Results 11 to 20 of about 1,351 (123)
Electroelastic metasurface with resonant piezoelectric shunts for tunable wavefront control [PDF]
, 2022 This study presents a tunable phase-modulated metasurface composed of periodically distributed piezoelectric patches with resonant-type shunt circuits. The fully coupled electromechanical model is established to study the transmission characteristics of the metasurface unit and validated through numerical and experimental studies. Based on the analysis
arxiv +1 more source
Characterization of a Superconducting Microstrip Single-Photon Detector Shunted with an External Resistor [PDF]
, 2023 A superconducting microstrip single-photon detector (SMSPD) generally requires a shunt resistor to avoid latching, caused by its high current-carrying capacity and low kinetic inductance. Here, the effect of the shunt resistor on the behaviors of microbridge SMSPDs was investigated.
arxiv +1 more source
Arquivos de Gastroenterologia, 2001 Diversas alternativas terapêuticas têm sido usadas, atualmente, na tentativa de reduzir a mortalidade de pacientes com hipertensão portal que desenvolvem varizes esofagianas.
Gerson CARREIRO +4 more
doaj +1 more source
British Journal of Surgery, 2017 Abstract Background Transjugular intrahepatic portasystemic stent shunt (TIPSS), instead of surgical shunt, has become the standard treatment for patients with complicated portal hypertension. This study compared outcomes in patients who underwent TIPSS or surgical shunting for complicated portal ...
Marc-Antoine Allard +10 more
openaire +3 more sources
Gut and Liver, 2018 Background/Aims Gastric varices (GVs) are a major cause of upper gastrointestinal bleeding in patients with liver cirrhosis. The current treatments of choice are balloon-occluded retrograde transvenous obliteration (BRTO) and the placement of a ...
Geunwu Gimm +8 more
doaj +1 more source
Gastrointestinal Intervention, 2018 Background: To evaluate the safety and efficacy of transjugular intrahepatic portosystemic shunt (TIPS) creation for the management of portal hypertension in patients with hepatocellular carcinoma (HCC). Methods: A literature search of the MEDLINE/PubMed
He Zhao +5 more
doaj +1 more source
AI-based Agents for Automated Robotic Endovascular Guidewire Manipulation [PDF]
arXiv, 2023 Endovascular guidewire manipulation is essential for minimally-invasive clinical applications (Percutaneous Coronary Intervention (PCI), Mechanical thrombectomy techniques for acute ischemic stroke (AIS), or Transjugular intrahepatic portosystemic shunt (TIPS)).
arxiv
Transjugular intrahepatic portasystemic stent shunting for control of acute and recurrent upper gastrointestinal haemorrhage related to portal hypertension. [PDF]
Gut, 1993 The insertion of a transjugular intrahepatic portasystemic stent shunt (TIPSS) was evaluated in 22 patients with recurrent upper gastrointestinal haemorrhage related to portal hypertension (bleeding from oesophageal varices 10, gastric varices six, portal hypertensive gastropathy six).
P. C. Hayes +5 more
openaire +3 more sources
Research on Train Shunting Impedance Based on Transmission Line Theory [PDF]
arXiv, 2023 At present, the shunting process of train to track circuit is usually studied by taking the shunting resistance of the first wheel set of train as the equivalent model, which ignores the shunting effect of other wheel sets and cannot study the fault conditions such as "pool shunting".
arxiv
Towards Simultaneous Segmentation of Liver Tumors and Intrahepatic Vessels via Cross-attention Mechanism [PDF]
arXiv, 2023 Accurate visualization of liver tumors and their surrounding blood vessels is essential for noninvasive diagnosis and prognosis prediction of tumors. In medical image segmentation, there is still a lack of in-depth research on the simultaneous segmentation of liver tumors and peritumoral blood vessels. To this end, we collect the first liver tumor, and
arxiv