Results 91 to 100 of about 90,419 (215)

Improving Catheter Segmentation & Localization in 3D Cardiac Ultrasound Using Direction-Fused FCN [PDF]

open access: yesarXiv, 2019
Fast and accurate catheter detection in cardiac catheterization using harmless 3D ultrasound (US) can improve the efficiency and outcome of the intervention. However, the low image quality of US requires extra training for sonographers to localize the catheter.
arxiv  

In-Vitro MPI-Guided IVOCT Catheter Tracking in Real Time for Motion Artifact Compensation [PDF]

open access: yes, 2019
Purpose: Using 4D magnetic particle imaging (MPI), intravascular optical coherence tomography (IVOCT) catheters are tracked in real time in order to compensate for image artifacts related to relative motion. Our approach demonstrates the feasibility for bimodal IVOCT and MPI in-vitro experiments. Material and Methods: During IVOCT imaging of a stenosis
arxiv   +1 more source

Improved passive catheter tracking with positive contrast for CMR-guided cardiac catheterization using partial saturation (pSAT)

open access: yesJournal of Cardiovascular Magnetic Resonance, 2017
Background Cardiac catheterization is a common procedure in patients with congenital heart disease (CHD). Although cardiovascular magnetic resonance imaging (CMR) represents a promising alternative approach to fluoroscopy guidance, simultaneous high ...
Mari Nieves Velasco Forte   +12 more
doaj   +1 more source

Double-balloon catheter for induction of labor in 362 women with and without prior cesarean section

open access: yesEuropean Journal of Obstetrics & Gynecology and Reproductive Biology: X, 2019
Objective: Balloon catheter is the preferred method for induction of labor in women with prior cesarean section. We sought to evaluate the rate of vaginal delivery, induction-delivery time and outcome predictors after induction with double-balloon ...
Anne B. Boisen   +2 more
doaj  

Responses to stimulation of coronary and carotid baroreceptors and the coronary chemoreflex at different ventricular distending pressures in anaesthetised dogs [PDF]

open access: yes, 2001
Stimulation of left ventricular mechanoreceptors was believed not only to exert important effects on the circulation, but also to influence the responses to baroreceptor reflexes.
Drinkhill, M.J.   +2 more
core   +1 more source

GuideLiner Balloon Assisted Tracking (GBAT): A New Addition to the Interventional Toolbox

open access: yesCase Reports in Cardiology, 2016
The use of guide extension catheters, such as GuideLiner, allows for increased guide support and facilitates device delivery in tortuous vessels. In cases which the GuideLiner catheter cannot be advanced even with balloon anchoring technique, we inflate ...
Basem Elbarouni   +5 more
doaj   +1 more source

MR-guided percutaneous angioplasty: Assessment of tracking safety, catheter handling and functionality [PDF]

open access: yes, 2018
Purpose: Magnetic resonance (MR)-guided percutaneous vascular interventions have evolved to a practical possibility with the advent of open-configuration MR systems and real-time tracking techniques. The purpose of this study was to assess an MR-tracking
Debatin, Jörg   +5 more
core  

Macromolecular approaches to prevent thrombosis and intimal hyperplasia following percutaneous coronary intervention. [PDF]

open access: yes, 2014
Cardiovascular disease remains one of the largest contributors to death worldwide. Improvements in cardiovascular technology leading to the current generation of drug-eluting stents, bioresorbable stents, and drug-eluting balloons, coupled with advances ...
Panitch, Alyssa, Scott, Rebecca A
core   +2 more sources

Percutaneous stone removal using cobra-shaped sheath and cholangioscopy for multiple hepatolithiasis with choledochoduodenal anastomotic stenosis

open access: yesRadiology Case Reports, 2022
Management of multiple hepatolithiasis with choledochoenteral anastomotic stenosis remains difficult and time-consuming. We report a case of a 77-year-old man with severe right hypochondoralgia, treated with percutaneous transhepatic balloon dilatation ...
Fumio Chikamori, MD   +5 more
doaj  

3D/2D Registration of Mapping Catheter Images for Arrhythmia Interventional Assistance [PDF]

open access: yesP. Fallavollita, " 3D/2D Registration of Mapping Catheter Images for Arrhythmia Interventional Assistance", International Journal of Computer Science Issues, IJCSI, Volume 4, Issue 2, pp10-19, September 2009", 2009
Radiofrequency (RF) catheter ablation has transformed treatment for tachyarrhythmias and has become first-line therapy for some tachycardias. The precise localization of the arrhythmogenic site and the positioning of the RF catheter over that site are problematic: they can impair the efficiency of the procedure and are time consuming (several hours ...
arxiv  

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