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Liver and elastography and measurement number

Elba Llop, Marta Lopez, Juan de la Revilla, Natalia Fernandez, Maria Trapero, Marta Hernandez, Carlos Fernandez, Fernando Pons, Jose Luis Martinez, Jose Luis Calleja
INTRODUCTION: The aim was to validate non-invasive methods to predict the presence of gastroesophageal varices (GEV) in patients with suspected compensated advanced chronic liver disease (cACLD). METHODS: We retrospectively reviewed clinical and radiological data collected prospectively between September 2013 and September 2015. We reviewed 442 consecutive patients with suspected cACLD measured by transient elastography (TE) and a gastroscopy. We evaluated platelets, spleen diameter, TE, LSPS (liver stiffness x spleen size /platelets), variceal risk index (VRI), Baveno VI strategy and Augustin algorithm...
March 11, 2017: Journal of Gastroenterology and Hepatology
Barbara Schellhaas, Deike Strobel, Dane Wildner, Ruediger S Goertz, Markus F Neurath, Lukas Pfeifer
OBJECTIVES: Two-dimensional shear-wave elastography (2D-SWE) is an ultrasound-based technique for the noninvasive assessment of tissue stiffness. In contrast to the well-established point-shear-wave elastography (pSWE) method acoustic radiation force impulse imaging, there is little evidence on the performance and usefulness of 2D-SWE in the assessment of liver stiffness. Thus, the aim of our study was to compare 2D-SWE versus pSWE. MATERIALS AND METHODS: 2D-SWE and pSWE were performed in 20 cirrhotic patients, 20 healthy individuals and an elasticity phantom...
January 21, 2017: European Journal of Gastroenterology & Hepatology
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
Andreas Ronit, Judith Haissman, Ditte Marie Kirkegaard-Klitbo, Thomas Skårup Kristensen, Anne-Mette Lebech, Thomas Benfield, Jan Gerstoft, Henrik Ullum, Lars Køber, Andreas Kjær, Klaus Kofoed, Jørgen Vestbo, Børge Nordestgaard, Jens Lundgren, Susanne Dam Nielsen
BACKGROUND: Modern combination antiretroviral therapy (cART) has improved survival for people living with HIV (PLWHIV). Non-AIDS comorbidities have replaced opportunistic infections as leading causes of mortality and morbidity, and are becoming a key health concern as this population continues to age. The aim of this study is to estimate the prevalence and incidence of non-AIDS comorbidity among PLWHIV in Denmark in the cART era and to determine risk factors contributing to the pathogenesis...
November 26, 2016: BMC Infectious Diseases
Nadège Corbin, Elodie Breton, Michel de Mathelin, Jonathan Vappou
OBJECTIVE: Magnetic resonance elastography (MRE) requires substantial data processing based on phase image reconstruction, wave enhancement, and inverse problem solving. The objective of this study is to propose a new, fast MRE method based on MR raw data processing, particularly adapted to applications requiring fast MRE measurement or high elastogram update rate. MATERIALS AND METHODS: The proposed method allows measuring tissue elasticity directly from raw data without prior phase image reconstruction and without phase unwrapping...
November 7, 2016: Magma
Kimitoshi Kubo, Hiroshi Kawakami, Masaki Kuwatani, Mutsumi Nishida, Kazumichi Kawakubo, Shuhei Kawahata, Yoko Taya, Yoshimasa Kubota, Toraji Amano, Hiroki Shirato, Naoya Sakamoto
BACKGROUND: Obstructive jaundice has been reported to influence liver elasticity, independent of liver fibrosis. The aim of our prospective study was to evaluate the changes in liver elasticity, before and after biliary drainage, in patients with obstructive jaundice, and to evaluate the correlation between elasticity measures and serum markers of liver fibrosis. METHODS: This is a prospective cohort study of 20 patients with obstructive jaundice. Liver elasticity was assessed by Transient Elastography (TE) and Virtual Touch™ Quantification (VTQ)...
July 8, 2016: BMC Gastroenterology
Ivana Mikolasevic, Sandra Milic, Lidija Orlic, Davor Stimac, Neven Franjic, Giovanni Targher
BACKGROUND/AIMS: We examined the relationship between controlled attenuation parameter (CAP) and liver stiffness measurements (LSM), as assessed by transient elastography (TE), and different clinical and biochemical parameters in patients with one or more components of the metabolic syndrome (MetS). The hypothesis of the study was that LSM and CAP values correlate with the number of MetS components. METHODS: In this cross-sectional study a total of 648 consecutive patients were recruited during the years 2013-2015...
September 2016: Journal of Diabetes and its Complications
Mariana M Gersak, Erich Sorantin, Jana Windhaber, Sorin M Dudea, Michael Riccabona
AIM: Food intake and acutely decompensated cardiac failure may impair liver stiffness estimations, mainly because these methods are influenced by liver blood flow variation encountered in these conditions. It is well known that also during physical effort liver blood flow changes, due to the redistribution of blood flow mainly to the skeletal muscles. The aim of this study is to assess the change of liver shear- wave velocities immediately after cessation of an acute physical effort. A secondary aim was to find the proper timing for accurate liver stiffness estimation after physical exhaustion...
June 2016: Medical Ultrasonography
Olivier Chazouillères
BACKGROUND: There is a great need for risk stratification in patients with chronic cholestatic diseases in order to allow for more personalized care and adapted management as well as for well-designed therapeutic trials. Novel tools for monitoring primary biliary cirrhosis (PBC) and primary sclerosing cholangitis (PSC) patients have been recently proposed. In addition, major insight has been gained into bile acid (BA) physiology during the last decade including the role of BAs as metabolic modulators and the gut-liver axis...
2016: Digestive Diseases
F Piscaglia, V Salvatore, L Mulazzani, V Cantisani, C Schiavone
In the last 12 - 18 months nearly all ultrasound manufacturers have arrived to implement ultrasound shear wave elastography modality in their equipment for the assessment of chronic liver disease; the few remaining players are expected to follow in 2016.When all manufacturers rush to a new technology at the same time, it is evident that the clinical demand for this information is of utmost value. Around 1990, there was similar demand for color Doppler ultrasound; high demand for contrast-enhanced ultrasonography was evident at the beginning of this century, and around 2010 demand increased for strain elastography...
February 2016: Ultraschall in der Medizin
Cristina Stasi, Stefano Milani
The assessment of the fibrotic evolution of chronic hepatitis has always been a challenge for the clinical hepatologist. Over the past decade, various non-invasive methods have been proposed to detect the presence of fibrosis, including the elastometric measure of stiffness, panels of clinical and biochemical parameters, and combinations of both methods. The aim of this review is to analyse the most recent data on non-invasive techniques for the evaluation of hepatic fibrosis with particular attention to cost-effectiveness...
January 28, 2016: World Journal of Gastroenterology: WJG
Fernando de Barros, Sérgio Setúbal, José Manoel Martinho, Nathalie Carvalho Leite, Thais Guaraná, Ana Beatriz Soares Monteiro, Cristiane A Villela-Nogueira
BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) is a common, severe disease in obese patients. However, NAFLD is usually underestimated by ultrasonography. Liver biopsy is not routinely done in bariatric surgery or during the follow-up. This study therefore examined the correlation between metabolic syndrome and NAFLD in morbidly obese patients based on an assessment using transient hepatic elastography (THE). MATERIAL AND METHODS: This study involved 50 female patients in the pre-operative phase for bariatric surgery...
September 2016: Obesity Surgery
Young Dae Kim, Dongbeom Song, Ji Hoe Heo, Seung Up Kim, Beom Kyung Kim, Jun Yong Park, Do Young Kim, Sang Hoon Ahn, Kwang Joon Kim, Kwang-Hyub Han
BACKGROUND & AIMS: Liver fibrosis is a multifactorial disease that can affect the development of cerebral small vessel diseases (SVDs) including cerebral microbleeds (CMBs), leukoaraiosis, and silent infarctions. Transient elastography can accurately assess the degree of liver fibrosis by measuring liver stiffness (LS). In the present study, we investigated the association between SVDs and LS values. METHODS: We recruited 300 participants (mean age 56 years, 170 men) who underwent a comprehensive medical health check-up between January 2011 and December 2012...
2015: PloS One
Suk Keu Yeom, Chang Hee Lee, Sang Hoon Cha, Cheol Min Park
Early diagnosis of liver cirrhosis is important. Ultrasound-guided liver biopsy is the gold standard for diagnosis of liver cirrhosis. However, its invasiveness and sampling bias limit the applicability of the method. Basic imaging for the diagnosis of liver cirrhosis has developed over the last few decades, enabling early detection of morphological changes of the liver by ultrasonography (US), computed tomography, and magnetic resonance imaging (MRI). They are also accurate diagnostic methods for advanced liver cirrhosis, for which early diagnosis is difficult...
August 18, 2015: World Journal of Hepatology
Nik S Ding, Tin Nguyen, David M Iser, Thai Hong, Emma Flanagan, Avelyn Wong, Lauren Luiz, Jonathan Y C Tan, James Fulforth, Jacinta Holmes, Marno Ryan, Sally J Bell, Paul V Desmond, Stuart K Roberts, John Lubel, William Kemp, Alexander J Thompson
BACKGROUND/AIMS: Endoscopic screening for high-risk gastro-oesophageal varices (GOV) is recommended for compensated cirrhotic patients with transient elastography identifying increasing numbers of patients with cirrhosis without portal hypertension. Using liver stiffness measurement (LSM) ± platelet count, the aim was to develop a simple clinical rule to exclude the presence of high-risk GOV in patients with Child-Pugh A cirrhosis. METHODS: A retrospective analysis of 71 patients with Child-Pugh A cirrhosis diagnosed by transient elastography (LSM >13...
February 2016: Liver International: Official Journal of the International Association for the Study of the Liver
Duncan B Richards, Louise M Cookson, Alienor C Berges, Sharon V Barton, Thirusha Lane, James M Ritter, Marianna Fontana, James C Moon, Massimo Pinzani, Julian D Gillmore, Philip N Hawkins, Mark B Pepys
BACKGROUND: The amyloid fibril deposits that cause systemic amyloidosis always contain the nonfibrillar normal plasma protein, serum amyloid P component (SAP). The drug (R)-1-[6-[(R)-2-carboxy-pyrrolidin-1-yl]-6-oxo-hexanoyl]pyrrolidine-2-carboxylic acid (CPHPC) efficiently depletes SAP from the plasma but leaves some SAP in amyloid deposits that can be specifically targeted by therapeutic IgG anti-SAP antibodies. In murine amyloid A type amyloidosis, the binding of these antibodies to the residual SAP in amyloid deposits activates complement and triggers the rapid clearance of amyloid by macrophage-derived multinucleated giant cells...
September 17, 2015: New England Journal of Medicine
Laurent Castera
BACKGROUND: The prognosis and management of chronic liver diseases greatly depend on the amount and progression of liver fibrosis with the risk of developing cirrhosis. Liver biopsy, traditionally considered as the reference standard for the staging of fibrosis, has been challenged over the past decade by the development of novel noninvasive methodologies. Key Messages: Noninvasive methods rely on two different but complementary approaches: a 'biological' approach based on the dosage serum biomarkers, and a 'physical' approach based on the measurement of liver stiffness using transient elastography (TE)...
2015: Digestive Diseases
David J Harman, Stephen D Ryder, Martin W James, Matthew Jelpke, Dominic S Ottey, Emilie A Wilkes, Timothy R Card, Guruprasad P Aithal, Indra Neil Guha
OBJECTIVES: To assess the feasibility of a novel diagnostic algorithm targeting patients with risk factors for chronic liver disease in a community setting. DESIGN: Prospective cross-sectional study. SETTING: Two primary care practices (adult patient population 10,479) in Nottingham, UK. PARTICIPANTS: Adult patients (aged 18 years or over) fulfilling one or more selected risk factors for developing chronic liver disease: (1) hazardous alcohol use, (2) type 2 diabetes or (3) persistently elevated alanine aminotransferase (ALT) liver function enzyme with negative serology...
May 3, 2015: BMJ Open
Cory J Ozimok, Ania Z Kielar, Wael M Shabana
RATIONALE AND OBJECTIVES: To review sustainability and fair access related to setting up a centralized transient elastography (TE) program in the radiology department and to perform a quality assessment of a novel liver fibrosis evaluation program that combines TE with limited abdominal ultrasound (US). MATERIAL AND METHODS: As part of a quality assessment, a retrospective chart review was performed on 758 patients who underwent TE immediately after limited abdominal US of the liver over a 12-month period...
July 2015: Academic Radiology
Sang Hoon Lee, Seung Up Kim, Jeong Won Jang, Si Hyun Bae, Sanghun Lee, Beom Kyung Kim, Jun Yong Park, Do Young Kim, Sang Hoon Ahn, Kwang-Hyub Han
BACKGROUND/PURPOSE: Liver stiffness (LS) measurement using transient elastography can accurately assess the degree of liver fibrosis, which is associated with the risk of the development of hepatocellular carcinoma (HCC). We investigated whether LS values could predict HCC de novo recurrence after radiofrequency ablation (RFA). METHODS: This retrospective, multicenter study analyzed 111 patients with HCC who underwent RFA and LS measurement using transient elastography between May 2005 and April 2011...
2015: OncoTargets and Therapy
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