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Liver ultrasound

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https://www.readbyqxmd.com/read/28099341/laparoscopic-distal-splenoadrenal-shunt-for-the-treatment-of-portal-hypertension-in-children-with-congenital-hepatic-fibrosis-a-case-report
#1
Jin-Shan Zhang, Wei Cheng, Long Li
BACKGROUND: The distal splenorenal shunt is an effective procedure for the treatment of portal hypertension in children. However, there has been no report about laparoscopic distal splenorenal shunt in the treatment of portal hypertension in children. METHODS: From December 2015 to August 2016, 4 children with upper gastrointestinal bleeding underwent laparoscopic distal splenoadrenal shunt. Portal hypertension and splenomegaly were demonstrated on the preoperative computed tomography (CT) and sonography...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28098774/learning-to-diagnose-cirrhosis-with-liver-capsule-guided-ultrasound-image-classification
#2
Xiang Liu, Jia Lin Song, Shuo Hong Wang, Jing Wen Zhao, Yan Qiu Chen
This paper proposes a computer-aided cirrhosis diagnosis system to diagnose cirrhosis based on ultrasound images. We first propose a method to extract a liver capsule on an ultrasound image, then, based on the extracted liver capsule, we fine-tune a deep convolutional neural network (CNN) model to extract features from the image patches cropped around the liver capsules. Finally, a trained support vector machine (SVM) classifier is applied to classify the sample into normal or abnormal cases. Experimental results show that the proposed method can effectively extract the liver capsules and accurately classify the ultrasound images...
January 13, 2017: Sensors
https://www.readbyqxmd.com/read/28097080/immunoglobulin-m-nephropathy-in-a-patient-with-wilson-s-disease
#3
Zain Ul Abideen, Zoya Sajjad, Asna Haroon Khan, Nadira Mamoon, Muhammad Bilal, Khaja Hameeduddin Mujtaba Quadri
Immunoglobulin M nephropathy (IgMN) is characterized by the deposition of immunoglobulin M in a dominant distribution in the renal glomeruli. Primary immunoglobulin M nephropathy is diagnosed after consistent light microscopy (LM), immunofluorescence (IF), electron microscopy (EM) results, and exclusion of known systemic disorders causing immunoglobulin M deposition in the glomeruli. The secondary disease has been reported with a few conditions though it has never been reported with any primary disease of the liver...
December 13, 2016: Curēus
https://www.readbyqxmd.com/read/28097007/safety-assessment-in-rats-and-dogs-of-acoustic-cluster-therapy-a-novel-concept-for-ultrasound-mediated-targeted-drug-delivery
#4
Oddvar Myhre, Marie Bjørgan, Derek Grant, Svein-Olaf Hustvedt, Per C Sontum, Hubert Dirven
Acoustic Cluster Therapy (ACT) represents a novel concept for targeted drug delivery. Ultrasound is applied to activate intravenously administered free-flowing clusters of microbubbles and microdroplets within the target pathology, depositing 20-30 μm large bubbles in the microvasculature for 5-10 min. Further application of ultrasound induces biomechanical effects which increase vascular permeability and enhance localized extravasation of coadministered drugs. Herein we report investigations done to assess the preclinical safety of ACT, using doses up to 1 mL/kg (3 μL perfluoromethyl-cyclopentane/kg)...
December 2016: Pharmacology Research & Perspectives
https://www.readbyqxmd.com/read/28096727/new-radiofrequency-device-to-reduce-bleeding-after-core-needle-biopsy-experimental-study-in-a-porcine-liver-model
#5
Sanghyeok Lim, Hyunchul Rhim, Min Woo Lee, Kyoung Doo Song, Tae Wook Kang, Young-Sun Kim, Hyo Keun Lim
OBJECTIVE: To evaluate the in vivo efficiency of the biopsy tract radiofrequency ablation for hemostasis after core biopsy of the liver in a porcine liver model, including situations with bleeding tendency and a larger (16-gauge) core needle. MATERIALS AND METHODS: A preliminary study was performed using one pig to determine optimal ablation parameters. For the main experiment, four pigs were assigned to different groups according to heparinization use and biopsy needle caliber...
January 2017: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
https://www.readbyqxmd.com/read/28095996/antenatal-predictors-of-outcome-in-prenatally-diagnosed-congenital-diaphragmatic-hernia-cdh
#6
REVIEW
Titilayo Oluyomi-Obi, Verena Kuret, Pramod Puligandla, Abhay Lodha, Helen Lee-Robertson, Kovid Lee, David Somerset, Joann Johnson, Greg Ryan
BACKGROUND: Pulmonary hypoplasia is the main cause of mortality in isolated congenital diaphragmatic hernia (CDH) and its prediction is paramount when counseling parents. We sought to identify antenatal parameters that predicted neonatal mortality in CDH. METHOD: Search was conducted in MEDLINE, EMBASE, Cochrane Database of Systematic reviews, PubMed, Scopus, and Web of Science on the ability of lung-to-head ratio (LHR), observed-to-expected LHR (o/e LHR), total fetal lung volume (TFLV), o/e TFLV, percentage predicted lung volume (PPLV) and degree of liver herniation to predict neonatal morbidity and mortality in fetuses with CDH...
December 21, 2016: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28094661/diagnosis-of-pancreatic-disease-in-feline-platynosomosis
#7
Liza S Köster, Linda Shell, Jennifer Ketzis, Sreekumari Rajeev, Oscar Illanes
Objectives Platynosomum species are cat-specific parasitic trematodes that parasitize the biliary ducts and gall bladder. Due to the common connection to the major duodenal papilla of the pancreas and common bile ducts in addition to the periductal proximity of the pancreas, it is possible that platynosomosis could cause pancreatitis. The objective of this study was to determine whether platynosomosis, a commonly diagnosed parasitic disease in cats on St Kitts, has any association with pancreatic disease. Methods To investigate this possibility, the pancreas of free-roaming cats with naturally acquired platynosomosis were evaluated via ultrasound, serum concentrations of feline pancreatic lipase (fPL), cobalamin, folate and feline trypsin-like immunoreactivity (fTLI) and histopathology...
January 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28093301/protocol-driven-management-of-suspected-common-duct-stones
#8
Anthony Manning, Richard Frazee, Stephen Abernathy, Claire Isbell, Travis Isbell, Justin Regner, Yolanda Munoz Maldanado, Randall Smith
INTRO: Common duct stones can be diagnosed by magnetic resonance cholangiopancreatography (MRCP), endoscopic ultrasound/endoscopic retrograde cholangiopancreatography (EUS/ERCP), and intra-operative cholangiogram (IOC). In 2015, our group adopted a standard approach of preoperative EUS/ERCP followed by laparoscopic cholecystectomy for patients with an admission bilirubin over 4.0 (mg/dL). For bilirubin less than 4.0, laparoscopic cholecystectomy with IOC was the initial procedure. Post-operative EUS/ERCP with endoscopic sphincterotomy was pursued for positive IOC...
January 13, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28092783/pulmonary-emboli-cardiac-arrest-with-cpr-complication-liver-laceration-and-massive-abdominal-bleed-a-case-report
#9
John Lundqvist, Jan G Jakobsson
INTRODUCTION: Massive pulmonary emboli may cause right ventricular failure and backward stasis with parenchymal organ swelling thus increasing the risk for laceration, e.g. if CPR is needed. PRESENTATION OF CASE: A 28-year-old Colombian female with no medical history but taking contraceptive pills and having had a recent longer flight was admitted to Danderyds hospital Emergency Department because of respiratory failure. She developed cardiac arrest in the emergence department following the emergent diagnosis of pulmonary emboli...
January 3, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28092532/improved-shear-wave-group-velocity-estimation-method-based-on-spatiotemporal-peak-and-thresholding-motion-search
#10
Carolina Amador Carrascal, Shigao Chen, Armando Manduca, James F Greenleaf, Matthew Urban
Quantitative ultrasound elastography is increasingly being used in the assessment of chronic liver disease. Many studies have reported ranges of liver shear wave velocities values for healthy individuals and patients with different stages of liver fibrosis. Nonetheless, ongoing efforts exist to stabilize quantitative ultrasound elastography measurements by assessing factors that influence tissue shear wave velocity values, such as food intake, body mass index (BMI), ultrasound scanners, scanning protocols, ultrasound image quality, etc...
January 11, 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28090656/real-time-monitoring-of-tissue-displacement-and-temperature-changes-during-mr-guided-high-intensity-focused-ultrasound
#11
Pierre Bour, Fabrice Marquet, Valéry Ozenne, Solenn Toupin, Erik Dumont, Jean-François Aubry, Matthieu Lepetit-Coiffe, Bruno Quesson
PURPOSE: The therapy endpoint most commonly used in MR-guided high intensity focused ultrasound is the thermal dose. Although namely correlated with nonviable tissue, it does not account for changes in mechanical properties of tissue during ablation. This study presents a new acquisition sequence for multislice, subsecond and simultaneous imaging of tissue temperature and displacement during ablation. METHODS: A single-shot echo planar imaging sequence was implemented using a pair of motion-encoding gradients, with alternated polarities...
January 16, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28090475/use-of-omega-3-polyunsaturated-fatty-acids-to-treat-inspissated-bile-syndrome-a-case-report
#12
Woo Young Jun, Min Jeng Cho, Hye Seung Han, Sun Hwan Bae
Inspissated bile syndrome (IBS) is a rare condition in which thick intraluminal bile, including bile plugs, sludge, or stones, blocks the extrahepatic bile ducts in an infant. A 5-week-old female infant was admitted for evaluation of jaundice and acholic stool. Diagnostic tests, including ultrasound sonography, magnetic resonance cholangiopancreatography, and a hepatobiliary scan, were not conclusive. Although the diagnosis was unclear, the clinical and laboratory findings improved gradually on administration of urodeoxycholic acid and lipid emulsion containing omega-3 polyunsaturated fatty acids (PUFAs) for 3 weeks...
December 2016: Pediatric Gastroenterology, Hepatology & Nutrition
https://www.readbyqxmd.com/read/28089429/diagnosis-and-quantification-of-fibrosis-steatosis-and-hepatic-siderosis-through-multiparametric-magnetic-resonance-imaging
#13
M Stoopen-Rometti, E R Encinas-Escobar, C R Ramirez-Carmona, E Wolpert-Barraza, E Kimura-Hayama, L A Sosa-Lozano, R Favila, Y Kimura-Fujikami, J A Saavedra-Abril, A Loaeza-Del Castillo
BACKGROUND: The presence of liver fibrosis is the common denominator in numerous chronic liver diseases that can progress to fibrosis and hepatocellular carcinoma. Most important, with respect to frequency, are viral hepatitis and non-alcoholic fatty liver disease, the prevalence of which is increasing in epidemic proportions. Liver biopsy, albeit imperfect, continues to be the criterion standard, but in many clinical situations tends to be replaced with noninvasive imaging methods. OBJECTIVES: The aim of the present article was to describe our imaging department experience with magnetic resonance elastography and to analyze and discuss recently published results in gastroenterology, hepatology, and radiology from other authors in the literature, complemented with a PubMed search covering the last 10 years...
January 12, 2017: Revista de Gastroenterología de México
https://www.readbyqxmd.com/read/28080913/liver-ultrasonography-in-dolphins-use-of-ultrasonography-to-establish-a-technique-for-hepatobiliary-imaging-and-to-evaluate-metabolic-disease-associated-liver-changes-in-bottlenose-dolphins-tursiops-truncatus
#14
Kelsey E Seitz, Cynthia R Smith, Stanley L Marks, Stephanie K Venn-Watson, Marina Ivančić
The objective of this study was to establish a comprehensive technique for ultrasound examination of the dolphin hepatobiliary system and apply this technique to 30 dolphins to determine what, if any, sonographic changes are associated with blood-based indicators of metabolic syndrome (insulin greater than 14 μIU/ml or glucose greater than 112 mg/dl) and iron overload (transferrin saturation greater than 65%). A prospective study of individuals in a cross-sectional population with and without elevated postprandial insulin levels was performed...
December 2016: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28079767/primary-gastric-choriocarcinoma-presenting-as-a-pregnancy-of-unknown-location
#15
Alyssa Larish, Amanika Kumar, Sarah Kerr, Carrie Langstraat
BACKGROUND: Pregnancy of unknown location presents a diagnostic challenge, in rare occasions leading to the diagnosis of malignancy. We describe a case of β-hCG-secreting nongestational primary gastric choriocarcinoma presenting as a pregnancy of unknown location. CASE: A 37-year-old woman, gravida 4 para 3013, presented with several days of vaginal bleeding and rising β-hCG level without ultrasound localization of pregnancy. The diagnosis of pregnancy of unknown location was made and methotrexate administered at a β-hCG level of 7,779 milli-international units/mL...
January 9, 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28079240/new-index-for-the-diagnosis-of-liver-fibrosis-in-schistosomiasis-mansoni
#16
Ana Virgínia Matos Sá Barreto, Vinícius Martins Alecrim, Tibério Batista de Medeiros, Ana Lúcia Coutinho Domingues, Edmundo Pessoa Lopes, João Roberto Maciel Martins, Helena Bonciani Nader, George Tadeu Nunes Diniz, Silvia Maria Lucena Montenegro, Clarice Neuenschwander Lins de Morais
BACKGROUND: - Periportal fibrosis is the major pathological consequence of the Schistosoma mansoni infection. OBJECTIVE: - To evaluate the accuracy of serum markers and to construct an index to assess fibrosis. METHODS: - Patients (n=116) with schistosomiasis were evaluated by ultrasound scan and measurements of serum levels of aminotransferases, γ-glutamyl transferase, alkaline phosphatase, hyaluronic acid, cytokines and platelets. Ultrasound images were used to evaluate the fibrosis using Niamey's classification and identified 19 patients without periportal fibrosis (patterns A and B), 48 with mild to moderate fibrosis (C and D) and 49 with advanced fibrosis (E and F)...
January 2017: Arquivos de Gastroenterologia
https://www.readbyqxmd.com/read/28078737/3d-assessment-of-the-umbilical-vein-deviation-angle-uvda-for-the-prediction-of-liver-herniation-in-left-congenital-diaphragmatic-hernia
#17
Nicola Volpe, Eleonora Mazzone, Brunella Muto, Alice Suprani, Tiziana Fanelli, Christine Tita Kaihura, Andrea Dall'Asta, Giuseppe Pedrazzi, Carmine Del Rossi, Enrico Maria Silini, Cinzia Magnani, Paolo Volpe, Tullio Ghi, Tiziana Frusca
OBJECTIVES: To introduce a new sonographic marker of intrathoracic liver herniation in fetuses with left congenital diaphragmatic hernia (CDH) METHODS: In a consecutive series of fetuses with isolated CDH an ultrasound volume of the fetal abdomen was acquired. On this the offline calculation of the angle formed by the midline of the abdomen (joining the center of the vertebral body to the abdominal insertion of the umbilical cord) and a second line joining the center of the vertebral body to the intra-abdominal convexity of the umbilical vein was carried out (Umbilical Vein Deviation Angle or UVDA)...
January 12, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28077898/quality-improvement-of-liver-ultrasound-images-using-fuzzy-techniques
#18
Azadeh Bayani, Mostafa Langarizadeh, Amir Reza Radmard, Ahmadreza Farzaneh Nejad
BACKGROUND: Liver ultrasound images are so common and are applied so often to diagnose diffuse liver diseases like fatty liver. However, the low quality of such images makes it difficult to analyze them and diagnose diseases. The purpose of this study, therefore, is to improve the contrast and quality of liver ultrasound images. METHODS: In this study, a number of image contrast enhancement algorithms which are based on fuzzy logic were applied to liver ultrasound images - in which the view of kidney is observable - using Matlab2013b to improve the image contrast and quality which has a fuzzy definition; just like image contrast improvement algorithms using a fuzzy intensification operator, contrast improvement algorithms applying fuzzy image histogram hyperbolization, and contrast improvement algorithms by fuzzy IF-THEN rules...
December 2016: Acta Informatica Medica: AIM
https://www.readbyqxmd.com/read/28073517/predictive-factors-of-long-term-colorectal-cancer-survival-after-ultrasound-controlled-metastatic-hepatic-ablation
#19
Carmen Rosa Hernández-Socorro, Pedro Saavedra, José Ramírez Felipe, Uriel Bohn Sarmiento, Sergio Ruiz-Santana
BACKGROUND AND OBJECTIVE: The risk factors associated to long-term survival were assessed in patients with liver metastases of colorectal carcinoma undergoing ablative therapies. PATIENTS AND METHODS: Single-centre cohort study, retrospectively analysed and prospectively collected consecutive patients with unresectable metastatic liver disease of colorectal carcinoma treated with ablative therapies between 1996 and 2013. Factors associated with survival time were identified using Cox's proportional hazard model with time-dependent covariates...
January 7, 2017: Medicina Clínica
https://www.readbyqxmd.com/read/28073412/-clinical-effect-of-ultrasound-guided-injection-of-biodegradable-poly-lactic-co-glycolic-acid-fe3o4-in-situ-implant-for-magnetic-thermal-ablation-in-treatment-of-nude-mice-with-human-liver-cancer-smmc-7721-cells
#20
B Liang, G Q Zuo, Y Y Zheng, S He, D Y Zuo
Objective: To prepare the Fe3O4-loaded biodegradable liquid-solid phase inversion poly(lactic-co-glycolic acid) (PLGA) in situ implant for ultrasound-guided injection into nude mouse tumor model, and to investigate its clinical effect in thermomagnetic treatment of nude mice with human liver cancer SMMC-7721 cells in an alternating magnetic field. Methods: An in situ implant containing 10% Fe3O4 was prepared, and 50 μl Fe3O4-PLGA-NMP gel was injected into the subcutaneous tissue of Kunming mice. The degradation of this material was observed for 2 consecutive months, and the changes in body weight were recorded...
December 20, 2016: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
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