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https://www.readbyqxmd.com/read/28223736/percutaneous-electrochemotherapy-in-the-treatment-of-portal-vein-tumor-thrombosis-at-hepatic-hilum-in-patients-with-hepatocellular-carcinoma-in-cirrhosis-a-feasibility-study
#1
Luciano Tarantino, Giuseppina Busto, Aurelio Nasto, Raffaele Fristachi, Luigi Cacace, Maria Talamo, Catello Accardo, Sara Bortone, Paolo Gallo, Paolo Tarantino, Riccardo Aurelio Nasto, Matteo Nicola Dario Di Minno, Pasquale Ambrosino
AIM: To treated with electrochemotherapy (ECT) a prospective case series of patients with liver cirrhosis and Vp3-Vp4- portal vein tumor thrombus (PVTT) from hepatocellular carcinoma (HCC), in order to evaluate the feasibility, safety and efficacy of this new non thermal ablative technique in those patients. METHODS: Six patients (5 males and 1 female), aged 61-85 years (mean age, 70 years), four in Child-Pugh A and two in Child-Pugh B class, entered our study series...
February 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28222646/effectiveness-of-contrast-enhanced-ultrasound-and-serum-liver-enzyme-measurement-in-detection-and-classification-of-blunt-liver-trauma
#2
Da-Wei Zhao, Meng Tian, Le-Tian Zhang, Tao Li, Jie Bi, Jia-Ying He, Ying-Ying Zhang
Objective This study was performed to identify the correlation between contrast-enhanced ultrasound (CEUS) and contrast-enhanced multidetector computed tomography (CE-MDCT) as well as the correlation between serum liver enzyme concentrations and CE-MDCT in classification of the severity of blunt hepatic trauma using CE-MDCT as a reference standard. Materials and methods A blunt liver trauma model was created using 20 rabbits, and CE-MDCT, CEUS, and serum liver enzyme assays were performed. A radiologist and an ultrasound physician independently evaluated the degree of liver trauma...
February 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28218202/contrast-enhanced-endoscopic-ultrasound-and-endoscopic-ultrasound-elastography-in-gastrointestinal-stromal-tumors
#3
Andre Ignee, Christian Jenssen, Michael Hocke, Yi Dong, Wen-Ping Wang, Xin-Wu Cui, Matthias Woenckhaus, Sevastita Iordache, Adrian Saftoiu, Gudrun Schuessler, Christoph F Dietrich
BACKGROUND AND OBJECTIVES: Gastrointestinal stromal tumors (GISTs) represent the largest group of subepithelial tumors (SET) of the upper gastrointestinal (GI) tract. They may show malignant behavior, in contrast to other SET. Endoscopic ultrasound (EUS) is frequently used to characterize SET. With the introduction of contrast-enhanced ultrasound (CEUS) into EUS (CE-EUS), distinct enhancement patterns can be detected. In the presented study, the characteristic features of CE-EUS in GIST are analyzed and compared with those of other SET...
January 2017: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/28211805/diagnostic-accuracy-and-interobserver-variability-of-dynamic-vascular-pattern-dvp-in-primary-liver-malignancies-a-simple-semiquantitative-tool-for-the-analysis-of-contrast-enhancement-patterns
#4
B Schellhaas, M J Waldner, R S GÖrtz, F Vitali, Ch Kielisch, L Pfeifer, D Strobel, R Janka, M F Neurath, D Wildner
BACKGROUND: Contrast-enhanced ultrasound (CEUS) is a valuable tool in the diagnostic approach of focal liver lesions, but occasionally subjective and observer-dependent. Semiquantitative evaluation of dynamic CEUS (DCEUS) with standardised software programmes such as Dynamic Vascular Pattern (DVP) could help to improve diagnostic accuracy and objectivity in liver tumour assessment. OBJECTIVES: The present study aimed at evaluation of diagnostic accuracy of DVP in a clinical setting...
February 17, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28210085/macro-and-microcirculation-patterns-of-intrahepatic-blood-flow-changes-in-patients-with-hereditary-hemorrhagic-telangiectasia
#5
Roland C Schelker, Ana P Barreiros, Christina Hart, Wolfgang Herr, Ernst-Michael Jung
AIM: To evaluated vascular dynamic processes in the liver of hereditary hemorrhagic telangiectasia (HHT) patients by ultrasound (US) considering quantitative analytic methods. METHODS: The imaging features on US and contrast-enhanced ultrasound (CEUS) in 18 patients diagnosed with HHT were retrospectively analyzed. Regarding CEUS, real-time contrast harmonic imaging and sulfur hexafluoride-filled microbubbles were used. RESULTS: HVaMs were identified in all 18 patients...
January 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28209559/irreversible-electroporation-for-the-ablation-of-renal-cell-carcinoma-a-prospective-human-in-vivo-study-protocol-ideal-phase-2b
#6
Mara Buijs, Krijn P van Lienden, Peter Gk Wagstaff, Matthijs Jv Scheltema, Daniel M de Bruin, Patricia J Zondervan, Otto M van Delden, Ton G van Leeuwen, Jean Jmch de la Rosette, M Pilar Laguna
BACKGROUND: Irreversible electroporation (IRE) is an emerging technique delivering electrical pulses to ablate tissue, with the theoretical advantage to overcome the main shortcomings of conventional thermal ablation. Recent short-term research showed that IRE for the ablation of renal masses is a safe and feasible treatment option. In an ablate and resect design, histopathological analysis 4 weeks after radical nephrectomy demonstrated that IRE-targeted renal tumors were completely covered by ablation zone...
February 16, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28194993/preoperative-prediction-of-papillary-thyroid-microcarcinoma-via-multiparameter-ultrasound
#7
Hui Juan Ma, Jing Chun Yang, Zhen Peng Leng, Ying Chang, Hua Kang, Liang Hong Teng
Background Accurate diagnosis of papillary thyroid microcarcinoma (PTMC) is important for further management. Ultrasound (US) is the most frequently used imaging modality for PTMC. Purpose To evaluate the diagnostic value of conventional US, contrast-enhanced ultrasound (CEUS) and real-time elastography (RTE) for patients with PTMC. Material and Methods In total, 135 patients with subcentimeter thyroid nodules who underwent conventional US, CEUS, and RTE before surgery were enrolled. A multivariate logistic regression analysis was performed to assess the independent predictors of PTMC...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28191530/contrast-enhanced-ultrasound-a-promising-method-for-renal-microvascular-perfusion-evaluation
#8
REVIEW
Ling Wang, Chandra Mohan
This article reviews the application of contrast-enhanced ultrasound (CEUS) in gauging renal microvascular perfusion in diverse renal diseases. The unique nature of the contrast agents used in CEUS provides real-time and quantitative imaging of the vasculature. In addition to the traditional use of CEUS for evaluation of kidney masses, it also emerges as a safe and effective imaging approach to assess microvascular perfusion in diffuse renal lesions, non-invasively. Although the precise CEUS parameters that may best predict disease still warrant systematic evaluation, animal models and limited clinical trials in humans raise hopes that CEUS could outcompete competing modalities as a first-line tool for assessing renal perfusion non-invasively, even in ailments such as acute kidney injury and chronic kidney disease...
September 1, 2016: Journal of Translational Internal Medicine
https://www.readbyqxmd.com/read/28186881/bayesian-quantification-of-contrast-enhanced-ultrasound-images-with-adaptive-inclusion-of-an-irreversible-component
#9
Gaia Rizzo, Matteo Tonietto, Marco Castellaro, Bernd Raffeiner, Alessandro Coran, Ugo Fiocco, Roberto Stramare, Enrico Grisan
Contrast Enhanced Ultrasound (CEUS) is a sensitive imaging technique to assess tissue vascularity and it can be particularly useful in early detection and grading of arthritis. In a recent study we have shown that a Gamma-variate can accurately quantify synovial perfusion and it is flexible enough to describe many heterogeneous patterns. However, in some cases the heterogeneity of the kinetics can be such that even the Gamma model does not properly describe the curve, with a high number of outliers.
December 8, 2016: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28180203/the-efsumb-website-a-great-source-for-ultrasound-information-and-education
#10
Christoph F Dietrich, Lynne Rudd, Adrian Saftiou, Odd Helge Gilja
The aim of this updated EFSUMB-website guide is to introduce readers to EFSUMB's wide ranging activities. The most recent are the guidelines on interventional ultrasound and intestinal ultrasound and updated CEUS Non-Liver and Elastography Liver Guidelines which can be freely downloaded. Hosting eBooks on our website is another new departure, most importantly the EFSUMB Course Book on Ultrasound available in a second edition as an eReader and an online Student Edition of the ECB. EFSUMB has been active with updating Guidelines; those mentioned above have all been revised or written in thelast two years...
January 31, 2017: Medical Ultrasonography
https://www.readbyqxmd.com/read/28174490/clinical-value-of-contrast-enhanced-ultrasound-in-improving-diagnostic-accuracy-rate-of-transthoracic-biopsy-of-anterior-medial-mediastinal-lesions
#11
Jingjing Fu, Wei Yang, Song Wang, Jing Bai, Hao Wu, Haiyue Wang, Kun Yan, Minhua Chen
OBJECTIVE: To evaluate the clinical value of contrast-enhanced ultrasound (CEUS) in transthoracic biopsy of anterior-medial mediastinal lesions. METHODS: A total of 123 patients with anterior or middle mediastinum lesions required ultrasound guided transthoracic biopsy for pathological diagnosis. Among them, 72 patients received CEUS examinations before biopsy. After CEUS, 8 patients were excluded from biopsy and the rest 64 patients underwent biopsy (CEUS group)...
December 2016: Chinese Journal of Cancer Research, Chung-kuo Yen Cheng Yen Chiu
https://www.readbyqxmd.com/read/28173725/contrast-enhanced-ultrasound-using-sulfur-hexafluoride-is-safe-in-the-pediatric-setting
#12
Alvaro Torres, Seppo K Koskinen, Henrik Gjertsen, Björn Fischler
Background Contrast-enhanced ultrasound (CEUS) by using sulfur hexafluoride microbubbles is not licensed for use in children, but its off-label use is widespread. Purpose To outline our experience with the off-label use of CEUS in children, specifically with regards to safety. Material and Methods We retrieved all records of 10681 patients aged under 18 years who underwent abdominal ultrasound (US) January 2004 to December 2014. We then identified those who underwent an abdominal CEUS using sulfur hexafluoride microbubbles...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28168868/oesophageal-doppler-guided-optimization-of-cardiac-output-does-not-increase-visceral-microvascular-blood-flow-in-healthy-volunteers
#13
Thomas P Heinink, David J Read, William K Mitchell, Ashish Bhalla, Jonathan N Lund, Bethan E Phillips, John P Williams
BACKGROUND: Oesophageal Doppler monitoring (ODM) is used clinically to optimize cardiac output (CO) and guide fluid therapy. Despite limited experimental evidence, it is assumed that increasing CO increases visceral microvascular blood flow (MBF). We used contrast-enhanced ultrasound (CEUS) to assess whether ODM-guided optimization of CO altered MBF. METHODS: Sixteen healthy male volunteers (62 ± 3·4 years) were studied. Baseline measurements of CO were recorded via ODM...
February 6, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/28151552/how-to-develop-a-contrast-enhanced-ultrasound-program
#14
Richard G Barr
With the recent Food and Drug Administration approval of Lumason (sulfur hexafluoride lipid-type A microsphere, Bracco Diagnostics Inc, Monroe Township, NJ) for contrast-enhanced ultrasound (CEUS) to characterize focal liver lesions in both adult and pediatric patients, widespread use of CEUS is expected in the United States. This paper provides guidance in setting up a CEUS program, and reviews the practical details that will need to be instituted in a standard ultrasound department to provide both safe and efficient use of CEUS...
February 2, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28145108/detection-of-liver-metastases-in-cancer-patients-with-geographic-fatty-infiltration-of-the-liver-the-added-value-of-contrast-enhanced-sonography
#15
Tommaso Vincenzo Bartolotta, Adele Taibbi, Dario Picone, Andrea Anastasi, Massimo Midiri, Roberto Lagalla
Purpose: The aim of this study is to assess the role of contrast-enhanced ultrasonography (CEUS) in the detection of liver metastases in cancer patients with geographic liver fatty deposition on greyscale ultrasonography (US). Methods: Thirty-seven consecutive cancer patients (24 women and 13 men; age, 33 to 80 years; mean, 58.1 years) with geographic liver fatty deposition, but without any detectable focal liver lesion on greyscale US, underwent sulphur hexafluoride-enhanced US...
November 16, 2016: Ultrasonography
https://www.readbyqxmd.com/read/28144721/focal-fat-deposition-in-the-liver-diagnostic-challenges-on-imaging
#16
REVIEW
Jong Keon Jang, Hyun-Jung Jang, Jin Sil Kim, Tae Kyoung Kim
While focal fat deposition in the liver mostly occurs in typical locations related to non-portal venous supply, unusual patterns of focal fat deposition, including multi-nodular, mass-like, and perivascular patterns, mimic malignancies and cause diagnostic challenges. Patients with unusual focal fat deposition often have potential underlying etiologies such as diabetes, alcohol abuse, metabolic disease, or various medications/chemotherapy. Some cases can be explained by non-portal venous supply or ischemia...
February 1, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28144402/impact-of-contrast-enhanced-ultrasound-in-patients-with-renal-function-impairment
#17
Rossano Girometti, Tiziano Stocca, Elena Serena, Antonio Granata, Michele Bertolotto
AIM: To investigate the role of contrast enhanced ultrasound (CEUS) in evaluating patients with renal function impairment (RFI) showing: (1) acute renal failure (ARF) of suspicious vascular origin; or (2) suspicious renal lesions. METHODS: We retrospectively evaluated patients addressed to CEUS over an eight years period to rule-out vascular causes of ARF (first group of 50 subjects) or assess previously found suspicious renal lesions (second group of 41 subjects with acute or chronic RFI)...
January 28, 2017: World Journal of Radiology
https://www.readbyqxmd.com/read/28141682/can-ultrasound-with-contrast-enhancement-replace-nonenhanced-computed-tomography-scans-in-patients-with-contraindication-to-computed-tomography-contrast-agents
#18
Summit Sawhney, Stephanie R Wilson
PURPOSE: Our purpose is to determine the efficacy of ultrasound (US), with the addition of contrast enhancement (CEUS), in the identification and characterization of abdominal pathology compared with nonenhanced computed tomography (CT) scan (NECT). METHODS: This prospective cohort study recruited 197 patients with NECT, the majority with renal failure, to have US, with addition of CEUS, if focal pathology was detected, occurring in 145 patients. Nonenhanced CT scan, US, and CEUS images/video files were presented to 2 blinded readers, in anonymous order...
January 30, 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28141517/computer-aided-diagnosis-of-focal-liver-lesions-using-contrast-enhanced-ultrasonography-with-perflubutane-microbubbles
#19
Satoshi Kondo, Kazuya Takagi, Mutsumi Nishida, Takahito Iwai, Yusuke Kudo, Kouji Ogawa, Toshiya Kamiyama, Hitoshi Shibuya, Kaoru Kahata, Chikara Shimizu
This study proposes an automatic classification method based on machine learning in contrast-enhanced ultrasonography (CEUS) of focal liver lesions (FLLs) using the contrast agent Sonazoid R ⃝ . This method yields spatial and temporal features in the arterial phase, portal phase, and post-vascular phase, as well as max-hold images. The lesions are classified as benign or malignant and again as benign, hepatocellular carcinoma (HCC), or metastatic liver tumor using support vector machines (SVM) with a combination of selected optimal features...
January 26, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28133613/contrast-enhanced-ultrasound-guided-biopsy-of-undetermined-abdominal-lesions-a-multidisciplinary-decision-making-approach
#20
Feng Mao, Yi Dong, Zhengbiao Ji, Jiaying Cao, Wen-Ping Wang
Aim. To investigate the value of contrast-enhanced ultrasound (CEUS) guided biopsy of undetermined abdominal lesions in multidisciplinary treatment (MDT) decision-making approach. Methods. Between Jan 2012 and Dec 2015, 60 consecutive patients (male, 37; female, 23; mean age, 51.3 years ± 14.6) who presented with undetermined abdominal lesions were included. CEUS and core needle percutaneous biopsy was performed under real-time CEUS guidance in all lesions. Data were recorded and compared with conventional ultrasound (US) guidance group (n = 75)...
2017: BioMed Research International
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