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Elastography

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https://www.readbyqxmd.com/read/29150327/diagnostic-accuracy-of-point-shear-wave-elastography-in-the-detection-of-portal-hypertension-in-pediatric-patients
#1
M Burak Özkan, M C Bilgici, E Eren, G Caltepe
PURPOSE: The purpose of this study was to determine the usefulness of point shear wave elastography (p-SWE) of the liver and spleen for the detection of portal hypertension in pediatric patients. MATERIALS AND METHODS: The study consisted of 38 healthy children and 56 pediatric patients with biopsy-proven liver disease who underwent splenic and liver p-SWE. The diagnostic performance of p-SWE in detecting clinically significant portal hypertension was assessed using receiver operating characteristic (ROC) curves...
November 14, 2017: Diagnostic and Interventional Imaging
https://www.readbyqxmd.com/read/29147849/heterogeneity-of-passive-elastic-properties-within-the-quadriceps-femoris-muscle-tendon-unit
#2
Brooke K Coombes, Brandon Ziegenfuss, Michael David, Rohitha Badya, Wolbert van den Hoorn, François Hug, Kylie Tucker
PURPOSE: The purpose of this study was to compare regional elastic properties between anterior and posterior regions of the patellar tendon, and individual quadriceps muscles, over a range of knee flexion angles. METHODS: An isokinetic dynamometer passively positioned the non-dominant knee of 19 young, healthy participants, at 25°, 40°, 55°, 70° and 85° flexion. Shear wave velocity (SWV, an index of tissue elasticity) was measured using ultrasound shear wave elastography in a relaxed (passive) state, confirmed by electromyography...
November 17, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29147741/achilles-tendon-elastic-properties-remain-decreased-in-long-term-after-rupture
#3
B Frankewycz, A Penz, J Weber, N P da Silva, F Freimoser, R Bell, M Nerlich, E M Jung, D Docheva, C G Pfeifer
PURPOSE: Rupture of the Achilles tendon results in inferior scar tissue formation. Elastography allows a feasible in vivo investigation of biomechanical properties of the Achilles tendon. The purpose of this study is to investigate the biomechanical properties of healed Achilles tendons in the long term. MATERIALS AND METHODS: Patients who suffered from Achilles tendon rupture were recruited for an elastographic evaluation. Unilateral Achilles tendon ruptures were included and scanned in the mid-substance and calcaneal insertion at least 2 years after rupture using shear wave elastography...
November 16, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29147077/application-of-breast-ultrasound-elastography-to-differentiate-intracapsular-collection-from-silicone-induced-granuloma-of-breast-implant-capsule-complementarily-to-contrast-enhanced-breast-magnetic-resonance-imaging
#4
Eduardo de Faria Castro Fleury, Ana Claudia Gianini, Veronica Ayres, Luciana C Ramalho, Decio Roveda, Vilmar Marques de Oliveira
Background: To determine whether there is correlation between magnetic resonance imaging (MRI) findings and breast elastography to differentiate seroma/hematoma from silicone-induced granuloma of breast implant capsule (SIGBIC). Methods: Prospective study of 99 patients with breast implants submitted to breast MRI during the period from February 1 to May 1, 2017. Patients who present MRI findings of seroma/hematoma or SIGBIC were submitted to a complementary ultrasound elastography study to evaluate the correlation of the results...
2017: Breast Cancer: Basic and Clinical Research
https://www.readbyqxmd.com/read/29144159/shear-wave-elastography-quantitative-assessment-of-the-male-breast-added-value-to-distinguish-benign-and-malignant-palpable-masses
#5
Amandine Crombe, Gabrielle Hurtevent-Labrot, Maryam Asad-Syed, Jean Palussiere, Gaetan MacGrogan, Michèle Kind, Stéphane Ferron
OBJECTIVE: To evaluate the ability of shear-wave elastography (SWE) to distinguish between benign and malignant palpable masses of the adult male breast. METHODS: Clinical examination, mammography, B-mode and Doppler ultrasound (US) findings and SWE quantitative parameters were compared in 50 benign lesions (including 40 gynecomastias) and 15 malignant lesions (invasive ductal carcinomas) from 65 patients who were consecutively addressed for specialized advice at our comprehensive cancer center...
November 16, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29143363/utility-of-shear-wave-elastography-for-assessing-allograft-fibrosis-in-renal-transplant-recipients-a-pilot-study
#6
Heather M Early, Ellen C Cheang, Jorge M Aguilera, Jonah S W Hirschbein, Ghaneh Fananapazir, Machelle D Wilson, John P McGahan
OBJECTIVES: To evaluate the utility of ultrasound-based shear wave elastography (SWE) as a noninvasive method to accurately detect and potentially stage the severity of renal allograft fibrosis and assess its user reproducibility. METHODS: In this Institutional Review Board-approved, Health Insurance Portability and Accountability Act-compliant prospective study, 70 renal transplant recipients underwent an SWE evaluation of their allograft followed directly by biopsy...
November 16, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29143076/magnetic-resonance-elastography-beyond-liver-fibrosis-a-case-based-pictorial-review
#7
REVIEW
Sudhakar K Venkatesh, Michael L Wells, Frank H Miller, Kartik S Jhaveri, Alvin C Silva, Bachir Taouli, Richard L Ehman
Magnetic resonance elastography (MRE) has been introduced for clinical evaluation of liver fibrosis for nearly a decade. MRE has proven to be a robust and accurate technique for diagnosis and staging of liver fibrosis. As clinical experience with MRE grows, the possible role in evaluation of other diffuse and focal disorders of liver is emerging. Stiffness maps provide an opportunity to evaluate mechanical properties within a large volume of liver tissue. This enables appreciation of spatial heterogeneity of stiffness...
November 15, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29139316/association-of-gastrocnemius-muscle-stiffness-with-passive-ankle-joint-stiffness-and-sex-related-difference-in-the-joint-stiffness
#8
Kintaro Chino, Hideyuki Takashi
Passive ankle joint stiffness is affected by all structures located within and over the joint, and is greater in men than in women. Localized muscle stiffness can be assessed by ultrasound shear wave elastography, and muscle architecture such as fascicle length and pennation angle can be measured by B-mode ultrasonography. Thus, we assessed localized muscle stiffness of the medial gastrocnemius (MG) with consideration of individual variability in the muscle architecture, and examined the association of the muscle stiffness with passive ankle joint stiffness and the sex-related difference in the joint stiffness...
November 15, 2017: Journal of Applied Biomechanics
https://www.readbyqxmd.com/read/29137729/the-shear-wave-elastic-modulus-and-the-increased-nuclear-factor-kappa-b-nf-kb-p65-and-cyclooxygenase-2-cox-2-expression-in-the-area-of-myofascial-trigger-points-activated-in-a-rat-model-by-blunt-trauma-to-the-vastus-medialis
#9
Hengyong Lv, Zhen Li, Tiantian Hu, Yuexiang Wang, Jinpeng Wu, Yingxin Li
We aimed to elucidate the increased inflammatory cytokines expression such as nuclear factor kappa B (NF-kB/p65), cyclooxygenase-2 (COX-2), and voltage-gated calcium channels (VGCC) in the area of activated myofascial trigger points (MTrPs) in a rat model by blunt trauma to the vastus medialis and to evaluate the feasibility of a quantitative analysis of muscle elastic modulus using shear wave elastography (SWE). Twelve 7-week-old male SD rats were divided into normal (NM, n = 6) and model groups (MO, n = 6)...
November 6, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29128938/liver-fibrosis-noninvasive-assessment-using-supersonic-shear-imaging-and-fib4-index-in-patients-with-non-alcoholic-fatty-liver-disease
#10
Hirohito Takeuchi, Katsutoshi Sugimoto, Hisashi Oshiro, Kunio Iwatsuka, Shin Kono, Yu Yoshimasu, Yoshitaka Kasai, Yoshihiro Furuichi, Kentaro Sakamaki, Takao Itoi
PURPOSE: Shear wave elastography (SWE) has been validated in chronic hepatitis C and B; however, limited data are available in non-alcoholic fatty liver disease (NAFLD). This study aimed to evaluate the accuracy of SWE and FIB4 index for the diagnosis of fibrosis in a cohort of consecutive patients with biopsy-proven NAFLD, and to evaluate the effects of other histologic parameters on SWE measurement. METHODS: Written informed consent was obtained from all patients, and this study was approved by our internal review board and ethics committee...
November 11, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29128063/radiologic-imaging-in-nonalcoholic-fatty-liver-disease-and-nonalcoholic-steatohepatitis
#11
REVIEW
Yonah B Esterson, Gregory M Grimaldi
The article reviews the multimodality (ultrasound, computed tomography, and magnetic resonance [MR]) imaging appearance of nonalcoholic fatty liver disease (NAFLD) and discusses the radiologic diagnostic criteria as well as the sensitivity and specificity of these imaging methods. The authors review the role of both ultrasound and MR elastography for the diagnosis of fibrosis and for the longitudinal evaluation of patients following therapeutic intervention. Lastly, the authors briefly discuss the screening and diagnosis of hepatocellular carcinoma in patients with NAFLD, as there are special considerations in this population...
February 2018: Clinics in Liver Disease
https://www.readbyqxmd.com/read/29128062/diagnosis-and-evaluation-of-nonalcoholic-fatty-liver-disease-nonalcoholic-steatohepatitis-including-noninvasive-biomarkers-and-transient-elastography
#12
REVIEW
Eugenia Tsai, Tai-Ping Lee
The incidence and prevalence of nonalcoholic fatty liver disease (NAFLD) are increasing and identification of people at risk of disease progression is extremely important. The current gold standard for diagnosing NAFLD/nonalcoholic steatohepatitis (NASH) is by liver biopsy, but it has several limitations. Noninvasive tests via biomarkers and transient elastography to assess NAFLD/NASH are being used in clinical practice. The most validated diagnostic panels include the NAFLD fibrosis score, FIB-4 (Fibrosis-4), and FibroMeter...
February 2018: Clinics in Liver Disease
https://www.readbyqxmd.com/read/29128050/the-use-of-liver-biopsy-in-nonalcoholic-fatty-liver-disease-when-to-biopsy-and-in-whom
#13
REVIEW
Nadege T Gunn, Mitchell L Shiffman
Nonalcoholic fatty liver disease (NAFLD) is a common liver disorder that can be divided into benign steatosis or nonalcoholic fatty liver (NAFL) and nonalcoholic steatohepatitis (NASH). Elastography and scoring systems based on clinical features and routine biochemical testing can be used to assess fibrosis in patients with NAFLD. Patients with fibrosis are thought to have NASH. However, only a liver biopsy can reliably diagnose NAFLD and differentiate NAFL from NASH. Because medical therapy for NASH is not available, it is not necessary to perform a liver biopsy in all patients...
February 2018: Clinics in Liver Disease
https://www.readbyqxmd.com/read/29126863/utility-of-transient-elastography-fibroscan-and-impact-of-bariatric-surgery-on-nonalcoholic-fatty-liver-disease-nafld-in-morbidly-obese-patients
#14
Harshit Garg, Sandeep Aggarwal, Shalimar, Rajni Yadav, Siddhartha Datta Gupta, Lokesh Agarwal, Samagra Agarwal
BACKGROUND: Controlled attenuation parameter (CAP) is a novel, noninvasive technique for assessing hepatic steatosis. However, its role in morbidly obese individuals is unclear. The effect of bariatric surgery on inflammation and fibrosis needs to be explored. OBJECTIVES: To assess the utility of CAP for assessment of hepatic steatosis in morbidly obese individuals and evaluate the effect of bariatric surgery on hepatic steatosis and fibrosis. SETTING: A tertiary care academic hospital...
September 11, 2017: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
https://www.readbyqxmd.com/read/29124123/endoscopic-ultrasound-in-diagnosis-of-solid-pancreatic-lesions-elastography-or-contrast-enhanced-harmonic-alone-versus-the-combination
#15
Tanyaporn Chantarojanasiri, Yoshiki Hirooka, Hiroki Kawashima, Eizaburo Ohno, Takamichi Kuwahara, Takeshi Yamamura, Kohei Funasaka, Masanao Nakamura, Ryoji Miyahara, Masatoshi Ishigami, Osamu Watanabe, Senju Hashimoto, Akihiro Hirakawa, Thawee Ratanachu-Ek, Hidemi Goto
Background and study aims : Endoscopic ultrasound (EUS) elastography (EUS-E) and contrast-enhanced harmonic EUS (CH-EUS) are useful methods for the diagnosis of pancreatic lesions. This study aims to compare the accuracy of combined EUS-E and CH-EUS with that of EUS-E or CH-EUS alone in the differential diagnosis of pancreatic solid lesions. Patients and methods:  One hundred thirty-six patients with solid pancreatic lesions underwent EUS with both EUS-E and CH-EUS were included...
November 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/29123424/liver-related-morbidity-and-mortality-in-patients-with-chronic-hepatitis-c-and-cirrhosis-with-and-without-sustained-virologic-response
#16
Sofie Hallager, Steen Ladelund, Peer Brehm Christensen, Mette Kjær, Birgit Thorup Roege, Karin Elmegaard Grønbæk, Erika Belard, Toke S Barfod, Lone Galmstrup Madsen, Jan Gerstoft, Britta Tarp, Henrik Bygum Krarup, Nina Weis
Background: Chronic hepatitis C (CHC) causes liver cirrhosis in 5%-20% of patients, leading to increased morbidity and mortality. This study aimed to estimate liver-related morbidity and mortality among patients with CHC and cirrhosis in Denmark with and without antiviral treatment and sustained virologic response (SVR). Furthermore we aimed to estimate the rate of hepatocellular carcinoma (HCC) and decompensation associated with certain prognostic factors. Materials and methods: Patients with CHC and cirrhosis registered in the Danish Database for Hepatitis B and C were eligible...
2017: Clinical Epidemiology
https://www.readbyqxmd.com/read/29123368/atherosclerosis-is-associated-with-a-higher-risk-of-hepatic-steatosis-in-hiv-infected-patients
#17
REVIEW
A Zizza, M Guido, M R Tumolo, A De Donno, F Bagordo, P Grima
Introduction: Cardiovascular Diseases (CD) have emerged as a leading cause of morbidity and mortality in HIV population. Some studies have reported higher carotid Intima Media Thickness (c-IMT), a measure of subclinical atherosclerosis (AT), in this cohort of patients. Methods: Here, we evaluate the role of Hepatic Steatosis (HS) as likely marker for AT in 128 HIV-infected patients without hepatitis C infection. c-IMT has been detected non-invasively by carotid ultrasonography to assess the progression of AT...
September 2017: Journal of Preventive Medicine and Hygiene
https://www.readbyqxmd.com/read/29122316/diagnostic-accuracy-of-2-d-shear-wave-elastography-for-the-non-invasive-staging-of-liver-fibrosis-in-patients-with-elevated-alanine-aminotransferase-levels
#18
Jie Zeng, Zeping Huang, Jieyang Jin, Jian Zheng, Tao Wu, Rongqin Zheng
This study assessed the diagnostic accuracy of 2-D shear wave elastography (2-D-SWE) for the non-invasive staging of liver fibrosis and compared the findings with those for biochemical markers (the aspartate aminotransferase-to-platelet index and fibrosis-4 index) of liver fibrosis in patients with elevated alanine aminotransferase (ALT) levels (>5 × the upper limit of normal). Patients with chronic liver diseases and elevated ALT levels who underwent liver biopsy were consecutively included. Receiver operating characteristic (ROC) curves were constructed to assess overall accuracy and to identify optimal cutoff values...
November 6, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/29121718/non-invasive-assessment-of-liver-changes-in-eisenmenger-patients
#19
Siegrun Mebus, Nicole Nagdyman, Johanna Kügel, Reinhart Zachoval, Siegmund Lorenz Braun, Guido Haverkämper, Bernd Opgen-Rhein, Felix Berger, Sophia Horster, Jörg Schoetzau, Claudia Pujol Salvador, Ulrike Bauer, John Hess, Peter Ewert, Harald Kaemmerer
BACKGROUND: Eisenmenger syndrome as a severe form of cyanotic congenital heart disease results in a complex multisystemic disorder. Due to increased systemic venous pressure and the inability to ensure systemic perfusion and metabolic requirements, the liver may develop congestion, fibrosis or cirrhosis. This study aimed to assess hepatic abnormalities in Eisenmenger patients non-invasively. METHODS AND RESULTS: 10 adults with Eisenmenger syndrome (six female; median age 44...
December 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29119725/systematic-review-and-meta-analysis-non-invasive-detection-of-non-alcoholic-fatty-liver-disease-related-fibrosis-in-the-obese
#20
REVIEW
G J Ooi, S Mgaieth, G D Eslick, P R Burton, W W Kemp, S K Roberts, W A Brown
BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) is a significant disease burden in obesity. Liver fibrosis is an important prognostic factor in NAFLD, and detection is vital. The pathophysiological changes of obesity can alter the accuracy of non-invasive NAFLD tests. We aimed to review current evidence for common non-invasive tests for NAFLD-related fibrosis in obesity. METHODS: We systematically searched for studies assessing the diagnostic accuracy of 11 biomarker panels and elastography techniques for NAFLD-related fibrosis in obesity...
November 9, 2017: Obesity Reviews: An Official Journal of the International Association for the Study of Obesity
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