Visibility of focal liver lesions: Comparison between kupffer phase of CEUS with sonazoid and hepatobiliary phase of gadoxetic acid-enhanced MRI

2017 ◽  
Vol 45 (9) ◽  
pp. 542-550
Author(s):  
Woo Young Yang ◽  
Hee Sun Park ◽  
Young Jun Kim ◽  
Mi Hye Yu ◽  
Sung Il Jung ◽  
...  
Keyword(s):  
Gadoxetic Acid ◽  
Focal Liver Lesions ◽  
Hepatobiliary Phase ◽  
Liver Lesions ◽  
Enhanced Mri

scholarly journals MRI characterization of focal liver lesions in non-cirrhotic patients: assessment of added value of gadoxetic acid-enhanced hepatobiliary phase imaging

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Bardia Moosavi ◽  
Anuradha S. Shenoy-Bhangle ◽  
Leo L. Tsai ◽  
Robert Reuf ◽  
Koenraad J. Mortele
Keyword(s):  
Gadoxetic Acid ◽  
Added Value ◽  
Rank Test ◽  
Focal Liver Lesions ◽  
Hepatobiliary Phase ◽  
Liver Lesions ◽  
Enhanced Mri ◽  
Phase Images ◽  
Cirrhotic Patients

Abstract Background To evaluate the added value of the hepatobiliary (HPB) phase in gadoxetic acid-enhanced magnetic resonance imaging (MRI) in characterizing newly discovered indeterminate focal liver lesions in non-cirrhotic patients. Results One-hundred and twenty-five non-cirrhotic patients (median age, 46 years; range, 20–85 years; 100 females) underwent gadoxetic acid-enhanced MRI, including the 20-min delayed HPB phase, for characterization of newly discovered focal liver lesions. Images were independently evaluated by two blinded, board-certified abdominal radiologists (R1 and R2) who characterized liver lesions without and with assessment of the HPB phase images in two separate readout sessions. Confidence in diagnosis was scored on a scale from 0 to 3. Inter-observer agreement was assessed using Cohen κ statistics. Change in diagnosis and confidence in diagnosis were evaluated by Wilcoxon signed rank test. There was no significant change in diagnosis before and after evaluation of the HPB phase for both readers (p = 1.0 for R1; p = 0.34 for R2). Confidence in diagnosis decreased from average 2.8 ± 0.45 to 2.6 ± 0.59 for R1 and increased from 2.6 ± 0.83 to 2.8 ± 0.46 for R2. Change in confidence was only statistically significant for R1 (p = 0.003) but not significant for R2 (p = 0.49). Inter-reader agreement in diagnosis was good without (k = 0.66) and with (k = 0.75) inclusion of the HPB phase images. Conclusions The added information obtained from the HPB phase of gadoxetic acid-enhanced MRI does not change the diagnosis or increase confidence in diagnosis when evaluating new indeterminate focal liver lesions in non-cirrhotic patients.

scholarly journals Patterns of enhancement in the hepatobiliary phase of gadoxetic acid-enhanced MRI

2020 ◽  
Vol 93 (1112) ◽  
pp. 20190989
Author(s):  
Cathryn L Hui ◽  
Marcela Mautone
Keyword(s):  
Liver Parenchyma ◽  
Gadoxetic Acid ◽  
Hepatobiliary Phase ◽  
Liver Lesions ◽  
Enhanced Mri

A variety of patterns of enhancement of liver lesions and liver parenchyma is observed in the hepatobiliary phase (HBP) of gadoxetic acid-enhanced MRI. It is becoming increasingly apparent that many lesions may exhibit HBP enhancement. Much of the literature regarding the role of gadoxetic acid-enhanced MRI in characterising liver lesions is dichotomous, focusing on whether lesions are enhancing or non-enhancing in the HBP, rather than examining the patterns of enhancement. We provide a pattern-based description of HBP enhancement of liver parenchyma and of liver lesions. The role of OATP1B3 transporters, hepatocyte function and lesion composition in influencing patterns of HBP hyperintensity are discussed.

scholarly journals The possibility of applying magnetic resonance imaging with hepatospecific contrast agent.

2018 ◽  
Vol 96 (3) ◽  
pp. 213-221
Author(s):  
Karina K. Lomovtseva ◽  
G. G. Karmazanovsky
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Contrast Agent ◽  
Gadoxetic Acid ◽  
Focal Liver Lesions ◽  
Hepatobiliary Phase ◽  
Liver Lesions ◽  
Resonance Imaging ◽  
Cross Sectional ◽  
Extracellular Contrast Agent

Nowadays, it is difficult to overestimate the role of cross-sectional imaging in the diagnosis of focal and diffuse liver diseases. In magnetic resonance imaging (MRI) there is a unique opportunity to use hepatospecific contrast agents compared with other visualization techniques. Gadoxetic acid is a hepatospecific magnetic resonance contrast agent which has the extracellular contrast agent properties and hepatotropic property. About half of the administered dose of gadoxetic acid enters into functioning hepatocytes through cell membrane transporters and then is excreted into the bile ducts and sinusoidal space. The obtained hepatobiliary phase provides information about the structural features of the focal liver lesions, improving their detection and differential diagnosis. In addition it allows to assess the anatomical and functional conditions of the hepatobiliary system. This article describes clinical applications of MRI with gadoxetic acid and its benefits, visualization principles of different focal liver lesions in hepatobiliary phase and features of the obtained images.

Diagnosis of focal liver lesions with gadoxetic acid-enhanced MRI: Is a shortened delay time possible by adding diffusion-weighted imaging?

2013 ◽  
Vol 39 (1) ◽  
pp. 31-41 ◽  
Author(s):  
Moon Young Kim ◽  
Young Kon Kim ◽  
Hyun Jeong Park ◽  
Min Jung Park ◽  
Won Jae Lee ◽  
...  
Keyword(s):  
Delay Time ◽  
Diffusion Weighted Imaging ◽  
Gadoxetic Acid ◽  
Focal Liver Lesions ◽  
Liver Lesions ◽  
Enhanced Mri ◽  
Diffusion Weighted

Application Progress of Gd-EOB-DTPA-Enhanced MRI T1 Mapping in Hepatic Diffuse Diseases

2021 ◽  
Vol 17 ◽  
Author(s):  
Xing Wen ◽  
Xu Feng ◽  
Yao Kang ◽  
Long Xu
Keyword(s):  
Liver Function ◽  
T1 Mapping ◽  
Future Research ◽  
Focal Liver Lesions ◽  
Hepatobiliary Phase ◽  
Liver Lesions ◽  
Scanning Time ◽  
Hepatic Diseases ◽  
Enhanced Mri ◽  
New Research

Background: In recent years, T1 mapping imaging based on Gd-EOB-DTPA-enhanced magnetic resonance imaging (MRI) has resulted in new research and clinical applications in hepatic diseases. Objective: The objective of the study is to analyze, prospect, and summarize the Gd-EOB-DTPA-enhanced MRI T1 mapping technology in hepatic diseases in recent years. Main Findings: Gd-EOB-DTPA-enhanced T1 mapping has been used more frequently in liver diseases regardless of 1.5T or 3.0T MRI equipment. Volume interpolated body examination (VIBE) mapping sequence seems to be the recommended MRI scan sequence. In the evaluation of T1 value on liver function, the hepatobiliary phase 10 minutes after enhancement is the recommended time point. The fat fraction and hepatic steatosis grade based on MRI-derived biomarkers are easier to implement and popularize than a liver biopsy. Gd-EOB-DTPA-enhanced MRI T1 mapping can not only be used to evaluate the degree of liver injury, the stage of liver fibrosis, and the liver reserve function of patients with liver cirrhosis but also to distinguish focal liver lesions and predict the differentiation degree of hepatocellular carcinoma. At the same time, it has some value in predicting tumor immunohistochemical indexes, such as Ki67, CD34. Conclusion : Gd-EOB-DTPA-enhanced MRI T1 mapping has great potential in the application of diffuse and focal liver lesions. It is a quantitative study, trying to select homogeneous research objects and try to use the same standards in scanning sequence and scanning time, especially for the study of liver function, which is a focus of future research. The research on the relationship between T1 value and tumor immunohistochemical indexes is worth consideration.

Feasibility of semiautomated MR volumetry using gadoxetic acid-enhanced MRI at hepatobiliary phase for living liver donors

2013 ◽  
Vol 72 (3) ◽  
pp. 640-645 ◽  
Author(s):  
Jeongjin Lee ◽  
Kyoung Won Kim ◽  
So Yeon Kim ◽  
Bohyoung Kim ◽  
So Jung Lee ◽  
...  
Keyword(s):  
Gadoxetic Acid ◽  
Hepatobiliary Phase ◽  
Enhanced Mri ◽  
Living Liver Donors ◽  
Mr Volumetry ◽  
Liver Donors

scholarly journals Characterization of small (≤3 cm) hepatic lesions with atypical enhancement feature and hypointensity in hepatobiliary phase of gadoxetic acid-enhanced MRI in cirrhosis

Medicine ◽  
2017 ◽  
Vol 96 (29) ◽  
pp. e7278 ◽  
Author(s):  
Seung Kak Shin ◽  
Yun Soo Kim ◽  
Seung Joon Choi ◽  
Young Sup Shim ◽  
Dong Hae Jung ◽  
...  
Keyword(s):  
Gadoxetic Acid ◽  
Hepatobiliary Phase ◽  
Enhanced Mri ◽  
Hepatic Lesions
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