Results 111 to 120 of about 125,745 (387)

Bubble Cloud Characteristics and Ablation Efficiency in Dual-Frequency Intrinsic Threshold Histotripsy [PDF]

arXiv, 2023
Histotripsy is a non-thermal focused ultrasound ablation method that destroys tissue through the generation and activity of acoustic cavitation. Intrinsic threshold histotripsy generates bubble clouds when the dominant negative pressure phase of a single-cycle pulse exceeds an intrinsic threshold of ~25-30 MPa. The ablation efficiency is dependent upon
arxiv  

Respiration based steering for high intensity focused ultrasound liver ablation [PDF]

Magnetic Resonance in Medicine, 2013
PurposeRespiratory motion makes hepatic ablation using high intensity focused ultrasound (HIFO) challenging. Previous HIFU liver treatment had required apnea induced during general anesthesia. We describe and test a system that allows treatment of the liver in the presence of breathing motion.MethodsMapping a signal from an external respiratory bellow ...
Juan M. Santos, Yoav Medan, Andrew B. Holbrook, Kim Butts Pauly, Pejman Ghanouni, Charles L. Dumoulin   +5 more
openaire   +3 more sources

AAPM Task Group No. 249.B—Essentials and guidelines for clinical medical physics residency training program

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract The establishment of guidelines and curriculum standards for medical physics residency training is a critical component of setting expectations and competencies for the profession. Since the last publication of these standards, residency training has become integrated into the eligibility criteria for most medical physics certification bodies.
Jonathon A. Nye, Joseph P. Dugas, William D. Erwin, David P. Gierga, Darryl G. Kaurin, Stephanie M. Leon, Ho‐Ling Anthony Liu, Zheng Feng Lu, Alphonso W. Magri, Lynn N. Rill, Leah K. Schubert, Beth A. Schueler, Irina Vergalasova, John Vetter, Brian D. Wichman, Amy Shu‐Jung Yu, Dandan Zheng   +16 more
wiley   +1 more source

Balloon Catheter Position and its Relationship with Esophageal Temperature during Pulmonary Vein Isolation using High-Intensity Focused Ultrasound

Indian Pacing and Electrophysiology Journal, 2012
Background: HIFU can achieve PVI, but severe esophageal complications have happened. We analyzed relative position of HIFU balloon catheter (BC) to esophageal temperature (ET) probe and correlated it to ET changes.
Kars Neven, MD, Andreas Metzner, MD, Boris Schmidt, MD, Feifan Ouyang, MD, Karl-Heinz Kuck, MD   +4 more
doaj   +1 more source

Clinical application of high-intensity focused ultrasound ablation for uterine fibroids [PDF]

Biomedical Engineering Letters, 2017
HIFU (high-intensity focused ultrasound) ablation is an emerging therapeutic modality that induces thermal coagulative necrosis of biological tissues by focusing high-energy ultrasound waves onto one small spot. This technique is at various stages of clinical applications in several organs.
Young-sun Kim, Young-sun Kim
openaire   +2 more sources

The Regulation of Trace Metal Elements in Cancer Ferroptosis

Advanced Biology, EarlyView.
The induction of ferroptosis inhibits tumor growth, enhances anticancer efficacy, and overcomes drug resistance. Recent evidence shows nonferrous metal elements play a role in ferroptosis. This review focuses on how trace metals regulate ferroptosis processes like iron accumulation, lipid peroxidation, and antioxidant defense.
Xiaoyan Wang, Yuanyuan Xue, Lei Chang, Xuena Zhu, Wenjun Liu, Tingbo Liang   +5 more
wiley   +1 more source

Integration of photoacoustic imaging and high-intensity focused ultrasound [PDF]

, 2015
This is the published version.We have developed an integrated photoacoustic imaging (PAI) and high-intensity focused ultrasound (HIFU) system for solid tumor treatments.
Cui, Huizhong, Staley, Jacob W., Yang, Xinmai   +2 more
core   +1 more source

Non‐Destructive and Mechanical Characterization of the Bond Quality of Co‐Extruded Titanium‐Aluminum Profiles

Advanced Engineering Materials, EarlyView.
This study investigates the bond quality of co‐extruded aluminum–titanium hybrid profiles, focusing on the lateral angular co‐extrusion (LACE) process. It examines how heat treatments (HT) affect intermetallic phase formation, bond strength, and material properties.
Norman Mohnfeld, Ahmed Dewidar, Karim Qarbi, Hendrik Wester, Florian Patrick Schäfke, Alexej Verschinin, Hans Jürgen Maier, Sebastian Barton, Christian Klose, Johanna Uhe   +9 more
wiley   +1 more source

Evaluation of Thiel cadaveric model for MRI-guided stereotactic procedures in neurosurgery [PDF]

, 2014
BACKGROUND: Magnetic resonance imaging (MRI)-guided deep brain stimulation (DBS) and high frequency focused ultrasound (FUS) is an emerging modality to treat several neurological disorders of the brain.
Benabid, Benabid, Benabid, Benabid, Benito-Leon, Benkhadra, Benkhadra, Bittar, Blond, Eisma, Eljamel, Fisher, Giger, Hertzberg, Holzle, Hosobuchi, Latitinen, Mayberg, McDannold, McDannold, McLeod, Medel, Medel, Nuttin, Ram, Siegfried, Svennilson, Tellez-Zenteno, Thiel, Thiel, Treat, Vidailhet   +31 more
core   +3 more sources

Advances in Hybrid Icing and Frosting Protection Strategies for Optics, Lens, and Photonics in Cold Environments Using Thin‐Film Acoustic Waves

Advanced Engineering Materials, EarlyView.
This article provides a comprehensive overview of fundamentals and recent advances of transparent thin‐film surface acoustic wave technologies on glass substrates for monitoring and prevention/elimination of fog, ice, and frost. Fogging, icing, or frosting on optical lenses, optics/photonics, windshields, vehicle/airplane windows, and solar panel ...
Hui Ling Ong, Zhangbin Ji, Luke Haworth, Yihao Guo, Jaime del Moral, Stefan Jacob, Ana Borras, Agustin R. Gonzalez‐Elipe, Jikai Zhang, Jian Zhou, Glen McHale, Yong‐Qing Fu   +11 more
wiley   +1 more source