The purpose of this study was to evaluate a new polymer-based and magnetic resonance (MR) imaging-compatible guide wire for its application in MR-guided endovascular interventions, particularly for interventional peripheral MR angiography in swine experiments in vivo. A passive device tracking method tailored to the specific conditions of peripheral MR angiography was developed. Near-real-time visualization of the guide wire was accomplished in vivo in the carotid artery, aorta, heart, and iliac arteries of two domestic pigs. Results show great potential for this guide wire in aiding the realization of interventional peripheral MR angiography in humans.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.jvir.2009.07.001 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Probing the orientation and membrane permeation of rhodamine voltage reporters through molecular simulations and free energy calculations.
J Mater Chem B
January 2025
Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.
Article Synopsis
- The transmembrane potential is crucial for cellular functions like signaling and energy production, with Rhodamine voltage reporters (RhoVRs) serving as small, non-invasive sensors that can detect voltage changes, especially in mitochondria.
- Extensive simulations and free-energy calculations revealed that the orientation of RhoVRs relative to membranes, influenced by their polarized functional groups, significantly impacts their voltage sensitivity and localization within cells.
- The study's findings on the relationship between the chemical structure of RhoVRs and their membrane behavior offer valuable insights for designing fluorescent dyes that better detect voltage changes.
Three-dimensional spiral-shaping method of microcatheter for paraclinoid aneurysms: assessment using silicone models.
Nagoya J Med Sci
November 2024
Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Selecting an appropriate microcatheter tip shape for paraclinoid aneurysms is difficult. Therefore, we devised an original simple and uniform three-dimensional (3D) spiral-shaping method of microcatheter and validated the characteristics and usefulness of this method for coil embolization of paraclinoid aneurysms using patient-specific silicone models. These silicone models were produced based on clinical data from four patients with four paraclinoid aneurysms that underwent endovascular treatment using the 3D spiral-shaping method.
View Article and Find Full Text PDFPhysical Simulation Experiment on the Rock Breaking Efficiency of Pulse Type Controllable Shock Wave.
ACS Omega
December 2024
Shenmu Ningtiaota Mining Company, Shaanxi Coal and Chemical Industry Group, Shenmu, Shaanxi 719300, China.
Given that conducting controllable shock wave tests in actual rock formations underground in coal mines affects coal mine production with the parameters required for equipment design and incurs significant costs, a series of ground tests were conducted separately. First, the impact of energy storage on rock breaking efficiency was analyzed. Then, physical simulation experiments were conducted on the differential efficiency of controllable shock waves on high-strength cement, sandstone, granite, solid granite, and limestone.
View Article and Find Full Text PDFTransjugular transcatheter edge-to-edge mitral valve repair in a patient with functional mitral regurgitation: a case report.
Eur Heart J Case Rep
January 2025
Department of Cardiovascular Medicine, Sendai Kousei Hospital, 1-20 Tsutsumidori-amamiya, Aoba Ward, Sendai, Miyagi 9810914, Japan.
Article Synopsis
- The transcatheter edge-to-edge mitral valve repair (M-TEER) using the MitraClip system is usually done via the transfemoral approach, but the transjugular approach can be a viable alternative when the former isn't possible.
- A 57-year-old man with heart failure and severe functional mitral regurgitation could not undergo the transfemoral approach due to an occluded inferior vena cava, leading to the decision to use the transjugular technique instead.
- The procedure was successful with no complications, significantly reducing the patient's mitral regurgitation, and he showed sustained improvement a year later.
Guided intentional replantation of a mandibular premolar with type IIIIb dens invaginatus associated with peri-invagination periodontitis without root canal treatment- A case report.
J Endod
December 2024
University of Sharjah, College of Dental Medicine, Department of Preventive and Restorative Dentistry, Sharjah, UAE.
Aim: This report highlights successful management of a rare case of a mandibular premolar with Oehler's Type IIIb Dens Invaginatus (DI) and peri-invagination periodontitis with guided intentional replantation (IR) without root canal treatment.
Methods: A 22-year-old female patient reported with discomfort and a sinus tract associated with tooth #21. Clinical examination and cone beam computed tomography revealed tooth #21 had an Oehler's Type IIIb DI with peri-invagination periodontitis.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!