Results 91 to 100 of about 681,445 (387)

Deep Reinforcement Learning in Surgical Robotics: Enhancing the Automation Level [PDF]

arXiv, 2023
Surgical robotics is a rapidly evolving field that is transforming the landscape of surgeries. Surgical robots have been shown to enhance precision, minimize invasiveness, and alleviate surgeon fatigue. One promising area of research in surgical robotics is the use of reinforcement learning to enhance the automation level.
arxiv  

Catheter Replacement of the Needle in Percutaneous Arteriography

Acta radiologica. Supplementum, 1953
The catheter method of angiography has become more popular in the past few years, as it provides the following advantages over the method of injecting the contrast medium by means of a simple needle: 1.
S. I. Seldinger
semanticscholar   +1 more source

A Body Conformal Ultrasound Receiver for Efficient and Stable Wireless Power Transfer in Deep Percutaneous Charging

Advanced Materials, EarlyView.
Implantable devices rely on batteries that demand surgical replacement, posing risks, and financial burdens. Ultrasound energy transfer (US‐ET) offers a revolutionary wireless alternative but struggles with efficiency. The presented dielectric‐ferroelectric‐boosted US‐TENG (US‐TENGDF‐B) is thin, flexible, and biocompatible that provides high‐efficiency
Iman M. Imani, Hyun Soo Kim, Minhyuk Lee, Seung‐Bum Kim, So‐Min Song, Dong‐Gyu Lee, Joon‐Ha Hwang, Jeyeon Lee, In‐Yong Suh, Sang‐Woo Kim, Jun Chen, Heemin Kang, Donghee Son, Jeong Min Baik, Sunghoon Hur, Hyun‐Cheol Song   +15 more
wiley   +1 more source

An open-source tool for automated planning of overlapping ablation zones for percutaneous renal tumor treatment [PDF]

arXiv, 2019
Percutaneous thermal ablation is a minimally-invasive treatment option for renal cancer. To treat larger tumours, multiple overlapping ablations zones are required. Arrangements with a low number of ablation zones but coverage of the whole tumour volume are challenging to find for physicians.
arxiv  

Bevel-Tip Needle Deflection Modeling, Simulation, and Validation in Multi-Layer Tissues [PDF]

arXiv, 2023
Percutaneous needle insertions are commonly performed for diagnostic and therapeutic purposes as an effective alternative to more invasive surgical procedures. However, the outcome of needle-based approaches relies heavily on the accuracy of needle placement, which remains a challenge even with robot assistance and medical imaging guidance due to ...
arxiv  

Percutaneous tricuspid valve therapies: the new frontier

European Heart Journal, 2016
Moderate-to-severe tricuspid regurgitation (TR) affects ∼1.6 million patients in the USA, of whom only 8000 undergo tricuspid surgery annually; this results in an extremely large number of untreated patients with significant TR.
M. Taramasso, A. Pozzoli, A. Guidotti, F. Nietlispach, D. Inderbitzin, S. Benussi, O. Alfieri, F. Maisano   +7 more
semanticscholar   +1 more source

Materials Advances in Devices for Heart Disease Interventions

Advanced Materials, EarlyView.
This review examines the crucial role of materials in heart disease interventions, focusing on strategies for monitoring, managing, and repairing heart conditions. It discusses the material requirements for medical devices, highlighting recent innovations and their impact on cardiovascular health.
Gagan K. Jalandhra, Lauryn Srethbhakdi, James Davies, Chi Cong Nguyen, Phuoc Thien Phan, Zachary Och, Aditya Ashok, Khoon S. Lim, Hoang‐Phuong Phan, Thanh Nho Do, Nigel H. Lovell, Jelena Rnjak‐Kovacina   +11 more
wiley   +1 more source

Percutaneous Radiofrequency Ablation of Small Renal Tumors Using CT-Guidance A Review and its Current Role

Urology Journal, 2012
Purpose: To provide key evidence-based strategies to improve outcomes of radiofrequency ablation and limit recurrences of small renal tumors.Materials and Methods: The literature was searched via OvidSP MEDLINE from 1997 to current using MeSH terms.
Maurice Anidjar1, Wassim Kassouf, Frank Bladou, Philip Vladica, Manish I Patel, Richard L Haddad   +5 more
doaj  

Computer-aided hepatic tumour ablation [PDF]

Lecture notes in computer science (LNCS) 2208 (2001) 1145-1146, 2006
Surgical resection of hepatic tumours is not always possible. Alternative techniques consist in locally using chemical or physical agents to destroy the tumour and this may be performed percutaneously. It requires a precise localisation of the tumour placement during ablation.
arxiv  

Controlling the Error on Target Motion through Real-time Mesh Adaptation: Applications to Deep Brain Stimulation [PDF]

, 2017
We present an error-controlled mesh refinement procedure for needle insertion simulation and apply it to the simulation of electrode implantation for deep brain stimulation, including brain shift. Our approach enables to control the error in the computation of the displacement and stress fields around the needle tip and needle shaft by suitably ...
arxiv   +1 more source