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https://www.readbyqxmd.com/read/28218202/contrast-enhanced-endoscopic-ultrasound-and-endoscopic-ultrasound-elastography-in-gastrointestinal-stromal-tumors
#1
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/28218199/contrast-harmonic-endoscopic-ultrasound-instrumentation-echoprocessors-and-echoendoscopes
#2
REVIEW
Julio Iglesias-Garcia, Jose Lariño-Noia, J Enrique Domínguez-Muñoz
Endoscopic ultrasound (EUS) has become as one the best diagnostic and therapeutic methods for the management of several intraintestinal and extraintestinal diseases, among them to highlight pancreaticobiliary indications, mediastinal evaluation, and the analysis of gastrointestinal lesions. Over the years, there has been an enormous evolution in the systems available to perform EUS. Newer processors and echoendoscopes are available nowadays, with the ability to perform new imaging analysis, such as elastography and contrast enhancement...
January 2017: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/28218194/role-of-contrast-enhanced-endoscopic-ultrasound-in-lymph-nodes
#3
REVIEW
Michael Hocke, Andre Ignee, Christoph Dietrich
Diagnosing unclear lymph node (LN) enlargements in the mediastinum and abdomen is the most important indication of endoscopic ultrasound (EUS)-fine needle aspiration (FNA) after the diagnosis and treatment of pancreatic diseases. Investigating LNs in these areas can happen in different clinical settings. Mostly, it is the first modality in general LN diseases without any peripheral LN enlargements. On the other hand, it can be the question of LN involvement in a known or suspected primary tumor. Due to EUS-FNA cytology, those questions can be answered highly, accurately...
January 2017: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/28104978/maximizing-the-endosonography-the-role-of-contrast-harmonics-elastography-and-confocal-endomicroscopy
#4
REVIEW
Andrada Seicean, Ofelia Mosteanu, Radu Seicean
New technologies in endoscopic ultrasound (EUS) evaluation have been developed because of the need to improve the EUS and EUS-fine needle aspiration (EUS-FNA) diagnostic rate. This paper reviews the principle, indications, main literature results, limitations and future expectations for each of the methods presented. Contrast-enhanced harmonic EUS uses a low mechanical index and highlights slow-flow vascularization. This technique is useful for differentiating solid and cystic pancreatic lesions and assessing biliary neoplasms, submucosal neoplasms and lymph nodes...
January 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28100996/intrapancreatic-accessory-spleen-a-diagnosis-not-to-forget
#5
Susana Marques, Miguel Bispo, Lariño Noia
A 69-year-old male patient was incidentally diagnosed with a 5-mm lesion in the pancreatic tail by endoscopic ultrasound (EUS). After contrast-enhanced EUS and EUS-elastography, all imaging features were highly suggestive of a benign pancreatic solid lesion such as an intrapancreatic accessory spleen (IPAS) or a benign neuroendocrine tumor. Interposition of the splenic artery precluded EUS-guided fine-needle aspiration (FNA). When an asymptomatic pancreatic mass is detected, IPAS diagnosis should be considered, and, if EUS-FNA is infeasible, contrast-enhanced EUS and EUS-elastography are useful tools to differentiate a pancreatic benign lesion as IPAS from a malignancy, with avoidance of unnecessary surgery...
September 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/27995327/quantitative-diagnosis-of-chronic-pancreatitis-using-eus-elastography
#6
Takamichi Kuwahara, Yoshiki Hirooka, Hiroki Kawashima, Eizaburo Ohno, Takuya Ishikawa, Manabu Kawai, Hiroki Suhara, Tomoaki Takeyama, Kiyotaka Hashizume, Toshinari Koya, Hiroyuki Tanaka, Daisuke Sakai, Takeshi Yamamura, Kazuhiro Furukawa, Kohei Funasaka, Masanao Nakamura, Ryoji Miyahara, Osamu Watanabe, Masatoshi Ishigami, Senju Hashimoto, Hidemi Goto
BACKGROUND: It is difficult to diagnose chronic pancreatitis (CP) objectively because of a lack of standard diagnostic criteria. Endoscopic ultrasonography (EUS) has been used to assess the severity of CP, but the diagnosis of CP using EUS depends on an endosnonographer. The aim of this study was to establish an objective diagnostic method for CP using EUS elastography (EUS-EG). METHODS: A retrospective study was designed and 96 patients underwent EUS-EG for follow-up of known CP, or who were clinically suspected as having CP...
December 19, 2016: Journal of Gastroenterology
https://www.readbyqxmd.com/read/27917087/predicting-pancreatic-exocrine-insufficiency-with-eus-elastography
#7
J Enrique Domínguez-Muñoz
No abstract text is available yet for this article.
August 2016: Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/27888869/latest-advances-in-chronic-pancreatitis
#8
J Enrique Domínguez-Muñoz
This article summarizes some of the recent and clinically relevant advances in chronic pancreatitis. These advances mainly concern the definition of the disease, the etiological diagnosis of idiopathic disease, the correlation between fibrosis degree and pancreatic secretion in the early stages of chronic pancreatitis, the treatment of the disease and of pain, the clinical relevance of pancreatic exocrine insufficiency, and the diagnosis of autoimmune pancreatitis. A new mechanistic definition of chronic pancreatitis has been proposed...
September 2016: Gastroenterología y Hepatología
https://www.readbyqxmd.com/read/27866871/endoscopic-ultrasound-of-pancreatic-tumors
#9
M Wangermez
Computed tomography (CT) and endoscopic ultrasound (EUS) are the two most effective techniques for the assessment of pancreatic cancers. CT has revolutionized the field of tumor imaging in pancreatic cancer and is now a well-established imaging technique for diagnosis and staging. However, EUS still plays an important role in several situations, especially when the diagnosis is uncertain or when histopathological confirmation of the lesion is needed. Similarly, regarding cystic lesions, magnetic resonance imaging and CT have very good performances but are often inadequate because the diagnosis can be difficult to establish, while the consequences for the patient are major...
December 2016: Diagnostic and Interventional Imaging
https://www.readbyqxmd.com/read/27862278/diagnostic-efficacy-of-quantitative-endoscopic-ultrasound-elastography-for-differentiating-pancreatic-disease
#10
Su Young Kim, Jae Hee Cho, Yoon Jae Kim, Eui Joo Kim, Ji Young Park, Tae Joo Jeon, Yeon Suk Kim
BACKGROUND AND AIM: Endoscopic ultrasound elastography (EUS-EG) constitutes a novel imaging procedure that allows for the quantification of tissue stiffness with high degrees of accuracy in pancreatic disease. However, the optimal cutoff and reference strain ratio (SR) value of quantitative EUS-EG for differential diagnosis in patients with pancreatic disease remains unclear. This study aimed to clarify these values of normal pancreas, chronic pancreatitis, or pancreatic cancer in an Asian population...
November 11, 2016: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/27853750/endoscopic-ultrasound-in-the-diagnosis-of-acinar-cell-carcinoma-of-the-pancreas-contrast-enhanced-endoscopic-ultrasound-endoscopic-ultrasound-elastography-and-pathological-correlation
#11
Tanyaporn Chantarojanasiri, Yoshiki Hirooka, Hiroki Kawashima, Eizaburo Ohno, Takeshi Yamamura, Kohei Funasaka, Masanao Nakamura, Ryoji Miyahara, Masatoshi Ishigami, Osamu Watanabe, Masato Nakaguro, Yoshie Shimoyama, Shigeo Nakamura, Hidemi Goto
We report a case series of five patients with pancreatic acinar cell carcinoma who received surgical treatment and compared the preoperative contrast-enhanced endoscopic ultrasound (EUS) and EUS elastography patterns with the surgical specimens. The contrast-enhanced EUS indicated vascular tumors with gradual enhancement in four patients and a hypovascular tumor in one patient. The elastography indicated an elastic score of 3 (hard lesion with softer border) in two patients and a score of 5 (hard lesion, which included the surrounding area) in two patients...
November 2016: Endoscopy International Open
https://www.readbyqxmd.com/read/27459032/usefulness-of-percutaneous-elastography-by-acoustic-radiation-force-impulse-for-the-non-invasive-diagnosis-of-chronic-pancreatitis
#12
Camilo Julio Llamoza-Torres, Maria Fuentes-Pardo, Francisco Javier Álvarez-Higueras, Fernando Alberca-de-Las-Parras, Fernando Carballo-Álvarez
OBJECTIVE: To determine the accuracy of the acoustic radiation force impulse (ARFI) technique for the diagnosis of chronic pancreatitis. MATERIALS AND METHODS: We present an observational, single-center study that included patients with suspected chronic pancreatitis in the period between October 2012 and September 2015 who underwent endoscopic ultrasound (EUS) and were classified according to the standard and Rosemont criteria. The same group of patients was assessed by the ARFI technology using ACUSON S2000™ equipment with Virtual Touch™ Quantification software for the assessment of pancreatic stiffness by obtaining the shear wave velocity (SWV) in the head, body and tail of the pancreas...
August 2016: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/27429608/assessment-for-diagnosis-of-lymph-node-metastasis-in-esophageal-cancer-using-endoscopic-ultrasound-elastography
#13
Tetsutaro Sazuka, Takashi Akai, Masaya Uesato, Daisuke Horibe, Mari Kuboshima, Hiroyuki Kitabayashi, Akinao Matsunaga, Akiko Kagaya, Yorihiko Muto, Nobuyoshi Takeshita, Tetsuro Maruyama, Yukimasa Miyazawa, Kiyohiko Shuto, Toru Shiratori, Tsuguaki Kono, Yasunori Akutsu, Isamu Hoshino, Hisahiro Matsubara
BACKGROUND: We performed endoscopic ultrasound real-time tissue elastography to more accurately diagnose lymph node metastasis of esophageal cancer. The aim of this study was to evaluate the ability of EUS elastography to distinguish benign from malignant lymph nodes in esophageal cancer patients. METHODS: The present study had two steps. As the first step (study 1), we developed diagnostic criteria for metastatic lymph nodes using elastography and verified the validity of the criteria...
2016: Esophagus: Official Journal of the Japan Esophageal Society
https://www.readbyqxmd.com/read/27386480/thymic-carcinoma-diagnosed-by-using-endoscopic-ultrasound-with-fine-needle-aspiration
#14
Pragnesh Patel, Julie Guider, Erik Rahimi, Sushovan Guha, Songlin Zhang, Nirav Thosani
There is a paucity of literature on the use of endoscopic ultrasound (EUS) for evaluating superior mediastinal structures, especially the thymus gland. We report a case of thymic carcinoma diagnosed by using EUS elastography with strain ratio and fine-needle aspiration (FNA). A 64-year-old woman presented with altered mental status and was diagnosed with autoimmune encephalitis. Further work-up suggested a superior mediastinal mass, for which she underwent EUS. A hypoechoic mass was found in the superior mediastinum at the level of the aortic arch...
May 2016: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/27366039/is-pancreatic-exocrine-insufficiency-in-celiac-disease-related-to-structural-alterations-in-pancreatic-parenchyma
#15
Surinder S Rana, Arvind Dambalkar, Puneet Chhabra, Ravi Sharma, Ritambhra Nada, Vishal Sharma, Satyavati Rana, Deepak K Bhasin
BACKGROUND: Although exocrine pancreatic insufficiency (EPI) has been reported in a number of patients with celiac disease (CD), it is not clear if this is primarily a functional or a structural defect. We studied pancreatic structural abnormalities by endoscopic ultrasound (EUS) in adult CD patients with EPI. METHODS: Pancreatic exocrine function was prospectively assessed in 36 recently diagnosed CD patients (mean age: 29.8 years) by measuring fecal elastase. Pancreatic structural changes were assessed in CD patients with EPI by EUS and elastography...
July 2016: Annals of Gastroenterology: Quarterly Publication of the Hellenic Society of Gastroenterology
https://www.readbyqxmd.com/read/27279926/use-of-ultrasound-elastography-in-the-assessment-of-the-musculoskeletal-system
#16
REVIEW
Łukasz Paluch, Ewa Nawrocka-Laskus, Janusz Wieczorek, Bartosz Mruk, Małgorzata Frel, Jerzy Walecki
This article presents possible applications of ultrasound elastography in musculoskeletal imaging based on the available literature, as well as the possibility of extending indications for the use of elastography in the future. Ultrasound elastography (EUS) is a new method that shows structural changes in tissues following application of physical stress. Elastography techniques have been widely used to assess muscles and tendons in vitro since the early parts of the twentieth century. Only recently with the advent of new technology and creation of highly specialized ultrasound devices, has elastography gained widespread use in numerous applications...
2016: Polish Journal of Radiology
https://www.readbyqxmd.com/read/27214660/new-endoscopic-ultrasonography-techniques-for-pancreaticobiliary-diseases
#17
REVIEW
Ken Kamata, Masayuki Kitano, Shunsuke Omoto, Kumpei Kadosaka, Takeshi Miyata, Kosuke Minaga, Kentaro Yamao, Hajime Imai, Masatoshi Kudo
Endoscopic ultrasonography (EUS) is widely used to evaluate pancreaticobiliary diseases, especially pancreatic masses. EUS has a good ability to detect pancreatic masses, but it is not sufficient for the differential diagnosis of various types of lesions. In order to address the limitations of EUS, new techniques have been developed to improve the characterization of the lesions detected by EUS. EUS-guided fine needle aspiration (EUS-FNA) has been used for diagnosing pancreatic tumors. In order to improve the histological diagnostic yield, a EUS-FNA needle with a core trap has recently been developed...
July 2016: Ultrasonography
https://www.readbyqxmd.com/read/27211845/strain-sonoelastographic-evaluation-of-biceps-muscle-intrinsic-stiffness-after-botulinum-toxin-a-injection
#18
Ayhan Aşkın, Özlem Tuğçe Kalaycı, Korhan Barış Bayram, Aliye Tosun, Ümit Seçil Demirdal, Emel Atar, Mehmet Fatih İnci
BACKGROUND: The most commonly used clinical tools for measuring spasticity are modified Ashworth scale (MAS) and Tardieu scale but both yield subjective rather than objective results. Ultrasound elastography (EUS) provides information on tissue stiffness and allows the qualitative or quantitative measurements of the mechanical properties of tissues. OBJECTIVE: To assess the stiffness of biceps brachialis muscles in stroke patients by strain EUS and to investigate the sonoelastographic changes and its correlations with clinical evaluation parameters after botulinum toxin-A (BTA) injections...
May 23, 2016: Topics in Stroke Rehabilitation
https://www.readbyqxmd.com/read/27186921/contrast-enhancement-and-elastography-in-endoscopic-ultrasound-an-update-of-clinical-applications-in-pancreatic-diseases
#19
REVIEW
Marta Serrani, Andrea Lisotti, Giancarlo Caletti, Pietro Fusaroli
It is well established that endoscopic ultrasound (EUS) is fundamental in the characterization of many diseases concerning different organs, i.e. pancreaticobiliary diseases, gastrointestinal pathologic conditions, and lymph nodes of unknown origin. It is also well known that many factors can hamper the accuracy of EUS, i.e. biliary stents, chronic pancreatitis, poor operator's expertise. These factors can also lead to suboptimal accuracy when cytological confirmation through EUS-fine needle aspiration (EUS-FNA) is indicated...
August 2016: Minerva Medica
https://www.readbyqxmd.com/read/27169628/a-case-of-thrombus-of-the-descending-aorta-successfully-diagnosed-on-preoperative-endoscopic-ultrasonography
#20
Tomohisa Iwai, Mitsuhiro Kida, Toru Kaneko, Hiroshi Yamauchi, Kosuke Okuwaki, Shiro Miyazawa, Hiroshi Imaizumi, Wasaburo Koizumi
A 45-year-old woman presented with left lower abdominal pain. A plain CT scan showed a slightly high-density, cord-like structure extending from the level of the diaphragm of the descending aorta to the superior mesenteric artery. Transgastric endoscopic ultrasonography (EUS) revealed a floating mass, smoothly attaching to the aortic intima and depicted as a hyperechoic region containing a mixture of hyperechoic and hypoechoic areas. EUS elastography revealed that the body of the mass consisted of medium soft tissue, with hard tissue at its base...
July 2016: Journal of Medical Ultrasonics
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