by remnantRLE and divided by patient’s weight. The association of measured variables and PHLF was tested with univariate and multivariate logistic regression analysis and receiver operator characteristics (ROC) curves compared with the DeLong method. Results Sixteen patients (25.8%) experienced PHLF. Univariate logistic regression identified FLR (p = 0.015), proportion of FLR (p = 0.004), weight-adapted FLR (p = 0.003), remnantRLE (p = 0.002) and functFLR (p = 0.002) to be significantly related to the probability of PHLF. In multivariate logistic regression analysis, a decreased functFLR was independently associated with the probability of PHLF (0.561; p = 0.002). Comparing ROC curves, functFLR showed a significantly higher area under the curve (0.904; p < 0.001) than established variables. Conclusions functFLR seems to be superior to established variables in prediction of PHLF after major liver resection. Key Points • functFLR is a parameter combining volumetric and functional imaging information, derived from MDCT and gadoxetic acid enhanced MRI. • In comparison to other established methods, functFLR is superior in prediction of post-hepatectomy liver failure. • functFLR could help to improve patient selection prior major hepatic surgery.
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Affiliation(s)
- Ulrika Asenbaum
- Department of Bio-medical Imaging and Image-guided Therapy, Medical University of Vienna - Vienna General Hospital, Waehringer Guertel 18-20, A-1090, Vienna, Austria
| | - Klaus Kaczirek
- Department of Surgery, Medical University of Vienna - Vienna General Hospital, Waehringer Guertel 18-20, A-1090, Vienna, Austria
| | - Ahmed Ba-Ssalamah
- Department of Bio-medical Imaging and Image-guided Therapy, Medical University of Vienna - Vienna General Hospital, Waehringer Guertel 18-20, A-1090, Vienna, Austria
| | - Helmut Ringl
- Department of Bio-medical Imaging and Image-guided Therapy, Medical University of Vienna - Vienna General Hospital, Waehringer Guertel 18-20, A-1090, Vienna, Austria
| | - Christoph Schwarz
- Department of Surgery, Medical University of Vienna - Vienna General Hospital, Waehringer Guertel 18-20, A-1090, Vienna, Austria
| | - Fredrik Waneck
- Department of Bio-medical Imaging and Image-guided Therapy, Medical University of Vienna - Vienna General Hospital, Waehringer Guertel 18-20, A-1090, Vienna, Austria
| | - Fabian Fitschek
- Department of Surgery, Medical University of Vienna - Vienna General Hospital, Waehringer Guertel 18-20, A-1090, Vienna, Austria
| | - Christian Loewe
- Department of Bio-medical Imaging and Image-guided Therapy, Medical University of Vienna - Vienna General Hospital, Waehringer Guertel 18-20, A-1090, Vienna, Austria
| | - Richard Nolz
- Department of Bio-medical Imaging and Image-guided Therapy, Medical University of Vienna - Vienna General Hospital, Waehringer Guertel 18-20, A-1090, Vienna, Austria.
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45
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Imaging biomarkers in liver fibrosis. RADIOLOGIA 2017; 60:74-84. [PMID: 29108657 DOI: 10.1016/j.rx.2017.09.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 08/29/2017] [Accepted: 09/03/2017] [Indexed: 02/07/2023]
Abstract
There is a need for early identification of patients with chronic liver diseases due to their increasing prevalence and morbidity-mortality. The degree of liver fibrosis determines the prognosis and therapeutic options in this population. Liver biopsy represents the reference standard for fibrosis staging. However, given its limitations and complications, different non-invasive methods have been developed recently for the in vivo quantification of fibrosis. Due to their precision and reliability, biomarkers' measurements derived from Ultrasound and Magnetic Resonance stand out. This article reviews the different acquisition techniques and image processing methods currently used in the evaluation of liver fibrosis, focusing on their diagnostic performance, applicability and clinical value. In order to properly interpret their results in the appropriate clinical context, it seems necessary to understand the techniques and their quality parameters, the standardization and validation of the measurement units and the quality control of the methodological problems.
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46
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Leporq B, Lambert SA, Ronot M, Vilgrain V, Van Beers BE. Simultaneous MR quantification of hepatic fat content, fatty acid composition, transverse relaxation time and magnetic susceptibility for the diagnosis of non-alcoholic steatohepatitis. NMR IN BIOMEDICINE 2017; 30:e3766. [PMID: 28678410 DOI: 10.1002/nbm.3766] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 05/10/2017] [Accepted: 05/30/2017] [Indexed: 06/07/2023]
Abstract
Non-alcoholic steatohepatitis (NASH) is characterized at histology by steatosis, hepatocyte ballooning and inflammatory infiltrates, with or without fibrosis. Although diamagnetic material in fibrosis and inflammation can be detected with quantitative susceptibility imaging, fatty acid composition changes in NASH relative to simple steatosis have also been reported. Therefore, our aim was to develop a single magnetic resonance (MR) acquisition and post-processing scheme for the diagnosis of steatohepatitis by the simultaneous quantification of hepatic fat content, fatty acid composition, T2 * transverse relaxation time and magnetic susceptibility in patients with non-alcoholic fatty liver disease. MR acquisition was performed at 3.0 T using a three-dimensional, multi-echo, spoiled gradient echo sequence. Phase images were unwrapped to compute the B0 field inhomogeneity (ΔB0 ) map. The ΔB0 -demodulated real part images were used for fat-water separation, T2 * and fatty acid composition quantification. The external and internal fields were separated with the projection onto dipole field method. Susceptibility maps were obtained after dipole inversion from the internal field map with single-orientation Bayesian regularization including spatial priors. Method validation was performed in 32 patients with biopsy-proven, non-alcoholic fatty liver disease from which 12 had simple steatosis and 20 NASH. Liver fat fraction and T2 * did not change significantly between patients with simple steatosis and NASH. In contrast, the saturated fatty acid fraction increased in patients with NASH relative to patients with simple steatosis (48 ± 2% versus 44 ± 4%; p < 0.05) and the magnetic susceptibility decreased (-0.30 ± 0.27 ppm versus 0.10 ± 0.14 ppm; p < 0.001). The area under the receiver operating characteristic curve for magnetic susceptibility as NASH marker was 0.91 (95% CI: 0.79-1.0). Simultaneous MR quantification of fat content, fatty acid composition, T2 * and magnetic susceptibility is feasible in the liver. Our preliminary results suggest that quantitative susceptibility imaging has a high diagnostic performance for the diagnosis of NASH.
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Affiliation(s)
- B Leporq
- Laboratory of Imaging Biomarkers, Center of Research on Inflammation, UMR 1149 Inserm, University Paris Diderot, Sorbonne Paris Cité, Paris, France
- Centre de Recherche en Acquisition et Traitement de l'Image pour la Santé, CNRS UMR 5220, Inserm U1209, UCBL Lyon 1, INSA-Lyon, Université de Lyon, France
| | - S A Lambert
- Centre de Recherche en Acquisition et Traitement de l'Image pour la Santé, CNRS UMR 5220, Inserm U1209, UCBL Lyon 1, INSA-Lyon, Université de Lyon, France
| | - M Ronot
- Laboratory of Imaging Biomarkers, Center of Research on Inflammation, UMR 1149 Inserm, University Paris Diderot, Sorbonne Paris Cité, Paris, France
- Department of Radiology, Beaujon University Hospital Paris Nord, Clichy, France
| | - V Vilgrain
- Laboratory of Imaging Biomarkers, Center of Research on Inflammation, UMR 1149 Inserm, University Paris Diderot, Sorbonne Paris Cité, Paris, France
- Department of Radiology, Beaujon University Hospital Paris Nord, Clichy, France
| | - B E Van Beers
- Laboratory of Imaging Biomarkers, Center of Research on Inflammation, UMR 1149 Inserm, University Paris Diderot, Sorbonne Paris Cité, Paris, France
- Department of Radiology, Beaujon University Hospital Paris Nord, Clichy, France
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47
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Imaging of Diffuse Liver Disease. CURRENT RADIOLOGY REPORTS 2017. [DOI: 10.1007/s40134-017-0222-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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48
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Giraudeau C, Leporq B, Doblas S, Lagadec M, Pastor CM, Daire JL, Van Beers BE. Gadoxetate-enhanced MR imaging and compartmental modelling to assess hepatocyte bidirectional transport function in rats with advanced liver fibrosis. Eur Radiol 2016; 27:1804-1811. [PMID: 27553933 DOI: 10.1007/s00330-016-4536-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 07/27/2016] [Accepted: 08/01/2016] [Indexed: 12/18/2022]
Abstract
OBJECTIVES Changes in the expression of hepatocyte membrane transporters in advanced fibrosis decrease the hepatic transport function of organic anions. The aim of our study was to assess if these changes can be evaluated with pharmacokinetic analysis of the hepatobiliary transport of the MR contrast agent gadoxetate. METHODS Dynamic gadoxetate-enhanced MRI was performed in 17 rats with advanced fibrosis and 8 normal rats. After deconvolution, hepatocyte three-compartmental analysis was performed to calculate the hepatocyte influx, biliary efflux and sinusoidal backflux rates. The expression of Oatp1a1, Mrp2 and Mrp3 organic anion membrane transporters was assessed with reverse transcription polymerase chain reaction. RESULTS In the rats with advanced fibrosis, the influx and efflux rates of gadoxetate decreased and the backflux rate increased significantly (p = 0.003, 0.041 and 0.010, respectively). Significant correlations were found between influx and Oatp1a1 expression (r = 0.78, p < 0.001), biliary efflux and Mrp2 (r = 0.50, p = 0.016) and sinusoidal backflux and Mrp3 (r = 0.61, p = 0.002). CONCLUSION These results show that changes in the bidirectional organic anion hepatocyte transport function in rats with advanced liver fibrosis can be assessed with compartmental analysis of gadoxetate-enhanced MRI. KEY POINTS • Expression of hepatocyte transporters is modified in rats with advanced liver fibrosis. • Kinetic parameters at gadoxetate-enhanced MRI are correlated with hepatocyte transporter expression. • Hepatocyte transport function can be assessed with compartmental analysis of gadoxetate-enhanced MRI. • Compartmental analysis of gadoxetate-enhanced MRI might provide biomarkers in advanced liver fibrosis.
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Affiliation(s)
- Céline Giraudeau
- Laboratory of Imaging Biomarkers, UMR1149 Inserm, University Paris Diderot, Sorbonne Paris Cité, Hôpital Beaujon, 100 boulevard du général Leclerc, 92110, Clichy, France.
| | - Benjamin Leporq
- Laboratory of Imaging Biomarkers, UMR1149 Inserm, University Paris Diderot, Sorbonne Paris Cité, Hôpital Beaujon, 100 boulevard du général Leclerc, 92110, Clichy, France
| | - Sabrina Doblas
- Laboratory of Imaging Biomarkers, UMR1149 Inserm, University Paris Diderot, Sorbonne Paris Cité, Hôpital Beaujon, 100 boulevard du général Leclerc, 92110, Clichy, France
| | - Matthieu Lagadec
- Laboratory of Imaging Biomarkers, UMR1149 Inserm, University Paris Diderot, Sorbonne Paris Cité, Hôpital Beaujon, 100 boulevard du général Leclerc, 92110, Clichy, France.,Department of Radiology, Beaujon University Hospital Paris Nord, Clichy, France
| | - Catherine M Pastor
- Laboratory of Imaging Biomarkers, UMR1149 Inserm, University Paris Diderot, Sorbonne Paris Cité, Hôpital Beaujon, 100 boulevard du général Leclerc, 92110, Clichy, France.,Département d'imagerie et des sciences de l'information médicale, Hôpitaux Universitaires de Genève, Geneva, Switzerland
| | - Jean-Luc Daire
- Laboratory of Imaging Biomarkers, UMR1149 Inserm, University Paris Diderot, Sorbonne Paris Cité, Hôpital Beaujon, 100 boulevard du général Leclerc, 92110, Clichy, France.,Department of Radiology, Beaujon University Hospital Paris Nord, Clichy, France
| | - Bernard E Van Beers
- Laboratory of Imaging Biomarkers, UMR1149 Inserm, University Paris Diderot, Sorbonne Paris Cité, Hôpital Beaujon, 100 boulevard du général Leclerc, 92110, Clichy, France.,Department of Radiology, Beaujon University Hospital Paris Nord, Clichy, France
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