Verasonics sues SuperSonic Imagine

Research ultrasound technology developer Verasonics has filed a patent infringement...Read more on AuntMinnie.comRelated Reading: SuperSonic to feature Aixplorer Ultimate at ECR FDA clears SuperSonic's Aixplorer for liver disease Verasonics buries hatchet with Alpinion U.S. court confirms Verasonics arbitration award Verasonics claims arbitration win against Alpinion
Source: Headlines - Category: Radiology Source Type: news

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AbstractPurpose of ReviewThe dramatic increase in nonalcoholic fatty liver disease (NAFLD) and nonalcoholic steatohepatitis (NASH) fostered the development and evaluation of non-invasive, imaging based methods for diagnosing NAFLD, NASH, and its complications. We herein review different radiologic modalities in diagnosing steatosis, fibrosis, and liver cirrhosis.Recent FindingsWhile routine abdominal ultrasound with hyperechogenic liver structure only detects moderate to severe steatosis, controlled attenuation parameter (CAP), magnetic resonance spectroscopy (MRS), and, especially, MRI-proton density fat fraction (MRI-PDF...
Source: Current Hepatitis Reports - Category: Infectious Diseases Source Type: research
Non-alcoholic fatty liver disease is a condition that is characterized by the presence of>5% fat in the liver and affects more than one billion people worldwide. If adequate and early precautions are not taken, non-alcoholic fatty liver disease can progress to cirrhosis and death. The current reference standard for detecting hepatic steatosis is a liver biopsy. However, because of the potential morbidity associated with liver biopsies, non-invasive imaging biomarkers have been extensively investigated.
Source: Ultrasound in Medicine and Biology - Category: Radiology Authors: Tags: Review Article Source Type: research
Authors: Mustapic S, Ziga S, Matic V, Bokun T, Radic B, Lucijanic M, Marusic S, Babic Z, Grgurevic I Abstract The aim of the study was to explore (a) prevalence and grade of nonalcoholic fatty liver (NAFL) among outpatients referred for abdominal ultrasound (US) examination and (b) relationship between the presence and severity of liver steatosis and metabolic syndrome (MS). This was a retrospective analysis of patients without history of liver disease examined by abdominal US in the University hospital setting. US was used to detect and semiquantitatively grade (0-3) liver steatosis. Data on patients' age, gender,...
Source: Canadian Journal of Gastroenterology - Category: Gastroenterology Tags: Can J Gastroenterol Hepatol Source Type: research
Non-invasive assessment of liver disease remains a major challenge. Ultrasound derived biomechanical measurements (FibroScan ® and shear wave elastography) are widely used because of their relatively low cost and proximity to the bedside, but sample only small areas of the liver, and thus suffer the same sampling limitations as liver biopsy. MR based methods are inherently more comprehensive, sampling the whole organ, wi th the potential to assess tissue composition using T1 mapping,1 alongside accurate quantification of liver fat (proton-density fat fraction mapping)2 and liver iron (T2∗ mapping).
Source: Journal of Hepatology - Category: Gastroenterology Authors: Tags: Editorial Source Type: research
The aim of this study was to assess whether the number of liver point shear wave elastography (pSWE) measurements could be reduced compared with the currently recommended 10 valid measurements. Three thousand four hundred one pSWE examinations in patients with liver disease were performed with 10 consecutive valid measurements in liver segment 8. Liver fibrosis grading using published cutoff values were compared retrospectively using the median of 10 versus the first 1 –9 measurements with Kendall's τ coefficient.
Source: Ultrasound in Medicine and Biology - Category: Radiology Authors: Tags: Original Contribution Source Type: research
Authors: Scarioti VD, Oliveira LT, Mattiello AC, Gomes NDS Abstract A 16-year-old female patient previously diagnosed with autosomal recessive polycystic kidney disease (ARPKD) presented with acute bilateral pneumonia, upper gastrointestinal bleeding caused by ruptured esophageal varices, ascites, and lower limb edema. She required intensive care and an endoscopic procedure to treat the gastrointestinal bleeding. The analysis of the differential diagnosis for chronic liver disease indicated she had a spontaneous splenorenal shunt. Ultrasound-guided biopsy revealed the patient had cirrhosis, as characteristically se...
Source: Jornal Brasileiro de Nefrologia - Category: Urology & Nephrology Tags: J Bras Nefrol Source Type: research
The World Federation for Ultrasound in Medicine and Biology has produced these guidelines for the use of elastography techniques in liver diseases. For each available technique, the reproducibility, results and limitations are analyzed, and recommendations are given. This set of guidelines updates the first version, published in 2015. Since the prior guidelines, there have been several advances in technology. The recommendations are based on the international published literature, and the strength of each recommendation is judged according to the Oxford Centre for Evidence-Based Medicine.
Source: Ultrasound in Medicine and Biology - Category: Radiology Authors: Tags: Review Source Type: research
Authors: Li Q, Dhyani M, Grajo JR, Sirlin C, Samir AE Abstract Non-alcoholic fatty liver disease (NAFLD) is the most common diffuse liver disease, with a worldwide prevalence of 20% to 46%. NAFLD can be subdivided into simple steatosis and nonalcoholic steatohepatitis. Most cases of simple steatosis are non-progressive, whereas nonalcoholic steatohepatitis may result in chronic liver injury and progressive fibrosis in a significant minority. Effective risk stratification and management of NAFLD requires evaluation of hepatic parenchymal fat, fibrosis, and inflammation. Liver biopsy remains the current gold standard...
Source: World Journal of Hepatology - Category: Gastroenterology Tags: World J Hepatol Source Type: research
Nonalcoholic fatty liver disease (NAFLD) is now the most prevalent liver disease in the world. It involves a spectrum of conditions from hepatic steatosis to nonalcoholic steatohepatitis and liver fibrosis, and is a major cause of cirrhosis and hepatocellular carcinoma. It is defined by presence of steatosis in 5% of hepatocytes or more in the absence of other causes of fatty liver. The metabolic syndrome is the major known risk factor for NAFLD. Dietary contributors such as high fructose intake and coffee consumption appear to increase and decrease the risk of disease respectively, but these links are unclear. Genetic ass...
Source: European Journal of Gastroenterology and Hepatology - Category: Gastroenterology Tags: Review Articles Source Type: research
We present here a rare case of HCC metastasis found in the right gluteal region, in a hepatitis C virus-infected patient also displaying lung tumor lesions. Diagnosis of both the metastasis and of the primary tumor were found during the same hospital visit, employing contrast-enhanced computed tomography, magnetic resonance imaging and ultrasound (US), with positive biopsy of the metastatic lesion, performed under US guidance. The patient received oncological treatment, with good prognosis and stable evolution during the next eight months since diagnosis. PMID: 30173261 [PubMed - in process]
Source: Romanian Journal of Morphology and Embryology - Category: General Medicine Tags: Rom J Morphol Embryol Source Type: research
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