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Hepatobiliary MRI

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https://www.readbyqxmd.com/read/29775791/an-imaging-biomarker-for-assessing-hepatic-function-in-patients-with-primary-sclerosing-cholangitis
#1
Jennifer Schulze, Henrike Lenzen, Jan B Hinrichs, Burckhardt Ringe, Michael P Manns, Frank Wacker, Kristina I Ringe
BACKGROUND & AIMS: We aimed to evaluate the potential of hepatobiliary phase magnetic resonance imaging (MRI) as parameter for assessment of hepatocellular function in patients with primary sclerosing cholangitis (PSC). METHODS: We collected data from 111 patients (83 male, 28 female; median, 44 years old), from March 2012 through March 2016, with a confirmed diagnosis of PSC who underwent MRI evaluation before and after injection (hepatobiliary phase) of a hepatocyte-specific contrast agent (gadoxetate disodium)...
May 15, 2018: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29771932/a-multi-center-preclinical-study-of-gadoxetate-dce-mri-in-rats-as-a-biomarker-of-drug-induced-inhibition-of-liver-transporter-function
#2
Anastassia Karageorgis, Stephen C Lenhard, Brittany Yerby, Mikael F Forsgren, Serguei Liachenko, Edvin Johansson, Mark A Pilling, Richard A Peterson, Xi Yang, Dominic P Williams, Sharon E Ungersma, Ryan E Morgan, Kim L R Brouwer, Beat M Jucker, Paul D Hockings
Drug-induced liver injury (DILI) is a leading cause of acute liver failure and transplantation. DILI can be the result of impaired hepatobiliary transporters, with altered bile formation, flow, and subsequent cholestasis. We used gadoxetate dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI), combined with pharmacokinetic modelling, to measure hepatobiliary transporter function in vivo in rats. The sensitivity and robustness of the method was tested by evaluating the effect of a clinical dose of the antibiotic rifampicin in four different preclinical imaging centers...
2018: PloS One
https://www.readbyqxmd.com/read/29724434/visual-criterion-for-evaluating-hepatobiliary-phase-image-acquisition-of-gadolinium-ethoxybenzyl-diethylenetriaminepentaacetic-acid-enhanced-mri
#3
Y Takatsu, M Nakamura, S Kobayashi, T Miyati
AIM: To evaluate the hepatobiliary phase (HBP) of liver magnetic resonance imaging (MRI) using gadolinium-ethoxybenzyl-diethylenetriamine penta-acetic acid, and report a visual criterion based on the portal vein (PV), which can be used as a substitute for the quantitative liver-spleen contrast ratio (Q-LSC). MATERIALS AND METHODS: In HBP images of 167 patients, a visual criterion was established based on the sufficient contrast between the liver parenchyma (LP) and PV...
April 30, 2018: Clinical Radiology
https://www.readbyqxmd.com/read/29721686/quantitative-correlation-between-uptake-of-gd-bopta-on-hepatobiliary-phase-and-tumor-molecular-features-in-patients-with-benign-hepatocellular-lesions
#4
Edouard Reizine, Giuliana Amaddeo, Frederic Pigneur, Laurence Baranes, François Legou, Sebastien Mulé, Benhalima Zegai, Vincent Roche, Alexis Laurent, Alain Rahmouni, Julien Calderaro, Alain Luciani
PURPOSE: The purpose of our study was to correlate the quantitative analysis of benign hepatocellular tumor uptake on delayed hepatobiliary phase (HBP) imaging with the quantitative level of OATP expression. METHODS: This single-center retrospective study, which took place between September 2009 and March 2015, included 20 consecutive patients with a proven pathologic and immunohistochemical (IHC) diagnosis of FNH or HCA, including quantification of the OATP expression...
May 2, 2018: European Radiology
https://www.readbyqxmd.com/read/29713782/gd-eob-dtpa-enhanced-mri-for-quantitative-assessment-of-liver-organ-damage-after-partial-hepatic-ischaemia-reperfusion-injury-correlation-with-histology-and-serum-biomarkers-of-liver-cell-injury
#5
Tobias Getzin, Faikah Gueler, Björn Hartleben, Marcel Gutberlet, Anja Thorenz, Rongjun Chen, Martin Meier, Jan Hinrich Bräsen, Thorsten Derlin, Dagmar Hartung, Hannah A S Lang, Hermann Haller, Frank Wacker, Song Rong, Katja Hueper
OBJECTIVE: To evaluate Gd-EOB-DTPA-enhanced MRI for quantitative assessment of liver organ damage after hepatic ischaemia reperfusion injury (IRI) in mice. METHODS: Partial hepatic IRI was induced in C57Bl/6 mice (n = 31) for 35, 45, 60 and 90 min. Gd-EOB-DTPA-enhanced MRI was performed 1 day after surgery using a 3D-FLASH sequence. A subgroup of n = 9 animals with 60 min IRI underwent follow-up with MRI and histology 7 days after IRI. The total liver volume was determined by manual segmentation of the entire liver...
April 30, 2018: European Radiology
https://www.readbyqxmd.com/read/29708786/differentiation-between-hepatocellular-carcinoma-showing-hyperintensity-on-the-hepatobiliary-phase-of-gadoxetic-acid-enhanced-mri-and-focal-nodular-hyperplasia-by-ct-and-mri
#6
Azusa Kitao, Osamu Matsui, Norihide Yoneda, Ryuichi Kita, Kazuto Kozaka, Satoshi Kobayashi, Toshifumi Gabata
OBJECTIVE: The purpose of this study is to identify points useful in the imaging differentiation of hepatocellular carcinoma (HCC) showing hyperintensity on the hepatobiliary phase of gadoxetic acid-enhanced MRI and focal nodular hyperplasia (FNH) and FNH-like nodules. MATERIALS AND METHODS: We enrolled consecutive 51 pathologically diagnosed HCCs that were hyperintense on hepatobiliary phase imaging (47 patients, including 44 with cirrhosis) and 10 FNHs and eight FNH-like nodules (16 patients, including five with cirrhosis)...
April 30, 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29704934/liver-enhancement-in-healthy-dogs-after-gadoxetic-acid-administration-during-dynamic-contrast-enhanced-magnetic-resonance-imaging
#7
P Borusewicz, E Stańczyk, K Kubiak, J Spużak, K Glińska-Suchocka, M Jankowski, J Nicpoń, P Podgórski
Dynamic contrast enhanced (DCE)-magnetic resonance imaging (MRI) consists of acquisition of native baseline images, followed by a series of acquisitions performed during and after administration of a contrast medium. DCE-MRI, in conjunction with hepatobiliary-specific contrast media, such as gadoxetic acid (GD-EOB-DTPA), allows for precise characterisation of the enhancement pattern of the hepatic parenchyma following administration of the contrast agent. The aim of the study was to assess the pattern of temporal resolution contrast enhancement of the hepatic parenchyma following administration of GD-EOB-DTPA and to determine the optimal time window for post-contrast assessment of the liver...
May 2018: Veterinary Journal
https://www.readbyqxmd.com/read/29686569/pedunculated-focal-nodular-hyperplasia-in-a-healthy-toddler
#8
Juhi Koolwal, Krista L Birkemeier, Riyam T Zreik, Kelly D Mattix
Focal nodular hyperplasia (FNH) is a benign hepatic tumor rarely seen in pediatric patients, with most cases reported in school-aged children with a history of malignancy, liver disease, chemotherapy, or hematopoietic stem cell therapy. Despite having advanced radiographic imaging, diagnosing FNH before surgical resection can be difficult. We report a rare case of pedunculated FNH presenting as a large abdominal mass palpated on physical exam in a healthy 3-year-old girl with no history of malignancy or underlying liver disease...
January 2018: Proceedings of the Baylor University Medical Center
https://www.readbyqxmd.com/read/29651764/can-functional-parameters-from-hepatobiliary-phase-of-gadoxetate-mri-predict-clinical-outcomes-in-patients-with-cirrhosis
#9
Kumar Sandrasegaran, Enming Cui, Reem Elkady, Pauley Gasparis, Gitasree Borthakur, Mark Tann, Suthat Liangpunsakul
OBJECTIVES: To determine the value of quantitative parameters of gadoxetate-enhanced magnetic resonance imaging (MRI) in predicting prognosis in patients with cirrhosis. METHODS: A cohort of 63 cirrhotic patients who had gadoxetate MRI and 2-year clinical follow-up was enrolled. Enhancement ratio (ER), contrast enhancement index (CEI) and contrast enhancement spleen index (CES) were calculated. The usefulness of these parameters and clinical scores, such as Child-Pugh score (CPS) and model for end stage liver disease (MELD), in predicting adverse outcomes, such as variceal bleeding (VB), hepatic encephalopathy (HE) and mortality at 2 years were evaluated...
April 12, 2018: European Radiology
https://www.readbyqxmd.com/read/29650849/-a-case-of-resected-reactive-lymphoid-hyperplasia-of-liver-suspected-of-hepatocellular-carcinoma
#10
Kei Nakamura, Akira Sougawa, Tomoyuki Nagata, Satoshi Mochizuki, Yuen Nakase, Shozo Kitai, Seishirou Inaba
A 64-year-old woman who had chronic type C viral hepatitis was referred with a liver tumor detected by magnetic resonance imaging(MRI). She had a history of rheumatoid arthritis which was treated by methotrexate. Ethoxybenzyl-MRI(EOBMRI) showed a low signal in the T1-weighted imaging, a high signal in the T2-weighted imaging and a low signal in the hepatobiliary phase. The tumor was 7 millimeters in diameter at S4, and exhibited enhancement in the arterial phase and wash out in the portal phase by contrast enhanced CT...
April 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29606926/prediction-of-microvascular-invasion-in-hepatocellular-carcinoma-preoperative-gd-eob-dtpa-dynamic-enhanced-mri-and-histopathological-correlation
#11
Mengqi Huang, Bing Liao, Ping Xu, Huasong Cai, Kun Huang, Zhi Dong, Ling Xu, Zhenpeng Peng, Yanji Luo, Keguo Zheng, Baogang Peng, Zi-Ping Li, Shi-Ting Feng
Objective: To investigate the imaging features observed in preoperative Gd-EOB-DTPA-dynamic enhanced MRI and correlated with the presence of microvascular invasion (MVI) in hepatocellular carcinoma (HCC) patients. Methods: 66 HCCs in 60 patients with preoperative Gd-EOB-DTPA-dynamic enhanced MRI were retrospectively analyzed. Features including tumor size, signal homogeneity, tumor capsule, tumor margin, peritumor enhancement during mid-arterial phase, peritumor hypointensity during hepatobiliary phase, signal intensity ratio on DWI and apparent diffusion coefficients (ADC), T1 relaxation times, and the reduction rate between pre- and postcontrast enhancement images were assessed...
2018: Contrast Media & Molecular Imaging
https://www.readbyqxmd.com/read/29571804/diagnosis-and-staging-of-hepatocellular-carcinoma-hcc-current-guidelines
#12
Carmen Ayuso, Jordi Rimola, Ramón Vilana, Marta Burrel, Anna Darnell, Ángeles García-Criado, Luis Bianchi, Ernest Belmonte, Carla Caparroz, Marta Barrufet, Jordi Bruix, Concepción Brú
One of the key strategies to improve the prognosis of HCC, beside prevention, is to diagnose the tumor in early stages, when the patient is asymptomatic and the liver function is preserved, because in this clinical situation effective therapies with survival benefit can be applied. Imaging techniques are a key tool in the surveillance and diagnosis of HCC. Screening should be based in US every 6 months and non-invasive diagnostic criteria of HCC based on imaging findings on dynamic-MR and/or dynamic-CT have been validated and thus, accepted in clinical guidelines...
April 2018: European Journal of Radiology
https://www.readbyqxmd.com/read/29549474/contributions-of-magnetic-resonance-imaging-to-gastroenterological-practice-mris-for-gis
#13
REVIEW
Christopher G Roth, Dina Halegoua-De Marzio, Flavius F Guglielmo
MRI has transformed from the theoretical, investigative realm to mainstream clinical medicine over the past four decades and has become a core component of the diagnostic toolbox in the practice of gastroenterology (GI). Its success is attributable to exquisite contrast and the ability to isolate specific proton species through the use of different pulse sequences (i.e., T1-weighted, T2-weighted, diffusion-weighted) and exploiting extracellular and hepatobiliary contrast agents. Consequently, MRI has gained preeminence in various GI clinical applications: liver and pancreatic lesion evaluation and detection, liver transplantation evaluation, pancreatitis evaluation, Crohn's disease evaluation (using MR enterography) rectal cancer staging and perianal fistula evaluation...
March 16, 2018: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/29546493/evolution-of-indeterminate-hepatocellular-nodules-at-gd-eob-dpta-enhanced-mri-in-cirrhotic-patients
#14
Massimo Galia, Francesco Agnello, Gianvincenzo Sparacia, Domenica Matranga, Domenico Albano, Massimo Midiri, Roberto Lagalla
PURPOSE: To retrospectively analyze the evolution of indeterminate hepatocellular nodules in cirrhotic patients on serial Gd-EOB-DPTA-enhanced MRI, and to identify predictors of HCC development. MATERIALS AND METHODS: This IRB approved study included 33 cirrhotic patients with 69 indeterminate hepatocellular nodules (mean diameter 1.1 cm) at baseline Gd-EOB-DPTA-enhanced MRI and a Gd-EOB-DPTA-enhanced-MRI follow-up of at least 2 years. Two radiologists evaluated size and signal intensity of each nodule at baseline and follow-up...
March 15, 2018: La Radiologia Medica
https://www.readbyqxmd.com/read/29490696/imaging-features-of-fibrolamellar-hepatocellular-carcinoma-in-gadoxetic-acid-enhanced-mri
#15
Viktoria Palm, Ruofan Sheng, Philipp Mayer, Karl-Heinz Weiss, Christoph Springfeld, Arianeb Mehrabi, Thomas Longerich, Anne Katrin Berger, Hans-Ulrich Kauczor, Tim Frederik Weber
BACKGROUND: Fibrolamellar hepatocellular carcinoma (FLC) is a rare malignancy occurring in young patients without cirrhosis. Objectives of our study were to analyze contrast material uptake in hepatobiliary phase imaging (HBP) in gadoxetic acid-enhanced liver MRI in patients with FLC and to characterize imaging features in sequence techniques other than HBP. METHODS: In this retrospective study on histology-proven FLC, contrast material uptake in HBP was quantitatively assessed by calculating the corrected FLC enhancement index (CEI) using mean signal intensities of FLC and lumbar muscle on pre-contrast imaging and HBP, respectively...
March 1, 2018: Cancer Imaging: the Official Publication of the International Cancer Imaging Society
https://www.readbyqxmd.com/read/29482979/one-day-diagnosis-for-hepatobiliary-and-pancreatic-lesions-an-innovative-patient-centered-care-pathway-organization
#16
P Pessaux, V Faucher, R Cuny, M Stephan, F Klein, C González, S Blanes, E Leost, B Delattre, C Lugiez
OBJECTIVE: Reducing the time required for diagnosis is one of the major challenges to improving and accelerating the management of patients. The aim of this work is to describe an organizational innovation in the management of patients with hepatobiliary or pancreatic diseases, and to report the initial results. MATERIALS AND METHODS: A multidisciplinary and multi-professional working group designed and instituted a patient-centered organizational system that optimizes the investigation of liver and pancreatic diseases, in order to achieve diagnosis in one day...
February 23, 2018: Journal of Visceral Surgery
https://www.readbyqxmd.com/read/29460044/mri-features-of-primary-hepatic-lymphoma
#17
Stefano Colagrande, Linda Calistri, Giulia Grazzini, Cosimo Nardi, Simone Busoni, Giovanni Morana, Luigi Grazioli
PURPOSE: Our retrospective study sought to describe the spectrum of magnetic resonance imaging (MRI) features of primary hepatic lymphoma (PHL) by analyzing its morphological aspects, signal intensity before and after contrast agent (CA) administration, and diffusion-weighted imaging (DwI) with the apparent diffusion coefficient (ADC) values. METHODS: A retrospective analysis was conducted on 25 patients with pathologically proven PHL who underwent MRI between January 2011 and December 2016...
February 19, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29437912/new-hallmark-of-hepatocellular-carcinoma-early-hepatocellular-carcinoma-and-high-grade-dysplastic-nodules-on-gd-eob-dtpa-mri-in-patients-with-cirrhosis-a-new-diagnostic-algorithm
#18
Matteo Renzulli, Maurizio Biselli, Stefano Brocchi, Alessandro Granito, Francesco Vasuri, Francesco Tovoli, Elisa Sessagesimi, Fabio Piscaglia, Antonietta D'Errico, Luigi Bolondi, Rita Golfieri
OBJECTIVE: Many improvements have been made in diagnosing hepatocellular carcinoma (HCC), but the radiological hallmarks of HCC have remained the same for many years. We prospectively evaluated the imaging criteria of HCC, early HCC and high-grade dysplastic nodules (HGDNs) in patients under surveillance for chronic liver disease, using gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid (Gd-EOB-DTPA) MRI and diffusion-weighted imaging. DESIGN: Our study population included 420 nodules >1 cm in 228 patients...
February 3, 2018: Gut
https://www.readbyqxmd.com/read/29410377/hepatobiliary-mri-as-novel-selection-criteria-in-liver-transplantation-for-hepatocellular-carcinoma
#19
Ah Yeong Kim, Dong Hyun Sinn, Woo Kyoung Jeong, Young Kon Kim, Tae Wook Kang, Sang Yun Ha, Chul Keun Park, Gyu Seong Choi, Jong Man Kim, Choon Hyuck David Kwon, Jae-Won Joh, Min-Ji Kim, Insuk Sohn, Sin-Ho Jung, Seung Woon Paik, Won Jae Lee
BACKGROUND & AIMS: Hepatobiliary magnetic resonance imaging (MRI) provides additional information beyond the size and number of tumours, and may have prognostic implications. We examined whether pretransplant radiological features on MRI could be used to stratify the risk of tumour recurrence after liver transplantation (LT) for hepatocellular carcinoma (HCC). METHODS: A total of 100 patients who had received a liver transplant and who had undergone preoperative gadoxetic acid-enhanced MRI, including the hepatobiliary phase (HBP), were reviewed for tumour size, number, and morphological type (e...
March 5, 2018: Journal of Hepatology
https://www.readbyqxmd.com/read/29391764/optimization-of-hepatobiliary-phase-delay-time-of-gd-eob-dtpa-enhanced-magnetic-resonance-imaging-for-identification-of-hepatocellular-carcinoma-in-patients-with-cirrhosis-of-different-degrees-of-severity
#20
Jian-Wei Wu, Yue-Cheng Yu, Xian-Li Qu, Yan Zhang, Hong Gao
AIM: To optimize the hepatobiliary phase delay time (HBP-DT) of Gd-EOB-DTPA-enhanced magnetic resonance imaging (GED-MRI) for more efficient identification of hepatocellular carcinoma (HCC) occurring in different degrees of cirrhosis assessed by Child-Pugh (CP) score. METHODS: The liver parenchyma signal intensity (LPSI), the liver parenchyma (LP)/HCC signal ratios, and the visibility of HCC at HBP-DT of 5, 10, 15, 20, and 25 min ( i.e ., DT-5, DT-10, DT-15, DT-20, and DT-25 ) after injection of Gd-EOB-DTPA were collected and analyzed in 73 patients with cirrhosis of different degrees of severity (including 42 patients suffering from HCC) and 18 healthy adult controls...
January 21, 2018: World Journal of Gastroenterology: WJG
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