Results 111 to 120 of about 323,689 (331)

Comparative evaluation of instrument segmentation and tracking methods in minimally invasive surgery [PDF]

open access: yes, 2018
Intraoperative segmentation and tracking of minimally invasive instruments is a prerequisite for computer- and robotic-assisted surgery. Since additional hardware like tracking systems or the robot encoders are cumbersome and lack accuracy, surgical ...
Agustinos, Anthony   +19 more
core   +1 more source

An Energy Focusing Flexible and Lightweight Acoustic Metamaterial for Enhanced Ultrasound Power Transfer

open access: yesAdvanced Materials, EarlyView.
A flexible and lightweight acoustic metamaterial composed of air cavities encased in polydimethylsiloxane (PDMS) is introduced to enhance ultrasound power transfer. The metamaterial leverages the strong reflectivity of air cavity boundaries to concentrate incoming ultrasound, thereby improving the performance of piezoelectric energy harvesters ...
Hyung‐Suk Kwon   +4 more
wiley   +1 more source

(Video Assisted) thoracoscopic surgery: Getting started

open access: yesJournal of Minimal Access Surgery, 2007
Thoracoscopic surgery without or with video assistance (VATS) is simpler and easier to learn as it seems to be. Potential benefits of the procedure in rural surgical environment are outlined while basic requirements and limitations are listed ...
Molnar Tamas
doaj  

Pleuroscopy or video-assisted thoracoscopic surgery for exudative pleural effusion: a comparative overview.

open access: yesJournal of Thoracic Disease, 2019
Exudative pleural effusions, such as malignant and tuberculous pleural effusions, are associated with notable morbidity and mortality. Unfortunately, a significant number of these effusions will remain undiagnosed despite thoracentesis.
M. Ali, R. Light, F. Maldonado
semanticscholar   +1 more source

Deployable 3D‐Printed Vascular Stent with Surface‐Catalysed Endogenous Nitric Oxide Generation

open access: yesAdvanced Materials, EarlyView.
A deployable 3D‐printed vascular stent was fabricated with surface‐catalyzed endogenous nitric oxide generation, representing a promising new direction for stent development. The stent can be remotely controlled by magnetic force in its compressed state and fully deployed at the target site using an untethered heat source, potentially eliminating the ...
Kun Zhou   +8 more
wiley   +1 more source

Video assisted thoracic surgery in children

open access: yesJournal of Minimal Access Surgery, 2007
Thoracoscopic surgery, i.e., video assisted thoracic surgery (VATS) has been in use in children for last 98 years. Its use initially was restricted to the diagnostic purposes.
Shah Rasik, Reddy A, Dhende Nitin
doaj  

Laparoscopic Assisted Fusion of the Lumbosacral Spine: A Biomechanical and Histologic Analysis of the Open Versus Laparoscopic Technique in an Animal Model [PDF]

open access: yes, 1997
Study Design. An animal model for laparoscopic lumbosacral fusion. Objectives. To compare the biomechanical and histologic results of open to laparoscopic lumbosacral discectomy and fusion in an animal model. Background Data.
Cahn, Nguyen   +6 more
core   +1 more source

Concurrent Segmentation and Localization for Tracking of Surgical Instruments

open access: yes, 2017
Real-time instrument tracking is a crucial requirement for various computer-assisted interventions. In order to overcome problems such as specular reflections and motion blur, we propose a novel method that takes advantage of the interdependency between ...
D Bouget   +10 more
core   +1 more source

Non-intubated spontaneous ventilation in video-assisted thoracoscopic surgery: a meta-analysis.

open access: yesEuropean Journal of Cardio-Thoracic Surgery, 2019
It remains unclear whether non-intubated video-assisted thoracoscopic surgery (VATS) is comparable or advantageous compared with conventional intubated VATS.
Y. Wen   +7 more
semanticscholar   +1 more source

AI–Guided 4D Printing of Carnivorous Plants–Inspired Microneedles for Accelerated Wound Healing

open access: yesAdvanced Materials, EarlyView.
This work presents an artificial intelligence (AI)‐guided 4D‐printed microneedle platform inspired by carnivorous plants for wound healing. A thermo‐responsive shape memory polymer enables body temperature–triggered self‐coiling for autonomous wound closure.
Hyun Lee   +21 more
wiley   +1 more source

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