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Liver stiffness

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https://www.readbyqxmd.com/read/28107385/evaluating-the-significance-of-viscoelasticity-in-diagnosing-early-stage-liver-fibrosis-with-transient-elastography
#1
Jingxin Zhao, Fei Zhai, Jun Cheng, Qiong He, Jianwen Luo, Xueping Yang, Jinhua Shao, Huichun Xing
Transient elastography quantifies the propagation of a mechanically generated shear wave within a soft tissue, which can be used to characterize the elasticity and viscosity parameters of the tissue. The aim of our study was to combine numerical simulation and clinical assessment to define a viscoelastic index of liver tissue to improve the quality of early diagnosis of liver fibrosis. This is clinically relevant, as early fibrosis is reversible. We developed an idealized two-dimensional axisymmetric finite element model of the liver to evaluate the effects of different viscoelastic values on the propagation characteristics of the shear wave...
2017: PloS One
https://www.readbyqxmd.com/read/28107286/liver-stiffness-measured-by-shear-wave-elastography-for-evaluating-intra-hepatic-portal-hypertension-in-children
#2
Hee Mang Yoon, So Yeon Kim, Kyung Mo Kim, Seak Hee Oh, Gi-Young Ko, Yangsoon Park, Jin Seong Lee, Ah Young Jung, Young Ah Cho
OBJECTIVES: To correlate liver stiffness (LS) and hepatic venous-pressure gradient (HVPG) and to evaluate the diagnostic performance of shear-wave elastography (SWE) for predicting clinically significant portal hypertension in children with suspected liver diseases, in consideration of the reliability criteria. METHODS: We identified 33 SWEs from 32 children who underwent HVPG measurement within two weeks between June 2012 and October 2015. The correlation between LS and HVPG was assessed...
January 20, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28105260/shear-wave-elastography-in-hepatitis-c-patients-before-and-after-antiviral-therapy
#3
Toshikuni Suda, Osamu Okawa, Rion Masaoka, Yoshinori Gyotoku, Naohiko Tokutomi, Yasumi Katayama, Masaya Tamano
AIM: To investigate shear wave (SW) propagation velocity in patients with untreated hepatitis C and patients with sustained virological response (SVR). METHODS: A total of 136 hepatitis C patients [85 patients who had not received antiviral therapy (naïve group) and 51 patients who had received antiviral therapy and subsequently achieved SVR of at least 24 wk (SVR group)] and 58 healthy volunteers and outpatients without liver disease (control group) underwent evaluation of liver stiffness by SW elastography (SWE)...
January 8, 2017: World Journal of Hepatology
https://www.readbyqxmd.com/read/28104976/clinical-role-of-non-invasive-assessment-of-portal-hypertension
#4
EDITORIAL
Massimo Bolognesi, Marco Di Pascoli, David Sacerdoti
Measurement of portal pressure is pivotal in the evaluation of patients with liver cirrhosis. The measurement of the hepatic venous pressure gradient represents the reference method by which portal pressure is estimated. However, it is an invasive procedure that requires significant hospital resources, including experienced staff, and is associated with considerable cost. Non-invasive methods that can be reliably used to estimate the presence and the degree of portal hypertension are urgently needed in clinical practice...
January 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28097068/hepatic-fibrosis-and-factors-associated-with-liver-stiffness-in-hiv-mono-infected-individuals
#5
Mihály Sulyok, Tamás Ferenci, Mihály Makara, Gábor Horváth, János Szlávik, Zsófia Rupnik, Luca Kormos, Zsuzsanna Gerlei, Zita Sulyok, István Vályi-Nagy
BACKGROUND: Liver disease has become an important cause of morbidity and mortality even in those HIV-infected individuals who are devoid of hepatitis virus co-infection. The aim of this study was to evaluate the degree of hepatic fibrosis and the role of associated factors using liver stiffness measurement in HIV mono-infected patients without significant alcohol intake. METHODS: We performed a cross-sectional study of 101 HIV mono-infected patients recruited prospectively from March 1, 2014 to October 30, 2014 at the Center for HIV, St István and St László Hospital, Budapest, Hungary...
2017: PeerJ
https://www.readbyqxmd.com/read/28093695/serum-zinc-deficiency-and-its-relation-to-liver-fibrosis-in-chronic-hcv-a-real-life-egyptian-study
#6
Dalia A Omran, Samar Kamal Darweesh, Hanan Fouad, Mohamed Mahmoud, Sameh Saif, Azza Fared, Mohamed Hassany, Lamiaa Mobarak, Mahmoud A El-Tahawy, Ayman Yosry
Zinc is essential for the activation of approximately 300 metallo-enzymes. Serum and hepatic zinc is decreased in chronic liver disease patients, and zinc depletion has been suggested to accelerate liver fibrosis. The study was designed to assess Zinc status in chronic HCV Egyptian patients and its relationship to fibrosis stage diagnosed by FibroScan. This was a cross-sectional study on 297 Egyptian patients with naïve chronic HCV. All patients underwent laboratory tests (including assessment of serum Zinc) and liver stiffness measurement (LSM) by Transient Elastography (FibroScan(®))...
January 16, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28081023/a-case-study-of-hemochromatosis-and-conflicting-point-shear-wave-measurements-in-the-assessment-of-liver-fibrosis
#7
Tal Cohen, Richard G Barr
There are multiple factors that affect the shear wave speed in the assessment of liver stiffness. In this case report, we present a case of hemochromatosis that has elevated liver stiffness suggestive of significant fibrosis or cirrhosis; however on liver biopsy, no fibrosis was identified. This article will discuss the possibility that liver iron deposition may affect SWE measurements of the liver, leading to inaccurate assessment of liver fibrosis. In these cases, a liver biopsy may be required for accurate liver assessment...
January 9, 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28078997/lipoprotein-a-and-cardiovascular-risk-the-show-must-go-on
#8
Niki Katsiki, Khalid Al-Rasadi, Dimitri P Mikhailidis
Lipoprotein (a) [Lp(a)] is an independent but moderate, predictor for coronary heart disease (CHD) prevalence and severity. Several established and emerging cardiovascular (CV) risk factors including age, gender, ethnicity, smoking, dyslipidemia, hypertension, obesity, type 2 diabetes mellitus, alcohol consumption, arterial stiffness and hyperuricemia have been linked to Lp(a) metabolism. Apart from CHD, Lp(a) has been also associated with non-cardiac vascular diseases and diseases associated with increased CV risk such as chronic kidney disease, metabolic syndrome, non-alcoholic fatty liver disease, erectile dysfunction, obstructive sleep apnea syndrome, inflammatory bowel diseases and human immunodeficiency virus infection...
January 12, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28075394/coffee-intake-is-associated-with-a-lower-liver-stiffness-in-patients-with-non-alcoholic-fatty-liver-disease-hepatitis-c-and-hepatitis-b
#9
Alexander Hodge, Sarah Lim, Evan Goh, Ophelia Wong, Philip Marsh, Virginia Knight, William Sievert, Barbora de Courten
There is emerging evidence for the positive effects or benefits of coffee in patients with liver disease. We conducted a retrospective cross-sectional study on patients with non-alcoholic fatty liver disease (NAFLD), hepatitis C virus (HCV), and hepatitis B virus (HBV) infection to determine the effects of coffee intake on a non-invasive marker of liver fibrosis: liver stiffness assessed by transient elastography (TE). We assessed coffee and tea intake and measured TE in 1018 patients with NAFLD, HCV, and HBV (155 with NAFLD, 378 with HCV and 485 with HBV)...
January 10, 2017: Nutrients
https://www.readbyqxmd.com/read/28073410/-correlation-of-fibrotouch-and-fibroscan-with-the-stage-of-primary-biliary-cirrhosis
#10
Y G Zhang, S X Zhao, G D Zhou, W C Li, W G Ren, H J Du, R Q Wang, Y M Nan
Objective: To investigate the diagnostic value of FibroTouch and FibroScan for the stage of primary biliary cirrhosis (PBC). Methods: A total of 66 PBC patients who visited our hospital from January 2014 to March 2016 were enrolled, and all the patients underwent liver biopsy and FibroTouch and FibroScan tests. Liver stiffness measurement (LSM) was used to assess fibrosis degree, and the receiver operating characteristic (ROC) curve was used to compare the cut-off values, sensitivities, and specificities of these two methods in determining fibrosis stage...
December 20, 2016: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/28070199/performance-and-utility-of-transient-elastography-and-non-invasive-markers-of-liver-fiibrosis-in-patients-with-autoimmune-hepatitis-a-single-centre-experience
#11
Olympia E Anastasiou, Matthias Büchter, Hideo A Baba, Johannes Korth, Ali Canbay, Guido Gerken, Alisan Kahraman
OBJECTIVES: Autoimmune hepatitis (AIH) is a relatively rare cause of hepatic dysfunction, which can lead to acute liver failure (ALV) and cirrhosis if not treated. The performance of transient elastography (TE) compared to liver biopsy has been evaluated in many liver diseases. The aim of the present study was to evaluate the performance of TE and other non-invasive markers for liver fiibrosis in patients with biopsy-proven AIH. METHODS: Fifty-three patients who were treated at the department of gastroenterology and hepatology of the University Clinic Essen from 2008 to 2013 included in this retrospective study...
November 2016: Hepatitis Monthly
https://www.readbyqxmd.com/read/28063644/are-transient-and-shear-wave-elastography-useful-tools-in-gaucher-disease
#12
Muriel Webb, Ari Zimran, Tama Dinur, Oren Shibolet, Stella Levit, David M Steinberg, Ophira Salomon
Up to now, there are no reliable biochemical markers or imaging that could reveal early tissue damage in Gaucher disease. Therefore, we addressed whether elastography technique can serve as a tool for evaluating patients with Gaucher disease. The study included 42 patients with Gaucher disease type I and 33 patients with liver cirrhosis as well as 22 healthy volunteers. Ultrasound and Doppler examination was performed on each participant prior to apply transient and 2D shear wave elastography. In Gaucher disease the median stiffness of the spleen as assessed by transient elastography (TE) and shear wave elastography (SWE) was 35KPa and 22KPa respectively in contrast to the median stiffness of healthy controls (16...
December 23, 2016: Blood Cells, Molecules & Diseases
https://www.readbyqxmd.com/read/28061755/high-serum-resistin-associates-with-intrahepatic-inflammation-and-necrosis-an-index-of-disease-severity-for-patients-with-chronic-hbv-infection
#13
Zhongji Meng, Yonghong Zhang, Zhiqiang Wei, Ping Liu, Jian Kang, Yinhua Zhang, Deqiang Ma, Changzheng Ke, Yue Chen, Jie Luo, Zuojiong Gong
BACKGROUND: Studies have revealed that resistin plays a role as an intrahepatic cytokine with proinflammatory activities. This study investigated the association between serum resistin and fibrosis severity and the possible marker role of resistin in the inflammatory process of chronic hepatitis B. METHODS: In this study, 234 subjects with HBV infection were retrospectively selected, including 85 patients with chronic hepatitis B (CHB), 70 patients with HBV-related liver cirrhosis (LC-B), and 79 patients with HBV-related liver failure (LF-B)...
January 7, 2017: BMC Gastroenterology
https://www.readbyqxmd.com/read/28056459/influence-of-liver-inflammation-on-liver-stiffness-measurement-in-patients-with-autoimmune-hepatitis-evaluation-by-combinational-elastography
#14
Norihisa Yada, Toshiharu Sakurai, Tomohiro Minami, Tadaaki Arizumi, Masahiro Takita, Satoru Hagiwara, Hiroshi Ida, Kazuomi Ueshima, Naoshi Nishida, Masatoshi Kudo
OBJECTIVE: In order to evaluate the influence of liver inflammation on liver stiffness measurement (LSM) by the simultaneous use of shear wave and strain imaging (combinational elastography), shear wave and strain imaging were compared before and after initial therapy for autoimmune hepatitis (AIH). METHODS: Nine AIH patients initially treated with steroid were enrolled. Transient elastography and real-time tissue elastography were performed just before and 1 month after the start of initial steroid treatment...
January 6, 2017: Oncology
https://www.readbyqxmd.com/read/28052132/association-between-promoter-hypomethylation-and-overexpression-of-autotaxin-with-outcome-parameters-in-biliary-atresia
#15
Wanvisa Udomsinprasert, Nakarin Kitkumthorn, Apiwat Mutirangura, Voranush Chongsrisawat, Yong Poovorawan, Sittisak Honsawek
OBJECTIVE: Biliary atresia (BA) is a progressive fibroinflammatory liver disease. Autotaxin (ATX) has a profibrotic effect resulting from lysophosphatidic acid activity. The purpose of this study was to examine ATX expression and ATX promoter methylation in peripheral blood leukocytes and liver tissues from BA patients and controls and investigate their associations with outcome parameters in BA patients. METHODS: A total of 130 subjects (65 BA patients and 65 age-matched controls) were enrolled...
2017: PloS One
https://www.readbyqxmd.com/read/28050235/primary-liver-injury-and-delayed-resolution-of-liver-stiffness-after-alcohol-detoxification-in-heavy-drinkers-with-the-pnpla3-variant-i148m
#16
Vanessa Rausch, Teresa Peccerella, Carolin Lackner, Eray Yagmur, Helmut-Karl Seitz, Thomas Longerich, Sebastian Mueller
AIM: To investigate the influence of PNPLA3 genotype in heavy drinkers on serum markers and liver stiffness (LS) during alcohol withdrawal and its association with histology. METHODS: Caucasian heavy drinkers (n = 521) with a mean alcohol consumption of 192.1 g/d (median alcohol consumption: 169.0 g/d; 95%CI: 179.0-203.3) were enrolled at the Salem Medical Center, University of Heidelberg. LS was measured by transient elastography (Fibroscan, Echosens SA, Paris, France)...
December 18, 2016: World Journal of Hepatology
https://www.readbyqxmd.com/read/28048644/tu-h-campus-iep3-05-computer-aided-diagnosis-employing-automatically-segmented-color-specific-regions-in-ultrasound-shear-wave-elastography-for-the-assessment-of-chronic-liver-disease
#17
I Gatos, S Tsantis, G C Kagadis
PURPOSE: To assess the role of an automated Computer Aided Diagnosis (CAD) system in differentiation of Healthy Subjects to Chronic Liver Disease (CLD) Patients in terms of liver fibrosis (F0-F4), using Ultrasound Shear Wave Elastography (SWE). METHODS: Clinical Dataset consisted of 125 subjects, 55 Healthy (F0) whom condition was validated with Normal Biochemical Markers and clear Clinical History, and 70 with CLD (F1-F4) whom condition was validated with Liver Biopsy...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048591/tu-h-206-09-acceptance-testing-of-ultrasound-systems-for-shear-wave-elastography-measurements
#18
Z Long, D Tradup, P Song, S Stekel, S Chen, N Hangiandreou
PURPOSE: Acceptance testing of shear wave elastography on ten ultrasound systems is reported. Furthermore, variations in testing procedures related to coupling medium, number of operators, and phantom homogeneity were investigated. METHODS: Shear wave speed measurements were made on ten systems (GE LOGIQ E9 XDclear 2.0 ultrasound scanner with C1-6 and 9L transducers). Measurements were acquired using the CIRS Model 039 shear wave liver fibrosis phantoms ("soft" and "hard" phantoms, with stiffness of ∼3...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047545/we-fg-206-11-measuring-mechanical-biomarkers-of-liver-tumors-using-tagged-mri
#19
X Xia, M Zhu, L Sun, M Sacks, G Genin, C Hu, L Guo, Y Feng
PURPOSE: Early detection of liver cancer improves patient prognosis dramatically. We propose a novel approach in which liver deformation is tracked during the cardiac cycle using tagged MRI. Strain concentrations that arise from material mismatches between the tumor and non-tumor regions were compared in patients with liver tumors. METHODS: Tagged MR images were acquired from four liver cancer patients in the coronal plane in a 3.0T scanner. In each cardiac cycle, a total of 25 time frames were acquired with a FOV of 289×359 mm2 and a resolution of 180×224...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28039886/combined-magnetic-resonance-elastography-and-collagen-molecular-magnetic-resonance-imaging-accurately-stage-liver-fibrosis-in-a-rat-model
#20
Bo Zhu, Lan Wei, Nicholas Rotile, Helen Day, Tyson Rietz, Christian T Farrar, Gregory Y Lauwers, Kenneth K Tanabe, Bruce Rosen, Bryan C Fuchs, Peter Caravan
: Hepatic fibrosis is associated with an overproduction of matrix proteins and a pathological increase of liver stiffness. Noninvasive magnetic resonance (MR) quantification of matrix can be assessed with a collagen-binding molecular MR probe and stiffness by MR elastography, complementary techniques. This study used both imaging techniques to more accurately stage hepatic fibrosis in a rat model. Thirty rats with varying levels of diethylnitrosamine-induced liver fibrosis were imaged before and 45 minutes after injection of collagen-specific probe EP-3533...
November 7, 2016: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
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