an elevated lesion covered with normal mucosa is observed during endoscopy, the endoscopist would be suspicious of the presence of a mass underneath the mucosa and calls it a subepithelial lesion (SEL). However, SEL may be a true intramural mass underneath the mucosa or an extralumi-nal compression mimicking an intramural mass. For the evaluation of SEL, endoscopic ultrasonography (EUS) is cons...

Background/Study aim The American Society for Gastrointestinal Endoscopy (ASGE) recommends that trainees complete 150 endoscopic ultrasound (EUS) procedures before assessing competency. However, this recommendation is largely based on limited evidence and expert opinion. With new evidence suggesting that this historical threshold is underestimating training requirements, we evaluated the learni...

Endoscopic ultrasonography (EUS) is the most sensitive imaging method for diagnosis of pancreatic tumors. However, it still has limits in the differentiation between pancreatic cancers and inflammatory tumor-like masses. A novel technology, contrast-enhanced harmonic EUS (CH-EUS), has been developed recently. It can visualize both parenchymal perfusion and microvasculature in pancreas without D...

A 50-year-old woman presented with dyspepsia but no history of weight loss or gastrointestinal bleeding. Esophagogastroduodenoscopy (EGD) showed a sessile polypoidal submucosal lesion in the second part of the duodenum close to the ampulla with a central opening (fish-mouth appearance) (▶Fig. 1). The contour of this lesion was smooth and there was no disruption of the surrounding folds, nor ulc...

We study the electronic properties of InAs/EuS/Al heterostructures as explored in a recent experiment [S. Vaitiekenas \emph{et al.}, Nat. Phys. (2020)], combining both spectroscopic results and microscopic device simulations. In particular, we use angle-resolved photoemission spectroscopy to investigate band bending at InAs/EuS interface. The resulting offset value serves an essential input sub...

Techniques for endoscopic ultrasonography (EUS)-guided biliary drainage (EUSBD) have been developed, and EUS-guided antegrade stenting (EUS-AGS) and EUS-guided hepaticogastrostomy (EUSHGS)/hepaticojejunostomy (HJS) are suitable for gastric outlet obstruction (GOO) or surgically altered anatomy. EUS-AGS alone carries the potential risk of causing bile leakage from a fistula; however, EUS-AGS in ...

Endoscopic ultrasound (EUS) elastography is an imaging procedure used for the visualization of tissue elasticity during usual EUS examinations. EUS elastography can be accomplished real-time with state-of-the-art ultrasound systems, with the images being represented in transparent color superimposed on the conventional gray-scale B-mode scans. The aim of this review was to introduce the potenti...

Techniques for endoscopic ultrasonography (EUS)-guided biliary drainage (EUSBD) have been developed, and EUS-guided antegrade stenting (EUS-AGS) and EUS-guided hepaticogastrostomy (EUSHGS)/hepaticojejunostomy (HJS) are suitable for gastric outlet obstruction (GOO) or surgically altered anatomy. EUS-AGS alone carries the potential risk of causing bile leakage from a fistula; however, EUS-AGS in ...

28 29 In the rat, external urethral sphincter (EUS) activation during micturition consists of three 30 sequential phases: 1) an increase in tonic EUS activity during passive filling and active 31 contraction of the bladder (guarding reflex), 2) synchronized phasic activity (EUS bursting) 32 associated with voiding, and 3) sustained tonic EUS activity that persists after bladder 33 contraction. ...

AIMS It is well known that endoscopic ultrasound guided fine needle aspiration (EUS-FNA) has a high sensitivity (over 85%) and specificity (100%) for diagnosis of pancreatic cancer. The aim of the study was to establish a EUS based clinical diagnostic algorithm in patients with pancreatic masses and negative cytopathology after EUS-FNA, based on previously published results and cut-offs of real...