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transient elastography

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https://www.readbyqxmd.com/read/29774454/analysis-of-three-ultrasound-elastography-techniques-for-grading-liver-fibrosis-in-patients-with-chronic-hepatitis-b
#1
Xinping Ren, Shujun Xia, Zhongxin Ni, Weiwei Zhan, Jianqiao Zhou
BACKGROUND: Evaluation of liver fibrosis is important to assess prognosis and guide the treatment for chronic hepatitis B. OBJECTIVE: To analyze and compare transient, point, and two-dimensional (2D) shear wave elastography techniques in grading the liver fibrosis. METHODS: Based on the severity of liver inflammation and fibrosis (Scheuer criteria), 158 patients with chronic hepatitis B were assigned into group 1 (either G or S classification < 2) or group 2 (either G or S classification ≥ 2)...
May 17, 2018: La Radiologia Medica
https://www.readbyqxmd.com/read/29768686/prevalence-and-predictive-factors-of-moderate-severe-liver-steatosis-in-chronic-hepatitis-c-chc-infected-patients-evaluated-with-controlled-attenuation-parameter-cap
#2
Ana Carolina Cardoso, Renata M Perez, Claudio de Figueiredo-Mendes, Nathalie Carvalho Leite, Henrique Sergio Moraes Coelho, Cristiane A Villela-Nogueira
A novel controlled attenuation parameter (CAP) using FibroScan® has been developed for assessment of liver steatosis. The aim was to evaluate the frequency and associated factors for moderate/severe steatosis evaluated by CAP in CHC patients submitted to transient elastography (TE) by FibroScan® . CHC patients underwent TE with CAP evaluation. The classification of steatosis was defined as: CAP < 222 dB/m = S0; CAP ≥ 222 dB/m and <233dB /m = S1; ≥233 dB/m <290dB/m = S2 and >= 290 dB/m = S3...
May 16, 2018: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/29768330/risk-factors-for-osteoporosis-in-liver-cirrhosis-patients-measured-by-transient-elastography
#3
Jian-Ping Zheng, Hai-Xiong Miao, Shao-Wei Zheng, Wei-le Liu, Chu-Qun Chen, Hao-Bo Zhong, Sheng-Fa Li, Yong-Ping Fang, Chun-Han Sun
Osteoporosis or osteopenia is a common complication in patients with cirrhosis, but little is known about the risk factors for the occurrence of osteoporosis.Patients with liver cirrhosis due to chronic virus infection and alcoholic abuse were enrolled. Bone mineral density (BMD) was determined using dual-energy x-ray absorptiometry (DXA). Osteoporosis was diagnosed according to WHO criteria. The severity of liver stiffness was measured by Fibroscan. Demographic data, such as age, gender, weight, height, and body mass index (BMI), were collected...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29746172/pharmacological-decrease-of-liver-stiffness-is-pressure-related-and-predicts-long-term-clinical-outcome
#4
Felix Piecha, Mattias Mandorfer, Teresa Peccerella, Ann-Kathrin Ozga, Tanja Poth, Anna Vonbank, Helmut Karl Seitz, Vanessa Rausch, Thomas Reiberger, Sebastian Mueller
Liver stiffness (LS) as measured by transient elastography is increasingly used to non-invasively assess liver fibrosis. However, LS is efficiently modulated by confounders like arterial and portal pressure (PP). We here study the effect of acute hemodynamic changes on LS (measured by µFibroscan) in a rodent model of cirrhosis in response to pharmacological modulation of PP by losartan, NO-donors and propranolol. Additionally, changes of LS and the hepatic venous pressure gradient (HVPG) under propranolol therapy were assessed with regard to clinical outcomes in a human cohort of n=38 cirrhotic patients...
May 10, 2018: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/29742149/the-il7ra-rs6897932-polymorphism-is-associated-with-progression-of-liver-fibrosis-in-patients-with-chronic-hepatitis-c-repeated-measurements-design
#5
María Ángeles Jiménez-Sousa, Ana Zaida Gómez-Moreno, Daniel Pineda-Tenor, Luz Maria Medrano, Juan José Sánchez-Ruano, Amanda Fernández-Rodríguez, Tomas Artaza-Varasa, José Saura-Montalbán, Sonia Vázquez-Morón, Pablo Ryan, Salvador Resino
The polymorphisms at the α-chain of the IL-7 receptor (IL7RA) have been related to T-cell homeostasis and development and may contribute to immune system deregulation. In the present study, we analyzed the association between IL7RA polymorphisms and the progression of liver fibrosis in patients infected with HCV. We carried out a retrospective study with a design consisting of repeated measurements in 187 HCV-infected patients, to study the risk prediction of liver fibrosis progression using genetic factors...
2018: PloS One
https://www.readbyqxmd.com/read/29730676/interconversion-of-elasticity-measurements-between-two-dimensional-shear-wave-elastography-and-transient-elastography
#6
Yeun-Yoon Kim, Myung-Joon Kim, Hyun Joo Shin, Haesung Yoon, Ha Yan Kim, Mi-Jung Lee
AIMS: To enable comparison and interconversion of elasticity measurements between two-dimensional (2D) shear wave elastography (SWE) and transient elastography (TE). MATERIALS AND METHODS: Elasticities of three phantoms were measured by 2D SWE (supersonic shear imaging) using four probes and TE using two probes. We performed regression analyses to evaluate correlation between the measurements and phantom elasticities, and make converting equations. In pediatric biliary atresia patients who had stiffness measurements by both 2D SWE and TE within 1-year interval, TE measurements were retrospectively converted into correlating 2D SWE values...
May 2, 2018: Medical Ultrasonography
https://www.readbyqxmd.com/read/29729368/a-combined-model-based-on-spleen-stiffness-measurement-and-baveno-vi-criteria-to-rule-out-high-risk-varices-in-advanced-chronic-liver-disease
#7
Antonio Colecchia, Federico Ravaioli, Giovanni Marasco, Agostino Colli, Elton Dajti, Annarita Di Biase, Maria Letizia Bacchi Reggiani, Annalisa Berzigotti, Massimo Pinzani, Davide Festi
BACKGROUND & AIMS: Recently, Baveno VI guidelines suggested that esophagogastroduodenoscopy (EGD) can be avoided in patients with cACLD who have a liver stiffness measurement (LSM) < 20 kPa and platelet count >150,000/mm3 . We aimed to: assess the performance of spleen stiffness measurement (SSM) in ruling out patients with high-risk varices (HRV); validate Baveno VI criteria in a large population and assess how the sequential use of Baveno VI criteria and SSM could safely avoid the need for endoscopy...
May 2, 2018: Journal of Hepatology
https://www.readbyqxmd.com/read/29727388/controlled-attenuation-parameter-for-steatosis-grading-in-chronic-hepatitis-c-compared-with-digital-morphometric-analysis-of-liver-biopsy-impact-of-individual-elastography-measurement-quality
#8
Leandro C Mendes, Paulo A Ferreira, Noelle Miotto, Letícia Zanaga, Maria S Lazarini, Eduardo S L Gonçales, Marcelo N Pedro, Fernando L Gonçales, Raquel S B Stucchi, Aline G Vigani
BACKGROUND AND OBJECTIVE: Controlled attenuation parameter (CAP) diagnostic performance for steatosis grading has been controversial and considerable observer-related variability in liver biopsy has been reported. This is a subanalysis of a larger chronic hepatitis C study on noninvasive fibrosis staging. MATERIALS AND METHODS: Patients were prospectively enrolled for paired liver biopsy and transient elastography. Biopsy fragments were subjected to digital morphometric steatosis quantification...
April 30, 2018: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29727382/evaluation-of-accuracy-of-elastography-point-quantification-versus-other-noninvasive-modalities-in-staging-of-fibrosis-in-chronic-hepatitis-c-virus-patients
#9
Rabab Fouad, Tamer Elbaz, Shereen Abdel Alem, Aisha Elsharkawy, Mohamed Negm, Marwa Khairy, Mohamed Hassany, Ahmed Cordie, Wafaa El Akel, Gamal Esmat
BACKGROUND: Elastography point quantification (ElastPQ) is a newly noninvasive method incorporated into a conventional ultrasound system for staging of liver fibrosis in patients with chronic liver diseases. AIM: The aim was to evaluate ElastPQ reproducibility and its accuracy in staging of liver fibrosis in hepatitis C virus (HCV) patients in comparison with transient elastography (TE) and fibrosis scores [FIB-4 and aspartate aminotransferase-to-platelet ratio index (APRI)] using liver biopsy as a reference standard and also to predict the sensitivity and specificity of ElastPQ as well as proposing a cut-off for advanced fibrosis...
May 1, 2018: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29718546/improvement-of-lsm-arfi-measurements-and-non-invasive-fibrosis-markers-after-daas-for-hcv-g4-recurrence-post-living-donor-liver-transplantation-egyptian-cohort
#10
Shereen Abdel Alem, Mohamed Said, Ismail Anwar, Zeinab Abdellatif, Tamer Elbaz, Rasha Eletreby, Mahmoud AbouElKhair, Magdy El-Serafy, Sherif Mogawer, Mona El-Amir, Mostafa El-Shazly, Adel Hosny, Ayman Yosry
BACKGROUND: Progression of recurrent hepatitis C is accelerated in liver transplant (LT) recipients. Direct acting antivirals (DAAs) have recently emerged as a promising therapeutic regimen for the treatment of hepatitis C virus (HCV) infection. Rates of sustained virological response (SVR) have drastically improved since introduction of DAAs. AIM: To elucidate the changes in liver stiffness measurement (LSM) by Transient elastography (TE) as well as ARFI elastography and fibrosis scores after DAAs treatment in LT recipients with hepatitis C virus (HCV) recurrence...
May 2, 2018: Journal of Medical Virology
https://www.readbyqxmd.com/read/29709679/molecular-profiling-of-subclinical-inflammatory-lesions-in-long-term-surviving-adult-liver-transplant-recipients
#11
María-Carlota Londoño, Lara Neves Souza, Juan-José Lozano, Rosa Miquel, Juan G Abraldes, Laura-Patricia LLovet, Alberto Quaglia, Antoni Rimola, Miquel Navasa, Alberto Sánchez-Fueyo
BACKGROUND AND AIMS: Sub-clinical inflammatory changes are commonly described in long-term transplant recipients undergoing protocol liver biopsies. The pathogenesis of these lesions remains unclear. The aim of the study was to identify the key molecular pathways driving progressive sub-clinical inflammatory liver allograft damage. PATIENTS AND METHODS: All liver recipients followed at Hospital Clínic Barcelona who were >10 years post-transplant were screened to participate in the study...
April 27, 2018: Journal of Hepatology
https://www.readbyqxmd.com/read/29709450/the-combination-of-5-serum-markers-compared-to-fibroscan-to-predict-significant-liver-fibrosis-in-patients-with-chronic-hepatitis-b-virus
#12
Huimin Dong, Changzhi Xu, Wenying Zhou, Yuan Liao, Junyan Cao, Zhaoxia Li, Bo Hu
BACKGROUND: We evaluated the performance of serum hyaluronan (HA), procollagen type III N-terminal peptide (PIIINP), type IV collagen (IVC), laminin (LN), alanine aminotransferase (ALT), and aspartate aminotransferase (AST), compared to transient elastography (FibroScan) in predicting significant liver fibrosis. METHODS: We therefore determined 4 serum fibrosis markers, FibroScan and liver biopsy in 70 consecutive adult patients with chronic hepatitis B. According to a modified Scheuer scoring system, significant fibrosis was defined as fibrosis stage ≥S2...
April 28, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29706408/analysis-of-transient-shear-wave-in-lossy-media
#13
Kevin J Parker, Juvenal Ormachea, Scott Will, Zaegyoo Hah
The propagation of shear waves from impulsive forces is an important topic in elastography. Observations of shear wave propagation can be obtained with numerous clinical imaging systems. Parameter estimations of the shear wave speed in tissues, and more generally the viscoelastic parameters of tissues, are based on some underlying models of shear wave propagation. The models typically include specific choices of the spatial and temporal shape of the impulsive force and the elastic or viscoelastic properties of the medium...
April 26, 2018: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/29705261/vibration-controlled-transient-elastography-to-assess-fibrosis-and-steatosis-in-patients-with-nonalcoholic-fatty-liver-disease
#14
Mohammad S Siddiqui, Raj Vuppalanchi, Mark L Van Natta, Erin Hallinan, Kris V Kowdley, Manal Abdelmalek, Brent A Neuschwander-Tetri, Rohit Loomba, Srinivasan Dasarathy, Danielle Brandman, Edward Doo, James A Tonascia, David E Kleiner, Naga Chalasani, Arun J Sanyal
BACKGROUND & AIMS: Vibration-controlled transient elastography (VCTE), which measures liver stiffness, has become an important tool for evaluating patients with nonalcoholic fatty liver disease (NAFLD). We aimed to determine the diagnostic accuracy of VCTE in detection of NAFLD in a multicenter cohort of patients. METHODS: We performed a prospective study of 393 adults with NAFLD who underwent VCTE within 1 year of liver histology analysis (median time, 49 days; interquartile range, 25-78 days), from July 1, 2014 through July 31, 2017...
April 26, 2018: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29705030/adherence-to-quality-criteria-improves-concordance-between-transient-elastography-and-elastpq-for-liver-stiffness-assessment-a-multicenter-retrospective-study
#15
Giovanna Ferraioli, Annalisa De Silvestri, Thomas Reiberger, Simon D Taylor-Robinson, Robert J de Knegt, Laura Maiocchi, Ruxandra Mare, Theresa Bucsics, Sebastiana Atzori, Carmine Tinelli, Ioan Sporea
BACKGROUND: Assessment of liver stiffness provides important diagnostic and prognostic information in patients with chronic liver disease. AIMS: To investigate whether the use of quality criteria (i) improves the concordance between transient elastography (TE) and a novel point shear wave elastography technique (ElastPQ® ) and (ii) impacts on the performance of ElastPQ® for liver fibrosis staging using TE as the reference standard. METHODS: In this multicenter retrospective study, data of patients undergoing liver stiffness measurements (LSM) in five European centers were collected...
April 4, 2018: Digestive and Liver Disease
https://www.readbyqxmd.com/read/29696462/longitudinal-monitoring-of-liver-fibrosis-status-by-transient-elastography-in-chronic-hepatitis-b-patients-during-long-term-entecavir-treatment
#16
Sheng-Di Wu, Li-Li Liu, Ji-Lin Cheng, Yun Liu, Li-Sha Cheng, Si-Qi Wang, Wei Ma, Li-Ping Chen, Yu-Jen Tseng, Ji-Yao Wang, Xi-Zhong Shen, Wei Jiang
The correlation between improvement in longitudinal liver stiffness and fibrosis regression has not been properly evaluated during long-term antiviral therapy in chronic hepatitis B (CHB) patients. In this study, liver stiffness was serially performed by FibroScan® every 26 weeks in a prospective cohort of CHB patients receiving entecavir. Results were compared with liver biopsies at baseline and week 78. A total of 120 treatment-naïve CHB patients were analyzed, in which 54 (45%) patients had fibrosis regression at 78 weeks of antiviral therapy...
April 25, 2018: Clinical and Experimental Medicine
https://www.readbyqxmd.com/read/29685617/validation-of-transient-elastography-cut-points-to-assess-advanced-liver-fibrosis-in-children-and-young-adults-the-boston-children-s-hospital-experience
#17
Christine K Lee, Paul D Mitchell, Roshan Raza, Sarah Harney, Shanna M Wiggins, Maureen M Jonas
OBJECTIVE: To derive an optimal liver stiffness measurement cut point to discriminate METAVIR fibrosis stage F4 and to validate both METAVIR fibrosis stage F3-F4 and F4 cut points in a separate cohort. STUDY DESIGN: Patients at Boston Children's Hospital with liver stiffness measurement from 2006 to 2016 and liver biopsy ≤12 months before screening were eligible. Patients enrolled 2006-2011 were used to calibrate liver stiffness measurement cut points and those enrolled 2011-2016 for validation...
April 20, 2018: Journal of Pediatrics
https://www.readbyqxmd.com/read/29674183/pnpla3-rs738409-polymorphism-is-associated-with-liver-fibrosis-progression-in-patients-with-chronic-hepatitis-c-a-repeated-measures-study
#18
María Ángeles Jiménez-Sousa, Ana Zaida Gómez-Moreno, Daniel Pineda-Tenor, Juan José Sánchez-Ruano, Amanda Fernández-Rodríguez, Tomas Artaza-Varasa, Alicia Gómez-Sanz, María Martín-Vicente, Sonia Vázquez-Morón, Salvador Resino
BACKGROUND: Host genetic background has been associated with liver fibrosis progression. OBJECTIVE: To analyze the association between the patatin-like phospholipase domain-containing 3 (PNPLA3) rs738409 polymorphism and liver fibrosis progression in hepatitis C virus (HCV)-infected patients. STUDY DESIGN: In this retrospective cohort study, 187 patients with chronic HCV infection were included, who had at least two liver stiffness measurements (LSM) by transient elastography during the follow-up...
April 12, 2018: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/29669970/prognostic-relevance-of-liver-stiffness-assessed-by-transient-elastography-in-patients-with-acute-decompensated-heart-failure
#19
Yuki Saito, Mahoto Kato, Koichi Nagashima, Koyuru Monno, Yoshihiro Aizawa, Yasuo Okumura, Naoki Matsumoto, Mitsuhiko Moriyama, Atsushi Hirayama
BACKGROUND: Acute decompensated heart failure (ADHF) is often accompanied by liver congestion through increased right atrial pressure (RAP). Liver stiffness (LS) assessed non-invasively using transient elastography is related to increased RAP and liver congestion in patients with general HF. We investigated the relationship of LS with clinical and echocardiographic variables and outcomes in patients with ADHF.Methods and Results:The subjects were 105 patients with ADHF admitted to hospital between October 2016 and June 2017...
April 17, 2018: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29661435/transient-elastography-in-acute-cellular-rejection-following-liver-transplantation-systematic-review
#20
L S Nacif, C D C Gomes, M N Mischiatti, V Kim, D Paranaguá-Vezozzo, G L Reinoso, F J Carrilho, L C D'Albuquerque
BACKGROUND: Transient elastography (TE) is a noninvasive technique that measures liver stiffness. When an inflammatory process is present, this is shown by elevated levels of stiffness. Acute cellular rejection (ACR) is a consequence of an inflammatory response directed at endothelial and bile epithelial cells, and it is diagnosed through liver biopsy. This is a systematic review of the viability of TE in ACR following liver transplantation. METHODS: The Cochrane Library, Embase, and Medline PubMed databases were searched and updated to November 2016...
April 2018: Transplantation Proceedings
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