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Liver ultrasound

Hongyun Zhao, Meng Wu, Leilei Zhu, Yi Tian, Mingxing Wu, Yizhen Li, Liming Deng, Wei Jiang, Wei Shen, Zhigang Wang, Zhechuan Mei, Pan Li, Haitao Ran, Zhiyi Zhou, Jianli Ren
Objective: Prepare a multifunctional ultrasound molecular probe, hyaluronic acid-mediated cell-penetrating peptide-modified 10-hydroxycamptothecin-loaded phase-transformation lipid nanoparticles (HA/CPPs-10-HCPT-NPs), and to combine HA/CPPs-10-HCPT-NPs with low-intensity focused ultrasound (LIFU) for precision theranostics against hepatocellular carcinoma (HCC). Methods: HA/CPPs-10-HCPT-NPs were prepared using thin-film dispersion, ultrasound emulsification, and electrostatic effects. HA/CPPs-10-HCPT-NPs were characterized for particle size, zeta potential, encapsulation efficiency and drug-loading efficiency...
2018: Theranostics
Shih-Wei Lai, Cheng-Li Lin, Kuan-Fu Liao
OBJECTIVE: Little evidence is available on the relationship between oral corticosteroids use and hepatocellular carcinoma. The objective of this study was to investigate whether oral corticosteroids use correlates with the risk of hepatocellular carcinoma in high risk populations in Taiwan. METHODS: Using representative claims database established from the Taiwan National Health Insurance Program with a population coverage rate of 99.6%, we identified 102,182 subjects aged 20-84 years with newly diagnosed hepatocellular carcinoma in 2000-2011 as the cases and 102,182 randomly selected subjects aged 20-84 years without hepatocellular carcinoma as the matched controls...
March 16, 2018: European Journal of Internal Medicine
Reza Abazari, Ali Reza Mahjoub, Soheila Molaie, Fatemeh Ghaffarifar, Ezatollah Ghasemi, Alexandra M Z Slawin, Cameron L Carpenter-Warren
In this work, a magnetic bio-metal-organic framework (MBMOF) nanocomposite with porous-layer open morphology is synthesized through a simple sonochemical approach and its effects on Leishmania major (MRHO/IR/75/ER) under both in vitro and in vivo conditions are investigated. The effects of sonication time, initial concentration of reagents and sonication power on size and morphology of MBMOF nanocomposites have been investigated and optimized. A comparison was then made between the structural information of the nanostructures and that of the bio-metal-organic framework crystals...
May 2018: Ultrasonics Sonochemistry
Ting-Ying Lee, Chia-Wen Wang, Teng-Wei Chen, De-Chuan Chan, Guo-Shiou Liao, Hsiu-Lung Fan
BACKGROUND: Gallbladder cancer is unusually seen but can result in highly mortality rate. It makes challenge to diagnose for clinicians due to present asymptomatic or non-specific clinical presentation including abdominal pain, anorexia. It usually also accompanies with cholelithiasis (incidence is 1-2%) and incidentally detected by radiologic examination such as ultrasound, computed tomography or intra-operative intervention accidentally. Gallbladder cancer results in highly fatal malignancy because it is difficult to early detect...
March 20, 2018: BMC Research Notes
Gülşah İlhan, Hüseyin Gültekin, Ayça Kubat, Ayse Filiz Gokmen Karasu, Emre Sinan Güngör, Galip Ali Zebitay, Fatma Ferda Verit Atmaca
The aim of the study was to assess the standard foetal biometric measurements and foetal liver volume (FLV) in pregnancies complicated by gestational diabetes mellitus (GDM) at the time of GDM screening and to compare the results with foetuses in normal pregnancies. Ninety-seven pregnant women with normal singleton uncomplicated pregnancies between 24 and 28 weeks of gestation were allocated into GDM (+) (n: 33) and GDM (-) (n: 64) groups based on their 75 g oral glucose tolerance test results. Foetal biometric measurements and FLV measurements of the groups were compared...
March 19, 2018: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
Patrícia Leitão, André Carvalho, Conceição Guerra, José Gonçalves, Isabel Ramos
Hereditary hemorrhagic telangiectasia or Osler-Weber-Rendu syndrome is a rare autosomal dominant vascular disorder characterized by epistaxis, mucocutaneous telangiectasias, and arteriovenous malformations affecting various organs and systems. The liver is a commonly involved organ (74% of patients with hereditary hemorrhagic telangiectasia), although symptomatic liver disease is quite infrequent. In symptomatic cases, clinical manifestations relate most commonly to the predominant type of vascular shunting present (arteriovenous, arterioportal, or portovenous)...
February 2018: Radiology Case Reports
Xiaoniu Tang, Wei Hu, Yechao Lv, Wenqi Zhang, Tian Sun, Yuxin Jiang, Xiaodong Zhan, Shulin Zhou
BACKGROUND Polysaccharides from bivalves have multiple bioactivities in various aspects of biology. However, the role of a polysaccharide derived from Amusium pleuronectes on potential hepatoprotective effects remains unclear. MATERIAL AND METHODS A water-soluble polysaccharide was isolated from Amusium pleuronectes (APS-1) using ultrasound-assisted hot-water extraction. The molecular weight of APS-1 was approximately 11.7 kDa and was determined by calibration with dextran. APS-1 was analyzed by high-performance liquid chromatography (HPLC), and mainly consisted of a uniform glucose polymer...
March 18, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Connor M Pettem, Jennifer M Briens, David M Janz, Lynn P Weber
Selenium (Se) is considered an essential trace element, involved in important physiological and metabolic functions for all vertebrate species. Fish require dietary concentrations of 0.1-0.5 μg Se/g dry mass (d.m.) to maintain normal physiological and selenoprotein function, however concentrations exceeding 3 μg/g d.m. have been shown to cause toxicity. As Se is reported to have a narrow margin between essentiality and toxicity, there is growing concern surrounding the adverse effects of elevated Se exposure caused by anthropogenic activities...
March 8, 2018: Aquatic Toxicology
Antonio De Leo, Margherita Nannini, Giulia Dondi, Donatella Santini, Milena Urbini, Elisa Gruppioni, Pierandrea De Iaco, Anna Myriam Perrone, Maria Abbondanza Pantaleo
BACKGROUND: Gastrointestinal stromal tumors (GIST) are the most common mesenchymal tumors of the gastrointestinal tract and liver and peritoneum are the main sites of recurrence. Ovarian metastases from GIST are very rare. CASE PRESENTATION: A 50 years-old woman was found to have a pelvic mass on transvaginal ultrasound (TV-US) and computed tomography (CT)-scan, considered as a right ovarian mass. The patient underwent surgical abdominal exploration that showed an ileal mass, a normal right ovary and an irregular and vascularized surface of the left ovary...
March 16, 2018: BMC Cancer
Ki-Chul Sung, Mi-Yeon Lee, Jong-Young Lee, Sung-Ho Lee, Jang-Young Kim, Sarah H Wild, Christopher D Byrne
BACKGROUND AND AIMS: It is uncertain whether resolution of fatty liver can improve cardiovascular disease risk factors, independently of changes in body mass index (BMI). Our aim was to test whether resolution of fatty liver is associated with improvements in components of the lipid profile, independently of changes in BMI, and to quantify and compare the magnitude of benefit of resolution of liver fat, and decreases in BMI on the lipid profile. METHODS: 36,195 subjects with fatty liver were studied...
March 8, 2018: Atherosclerosis
Aloma L D'Souza, John R Chevillet, Pejman Ghanouni, Xinrui Yan, Muneesh Tewari, Sanjiv S Gambhir
We have previously shown that low frequency ultrasound can release biomarkers from cells into the murine circulation enabling an amplification and localization of the released biomarker that could be used as a blood-based method to detect cancer earlier and monitor therapy. In this study, we further demonstrate that this technique could be used for characterization of tumors and/or identification of cellular masses of unknown origin due to the release of multiple protein and nucleic acid biomarkers in cells in culture, mice and patients...
2018: PloS One
Zaiyang Long, Donald J Tradup, Pengfei Song, Scott F Stekel, Shigao Chen, Katrina N Glazebrook, Nicholas J Hangiandreou
Because of the rapidly growing use of ultrasound shear wave elastography (SWE) in clinical practices, there is a significant need for development of clinical physics performance assessment methods for this technology. This study aims to report two clinical medical physicists' tasks: (a) acceptance testing (AT) of SWE function on ten commercial ultrasound systems for clinical liver application and (b) comparison of SWE measurements of targets across vendors for clinical musculoskeletal application. For AT, ten GE LOGIQ E9 XDclear 2...
March 15, 2018: Journal of Applied Clinical Medical Physics
Yoshihiro Seo, Tomofumi Nakatsukasa, Seika Sai, Tomoko Ishizu, Noriko Iida, Masayoshi Yamamoto, Tomoko Machino-Ohtsuka, Yasushi Kawakami, Akihiko Nogami, Kazutaka Aonuma
In the management of heart failure (HF), decongestion is critical for improving clinical outcomes in addition to patients' symptoms. Although physicians accept this theory, there are no established markers for the achievement of optimal decongestion status. Organ congestion, in particular liver and kidney congestion, has recently attracted substantial attention. Ultrasound methods have been introduced for assessing organ congestion, although this is merely a preliminary step. Here, we review the clinical implications of the assessment of organ congestion by ultrasound...
February 2018: Cardiovascular Diagnosis and Therapy
Harshavardhan Nagolu, Sudhakar Kattoju, Chidambaranathan Natesan, Meera Krishnakumar, Sunil Kumar
Objective: The purpose of the study is to investigate the usefulness of acoustic radiation force impulse (ARFI) elastography in the characterization of focal solid liver lesions as benign, malignant, or metastatic using ARFI two-dimensional (2D) imaging and ARFI quantification (shear wave velocities [SWVs]). Materials and Methods: Sixty lesions were included in this study. The lesions were classified into three groups: Group I included benign lesions ( n = 25), Group II included malignant lesions ( n = 27), and Group III included metastatic lesions ( n = 8)...
2018: Journal of Clinical Imaging Science
Huanan Li, Deping Zeng, Zhenyu Wang, Liaoqiong Fang, Faqi Li, Zhibiao Wang
AIM: To build up a combined therapy strategy to address limitations of the enhanced permeability and retention (EPR) effect and improve the efficiency of tumor therapy. MATERIALS & METHODS: A pH-sensitive nanocomplex for co-delivery of doxorubicin (DOX) and all-trans retinoic acid (ATRA) was developed based on nanodiamonds (DOX/ATRA-NDs) to enhance intracellular retention of drugs. Meanwhile, ultrasound was employed to enhance tumor vascular penetration of DOX-ATRA-NDs...
March 14, 2018: Nanomedicine
Anne-Kristin Moritz, Claudia Köhler, Vivian Fromme, Karsten Winter, Michaele Alef, Ingmar Kiefer
OBJECTIVE: Ultrasound-guided biopsies are obtained generally to reach a sound diagnosis in the case of sonographically detectable hepatic changes. The most common and well-known complication associated with ultrasound-guided biopsies is haemorrhage after sampling, which may lead to the patient's death. The aim of this study was to evaluate a possible association between alterations in the coagulation parameters and sonographically observable haemorrhage following liver biopsies. MATERIALS AND METHODS: Dogs and cats in which an ultrasound-guided biopsy of the liver had been performed were retrospectively enrolled in the study...
February 2018: Tierärztliche Praxis. Ausgabe K, Kleintiere/Heimtiere
Gijs A Looijen, Bobby K Pranger, Koert P de Jong, Jan Pieter Pennings, Vincent E de Meijer, Joris I Erdmann
BACKGROUND: This study aimed to evaluate the additional value of laparoscopic ultrasound (LUS) to staging laparoscopy (SL) for detecting occult liver metastases in patients with potentially resectable pancreatic head cancer. METHODS: A retrospective cohort study was performed including all patients who underwent SL and LUS between 2005 and 2016. LUS was performed during SL to detect liver metastases not found by preoperative imaging or visual inspection of the liver...
March 12, 2018: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
Ou Cai, Zhenpeng Huang, Ming Li, Chaoqun Zhang, Fengbo Xi, Shiyun Tan
Objective: To investigate the association between Helicobacter pylori ( H. pylori ) infection and nonalcoholic fatty liver disease (NAFLD). Methods: Data from 2051 participants who underwent13 C urea breath test and abdominal ultrasound examinations was collected. Participants were allocated to NAFLD risk group and NAFLD nonrisk group based on definite risk factors for NAFLD. The relationship between H. pylori infection and NAFLD was analyzed. Results: No significant difference was found between rates of H...
2018: Gastroenterology Research and Practice
Tom Williamson, Scott Everitt, Sunita Chauhan
BACKGROUND: High intensity focused ultrasound (HIFU) represents a non-invasive method for the destruction of cancerous tissue within the body. Heating of targeted tissue by focused ultrasound transducers results in the creation of ellipsoidal lesions at the target site, the locations of which can have a significant impact on treatment outcomes. Towards this end, this work describes a method for the optimization of lesion positions within arbitrary tumors, with specific anatomical constraints...
February 26, 2018: Computers in Biology and Medicine
Yunes Panahi, Parisa Kianpour, Reza Mohtashami, Stephen L Atkin, Alexandra E Butler, Ramezan Jafari, Roghayeh Badeli, Amirhossein Sahebkar
Non-alcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease worldwide and is potentially treatable, though there are few therapeutic agents available. Artichoke leaf extract (ALE) has shown potential as a hepatoprotective agent. This study sought to determine if ALE had therapeutic utility in patients with established NAFLD. In this randomized double-blind placebo-controlled parallel-group trial, 100 subjects with ultrasound-diagnosed NAFLD were randomized to either ALE 600 mg daily or placebo for a 2-month period...
March 9, 2018: Phytotherapy Research: PTR
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