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The circular-shaped PulseSelect™ PFA catheter has demonstrated comparable efficacy to traditional thermal catheter ablation in achieving pulmonary vein isolation (PVI), while preventing thermally mediated complications. However, this catheter does not have any objective parameters to confirm real-time tissue-catheter contact. We report a case in which PVI was achieved through PFA using optimal biplane fluoroscopic angulations which were more useful for accurately assessing and adjusting the position and rotation of the circular catheter electrodes than the conventional fluoroscopic angulations.
View Article and Find Full Text PDFA Precessing-Coin-like Rotary Actuator for Distal Endoscope Scanners: Proof-of-Concept Study.
Micromachines (Basel)
January 2025
Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, BC V6T 1Z4, Canada.
This paper presents, for the first time, a rotary actuator functionalized by an inclined disc rotor that serves as a distal optical scanner for endoscopic probes, enabling side-viewing endoscopy in luminal organs using different imaging/analytic modalities such as optical coherence tomography and Raman spectroscopy. This scanner uses a magnetic rotor designed to have a mirror surface on its backside, being electromagnetically driven to roll around the cone-shaped hollow base to create a motion just like a precessing coin. An optical probing beam directed from the probe's optic fiber is passed through the hollow cone to be incident and bent on the back mirror of the rotating inclined rotor, circulating the probing beam around the scanner for full 360° sideway imaging.
View Article and Find Full Text PDFIs digital-green synergy the future of carbon emission performance?
J Environ Manage
January 2025
School of Economics and Management, China University of Geosciences, Wuhan, 430078, China. Electronic address:
Amid the new industrial revolution, digital technology and green finance play pivotal roles in shifting towards a low-carbon economy. This paper establishes a coherent research framework by integrating digital technology, green financing, and carbon emission performance. Utilizing a multifaceted dataset that combines provincial panel data with corporate listings databases, this study evaluates the development of green finance using a hybrid weighing methodology that merges the analytical hierarchy process (AHP) with the spatial-temporal entropy weight method.
View Article and Find Full Text PDFBackground: Medical student exposure to role-modeling of high-value care (HVC) behaviors may shape professional identity formation and future HVC practices.
Objective: To investigate the frequency and characteristics of HVC role-modeling witnessed by medical students during core clinical rotations.
Design: Cross-sectional survey study.
Background: The purpose of this study was to assess impingement-free internal rotation (IR) in a virtual reverse shoulder arthroplasty simulation using a Statistical Shape Model based on scapula size.
Methods: A database of over 10,000 scapulae utilized for preoperative planning for shoulder arthroplasty was analyzed with a Statistical Shape Model to obtain 5 scapula sizes including the mean and 2 standard deviations. For each scapula model, one glenosphere size (33-42 mm) was selected as the best fit based on consensus among 3 shoulder surgeons.
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