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eus elastography

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https://www.readbyqxmd.com/read/29566479/a-prospective-blinded-study-of-endoscopic-ultrasound-elastography-in-liver-disease-towards-a-virtual-biopsy
#1
Allison R Schulman, Ming V Lin, Anna Rutherford, Walter W Chan, Marvin Ryou
BACKGROUND/AIMS: Liver biopsy has traditionally been used for determining the degree of fibrosis, however there are several limitations. Endoscopic ultrasound (EUS) real-time elastography (RTE) is a novel technology that uses image enhancement to display differences in tissue compressibility. We sought to assess whether liver fibrosis index (LFI) can distinguish normal, fatty, and cirrhotic liver tissue. METHODS: A total of 50 patients undergoing EUS were prospectively enrolled...
March 2018: Clinical Endoscopy
https://www.readbyqxmd.com/read/29503076/ultrasound-endoscopic-ultrasound-elastography-and-the-strain-ratio-in-differentiating-benign-from-malignant-lymph-nodes
#2
Hussein Okasha, Shaimaa Elkholy, Mohamed Sayed, Mohamed El-Sherbiny, Ramy El-Hussieny, Emad El-Gemeie, Waleed Al-Nabawy, Moustafa Saeed Mohamed, Yahia Elsherif
BACKGROUND AND STUDY AIMS: Endoscopic ultrasound elastography (EUS-elastography), or sono-elastography, has emerged in the past 2 decades as a qualitative method of estimating tissue stiffness. Strain elastography allows for semi-quantitative measurements of the average elasticity of a lesion, and previous studies have proposed the strain ratio (SR) for overcoming the limitations of the elasticity score. The main objective of this study is to assess the specificity, sensitivity and predictive values of the SR measured by EUS-elastography in differentiating benign from malignant lymph nodes (LNs)...
March 2018: Arab Journal of Gastroenterology: the Official Publication of the Pan-Arab Association of Gastroenterology
https://www.readbyqxmd.com/read/29451165/eus-elastography-how-to-do-it
#3
Christoph F Dietrich, Ellison Bibby, Christian Jenssen, Adrian Saftoiu, Julio Iglesias-Garcia, Roald F Havre
Strain elastography as used in EUS (EUS-real-time tissue elastography [RTE]) is a qualitative technique and provides information on the relative stiffness between one tissue and another. This article reviews the principles, technique, and interpretation of EUS-RTE in various organs. It includes information on how to optimize the technique as well as a discussion on pitfalls and artifacts. We also refer to the article describing RTE using conventional ultrasound transducers.
January 2018: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/29387705/technique-of-qualitative-and-semiquantitative-eus-elastography-in-pancreatic-examination
#4
Mădălin Ionuţ Costache, Daniela Dumitrescu, Adrian Săftoiu
No abstract text is available yet for this article.
December 2017: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/29329992/eus-elastography-strain-ratio-and-fractal-based-quantitative-analysis-for-the-diagnosis-of-solid-pancreatic-lesions
#5
Silvia Carrara, Milena Di Leo, Fabio Grizzi, Loredana Correale, Rahal Daoud, Andrea Anderloni, Francesco Auriemma, Alessandro Fugazza, Paoletta Preatoni, Roberta Maselli, Cesare Hassan, Elena Finati, Benedetto Mangiavillano, Alessandro Repici
BACKGROUND AND AIMS: EUS elastography is useful in characterizing solid pancreatic lesions (SPLs), and fractal analysis-based technology has been used to evaluate geometric complexity in oncology. The aim of this study was to evaluate EUS elastography (strain ratio) and fractal analysis for the characterization of SPLs. METHODS: Consecutive patients with SPLs were prospectively enrolled between December 2015 and February 2017. Elastographic evaluation included parenchymal strain ratio (pSR) and wall strain ratio (wSR) and was performed with a new compact US processor...
January 9, 2018: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/29282062/supraspinatus-muscle-elasticity-measured-with-real-time-shear-wave-ultrasound-elastography-correlates-with-mri-spectroscopic-measured-amount-of-fatty-degeneration
#6
Fabian Gilbert, Detlef Klein, Andreas Max Weng, Herbert Köstler, Benedikt Schmitz, Jonas Schmalzl, Dirk Böhm
BACKGROUND: Fatty Degeneration (FD) of the rotator cuff muscles influences functional and anatomical outcome after rotator cuff repair. The MRI based estimation of fatty degeneration is the gold standard. There is some evidence that Ultrasound elastography (EUS) can detect local differences of tissue stiffness in muscles and tendons. Shear-wave elastography (SWE) was evaluated to determine the extent to which shear wave velocity was associated with measures of fatty degeneration. MRI-spectroscopic fat measurement was used as a reference to quantify the amount of fat in the muscle belly...
December 28, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29177634/endoscopic-ultrasound-eus-elastography-and-contrast-enhanced-eus-in-groove-pancreatitis
#7
Surinder Singh Rana, Ravi Sharma, Sonali Guleria, Rajesh Gupta
We report for the first time the findings on endoscopic ultrasound elastrography and contrast enhanced EUS in a patient with groove pancreatitis.
November 27, 2017: Indian Journal of Gastroenterology: Official Journal of the Indian Society of Gastroenterology
https://www.readbyqxmd.com/read/29124123/endoscopic-ultrasound-in-diagnosis-of-solid-pancreatic-lesions-elastography-or-contrast-enhanced-harmonic-alone-versus-the-combination
#8
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/29033431/diagnostic-challenge-in-pancreatic-sarcoidosis-using-endoscopic-ultrasonography
#9
Nobuaki Azemoto, Teru Kumagi, Mitsuhito Koizumi, Taira Kuroda, Hirofumi Yamanishi, Yoshinori Ohno, Yoshiki Imamura, Eiji Takeshita, Yoshiko Soga, Yoshiou Ikeda, Morikazu Onji, Yoichi Hiasa
We herein report a 55-year-old woman who presented with erythema and bilateral hilar lymphadenopathy 4 months prior to the detection of pancreatic lesions on an ultrasound. A skin biopsy showed evidence of sarcoidosis. The largest lesion in the tail of the pancreas was hypoechoic on endoscopic ultrasonography (EUS). The lesion was initially iso-enhanced on contrast enhanced-EUS (CE-EUS) but subsequently became hypoenhanced. The lesion revealed heterogeneous components of both soft and hard tissue on EUS elastography...
January 15, 2018: Internal Medicine
https://www.readbyqxmd.com/read/29032609/usefulness-of-endoscopic-ultrasonography-elastography-as-a-predictive-tool-for-the-occurrence-of-pancreatic-fistula-after-pancreatoduodenectomy
#10
Takamichi Kuwahara, Yoshiki Hirooka, Hiroki Kawashima, Eizaburo Ohno, Yukihiro Yokoyama, Tsutomu Fujii, Shigeo Nakamura, Yasuhiro Kodera, Masato Nagino, Hidemi Goto
BACKGROUND: Pancreatic fistula (PF) is a major complication following pancreatoduodenectomy (PD). Pancreatic texture is a risk factor for PF, but its evaluation depends on the subjective judgment. The aim of this study was to investigate whether preoperative endoscopic ultrasonography-elastography (EUS-EG), which objectively assesses tissue elasticity, predict the development of PF following PD. METHODS: Fifty-nine patients who underwent EUS-EG before PD and had pancreas parenchyma histologically evaluated were included...
December 2017: Journal of Hepato-biliary-pancreatic Sciences
https://www.readbyqxmd.com/read/29031414/the-application-of-ultrasound-elastography-in-the-shoulder
#11
REVIEW
Jonas Schmalzl, Annabel Fenwick, Dirk Boehm, Fabian Gilbert
Ultrasound elastography (EUS) is a recently developed method for the assessment of tissue elasticity by applying mechanical stress and subsequently analyzing tissue displacement with ultrasound. To date, mainly two different techniques are used in clinical practice: strain (compression) EUS and shear wave EUS. However, shear wave EUS has been shown to be more examiner independent and more reliable as this technique allows a quantitative measurement of tissue elasticity. There is increasing evidence that EUS can be used to evaluate mechanical properties of musculoskeletal tissue...
December 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28918798/new-imaging-techniques-endoscopic-ultrasound-guided-elastography
#12
REVIEW
Julio Iglesias-García, Jose Lariño-Noia, Juan Enrique Domínguez-Muñoz
Endoscopic ultrasound (EUS) is a major imaging method in the management of several diseases of the gastrointestinal tract and surrounding structures. Elastography is a novel technique providing additional information to standard B-mode imaging on the tissue stiffness. Elastography can be performed under EUS guidance. This method has proven to be an accurate and additional tool in the evaluation of pancreatic diseases and lymph nodes analysis. Possible uses include the study of liver lesions, subepithelial masses, and many more...
October 2017: Gastrointestinal Endoscopy Clinics of North America
https://www.readbyqxmd.com/read/28836516/autoimmune-pancreatitis-imaging-features
#13
Yi Dong, Mirko D'Onofrio, Michael Hocke, Christian Jenssen, Andrej Potthoff, Nathan Atkinson, Andre Ignee, Christoph F Dietrich
BACKGROUND AND OBJECTIVES: Autoimmune pancreatitis (AIP) remains a difficult disease to diagnose before treatment, particularly if presenting as a focal mass lesion. The purpose of this multicenter retrospective study is to analyze imaging features of histologically confirmed AIP to determine the additional diagnostic value of contrast-enhanced ultrasound (CEUS), contrast-enhanced endoscopic ultrasound (CE-EUS), and elastography to B-mode features. PATIENTS AND METHODS: We report on a retrospective data collection of 60 histologically confirmed cases of AIP in comparison to 16 patients with pancreatic adenocarcinomas (PDAC)...
August 24, 2017: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/28833507/usefulness-of-shear-wave-elastography-as-a-quantitative-diagnosis-of-chronic-pancreatitis
#14
Takamichi Kuwahara, Yoshiki Hirooka, Hiroki Kawashima, Eizaburo Ohno, Takuya Ishikawa, Takeshi Yamamura, Kazuhiro Furukawa, Kohei Funasaka, Masanao Nakamura, Ryoji Miyahara, Osamu Watanabe, Masatoshi Ishigami, Senju Hashimoto, Hidemi Goto
BACKGROUND AND AIM: Chronic pancreatitis (CP) is sometimes diagnosed at the progressed stage. For the early diagnosis of CP, Endoscopic ultrasonography (EUS) may be a useful method, but its diagnostic criteria are based on subjective judgement. Shear wave elastography (SW-EG) using transabdominal ultrasonography, which quantifies tissue elasticity as an absolute value, may be an objective and non-invasive method for the diagnosis of CP. METHODS: Eighty-five patients with known or suspected CP who underwent both EUS and SW-EG from October 2012 to July 2016 were included in this study...
August 17, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28800087/imaging-features-of-non-alcoholic-fatty-liver-disease-in-children-and-adolescents
#15
REVIEW
Michele Di Martino, Kameliya Koryukova, Mario Bezzi, Carlo Catalano
Non-invasive diagnosis and quantification of liver steatosis is important to overcome limits of liver biopsy, in order to follow up patients during their therapy and to establish a reference standard that can be used in clinical trials and longitudinal studies. Imaging offers several methods in this setting: ultrasound, which is the cheapest technique and easy to perform; magnetic resonance spectroscopy (MRS), which reflects the real content of triglycerides in a specific volume; and proton density fat fraction (PDFF) magnetic resonance, which is a simple method that reflects the distribution of the fat in the whole liver...
August 11, 2017: Children
https://www.readbyqxmd.com/read/28721972/ultrasound-imaging-features-of-isolated-pancreatic-tuberculosis
#16
Yi Dong, Christian Jürgensen, Rajesh Puri, Mirko D'Onofrio, Michael Hocke, Wen-Ping Wang, Nathan Atkinson, Malay Sharma, Christoph F Dietrich
BACKGROUND AND OBJECTIVES: Isolated pancreatic tuberculosis (PTB) is extremely rare worldwide. The purpose of this multicenter retrospective study is to analyze imaging features of histologically confirmed isolated PTB in order to determine the diagnostic features of the new methods contrast enhanced ultrasound (CEUS), ultrasound elastography and contrast enhanced endoscopic ultrasound (CE-EUS). PATIENTS AND METHODS: We report on a retrospective data collection of 12 cases of PTB confirmed by histology or cytology...
July 19, 2017: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/28440348/diagnostic-utility-of-endoscopic-ultrasonography-elastography-in-the-evaluation-of-solid-pancreatic-masses-a-meta-analysis-and-systematic-review
#17
REVIEW
Yi Lu, Lu Chen, Chujun Li, Honglei Chen, Jinhua Chen
AIM: The accuracy for endoscopic ultrasonography-elastography (EUS-EG) in the evaluation of solid pancreatic masses varies greatly and the pooled results have not been updated since 2013. Also, there still lack a comprehensive comparison among EUS-EG, contrast-enhanced EUS (CE-EUS), and EUS-guided fine needle aspiration (EUS-FNA).Material and methods: A thorough search was made for diagnostic trials investigating the role of EUS-EG in solid pancreatic masses. Meta-Disc was used to calculate the pooled sensitivity, specificity, diagnostic odds ratio and summary receiver operator characteristics...
April 22, 2017: Medical Ultrasonography
https://www.readbyqxmd.com/read/28415140/imaging-modalities-for-characterising-focal-pancreatic-lesions
#18
REVIEW
Lawrence Mj Best, Vishal Rawji, Stephen P Pereira, Brian R Davidson, Kurinchi Selvan Gurusamy
BACKGROUND: Increasing numbers of incidental pancreatic lesions are being detected each year. Accurate characterisation of pancreatic lesions into benign, precancerous, and cancer masses is crucial in deciding whether to use treatment or surveillance. Distinguishing benign lesions from precancerous and cancerous lesions can prevent patients from undergoing unnecessary major surgery. Despite the importance of accurately classifying pancreatic lesions, there is no clear algorithm for management of focal pancreatic lesions...
April 17, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28344791/differential-diagnosis-of-solid-pancreatic-masses-contrast-enhanced-harmonic-ceh-eus-quantitative-elastography-qe-eus-or-both
#19
Julio Iglesias-Garcia, Björn Lindkvist, Jose Lariño-Noia, Ihab Abdulkader-Nallib, J Enrique Dominguez-Muñoz
BACKGROUND: Contrast-enhanced harmonic endoscopic ultrasound (CEH-EUS) and quantitative-elastography endoscopic ultrasound (QE-EUS) are considered useful tools for the evaluation of solid pancreatic tumors (SPT). The aim of our study was to evaluate the diagnostic accuracy of CEH-EUS, QE-EUS, and the combination of both for the differential diagnosis of SPT. METHODS: Sixty-two consecutive patients (mean age 64.3 years, range 32-89 years, 44 male) who underwent EUS for the evaluation of SPT were prospectively included...
March 2017: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/28218202/contrast-enhanced-endoscopic-ultrasound-and-endoscopic-ultrasound-elastography-in-gastrointestinal-stromal-tumors
#20
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
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