Results 61 to 70 of about 11,571 (219)

A comparative evaluation of three hydrophones and a numerical model in high intensity focused ultrasound fields

, 2011
The pressure fields of two different high intensity focused ultrasound (HIFU) transducers operated in burst mode were measured at acoustical power levels of 25 and 50 W (continuous wave equiva- lent) with three different hydrophones: A fiber-optic ...
Shaw A., DURANDO, GIOVANNI, Haller J
core   +1 more source

AI-powered ultrasonic thermometry for HIFU therapy in deep organ

Ultrasonics Sonochemistry
High-intensity focused ultrasound (HIFU) is considered as an important non-invasive way for tumor ablation in deep organs. However, accurate real-time monitoring of the temperature field within HIFU focal area remains a challenge.
Shunyao Luan, Yongshuo Ji, Yumei Liu, Linling Zhu, Hong Zhao, Haoyu Zhou, Ke Li, Weizhen Zhu, Benpeng Zhu   +8 more
doaj   +1 more source

Staged Bilateral Magnetic Resonance‐Guided Focused Ultrasound for Treating Essential Tremor: Systematic Review and Meta‐Analysis

Movement Disorders Clinical Practice, EarlyView.
Abstract Background Unilateral magnetic resonance guided focused ultrasound (MRgFUS) thalamotomy reduces tremor in essential tremor, yet disability often persists on the untreated side. The added benefit and safety of a staged contralateral lesion remain uncertain.
Nima Norbu Sherpa, Andrea Gonzalez Lezana, Gabriela Prilip, Kenji Fukutome, Nathan J. Pertsch, Ruth Reeve, Nadège Bault, Elsa Fouragnan   +7 more
wiley   +1 more source

HIFU Beam Imaging Based on Scattering Signals from Focal Area [PDF]

, 2013
High-Intensity Focused Ultrasound (HIFU) is one of minimally invasive surgical procedures. However there are refractions and reflections which cause the actual focal point deviates from the geometrical focal point of transducer.
Itani, Kazunori, Sasaki, Akira, Fujiwara, Keisuke, Takeuchi, Hideki, Yoshinaka, Kiyoshi, Yonetsuji, Taizan, Azuma, Takashi, Kobayashi, Etsuko, Sakuma, Ichiro   +8 more
core   +1 more source

Harnessing the nonthermal effects of ultrasound for cancer treatment: From mechanisms to applications

Smart Molecules, EarlyView.
Nonthermal ultrasound transforms acoustic energy into diverse therapeutic bioeffects through cavitation, mechanical stimulation, and physicochemical activation. This review discusses how acoustic parameters, biological mechanisms, and responsive materials interact to influence nonthermal ultrasound‐enabled cancer therapies. Mechanism‐guided engineering
Liu Wang, Huan Tang, Yue Pan, Mingle Li, Weijie Zhao, Kai Liu   +5 more
wiley   +1 more source

Tissue-mimicking thermochromic phantom for characterization of HIFU devices and applications

International Journal of Hyperthermia, 2019
Purpose: Tissue-mimicking phantoms (TMPs) are synthetic materials designed to replicate properties of biological tissues. There is a need to quantify temperature changes following ultrasound or magnetic resonance imaging-guided high intensity focused ...
Avinash Eranki, Andrew S. Mikhail, Ayele H. Negussie, Prateek S. Katti, Bradford J. Wood, Ari Partanen   +5 more
doaj   +1 more source

Mapping the lineage of prostate tissue ablation medical device predicates for focal therapy of prostate cancer approved via the FDA 510(k) clearance pathway

Surgical Practice, EarlyView.
Abstract Objective Medical devices are reviewed by the US Food and Drug Administration (FDA) for safety and effectiveness. Class II devices can receive 510(k) clearance if they are “substantially equivalent” to an existing predicate device. This process can be repeated iteratively, leading to a lineage of predicates for newly cleared devices.
Yiting Lin, Amir Khan, Arvin George, Mohummad Minhaj Siddiqui   +3 more
wiley   +1 more source

Tarkistuslista kohdun myoomien HIFU-hoidoissa : tarkistuslista röntgenhoitajalle [PDF]

, 2018
Tämän opinnäytetyön tavoitteena on HIFU-hoitoihin liittyvän osaamisen ja toiminnan laadun, sekä turvallisuuden varmistaminen. Aiheena on kuvata röntgenhoitajan tehtävät kohdun myoomien HIFU-hoidoissa ja antaa lisätietoa HIFU-hoidoista ja niissä ...
Sirkkola, Linda
core  

High-intensity focused ultrasound ablation to increase tumor-specific lymphocytes in prostate cancer

Translational Oncology
Treatment options for localized prostate cancer have been expanded by FDA-approval of High-Intensity Focused Ultrasound (HIFU). Prostate cancer typically has few tumor-infiltrating lymphocytes, which are crucial for antitumor immunity.
Shengchen Su, Yanping Wang, Eric M. Lo, Patrick Tamukong, Hyung L. Kim   +4 more
doaj   +1 more source

Interventional oncology in children: Where are we now?

Journal of Medical Imaging and Radiation Oncology, EarlyView.
Abstract Paediatric Interventional Oncology (IO) lags behind adult IO due to a scarcity of specific outcome data. The suboptimal way to evolve this field is relying heavily on adult experiences. The distinct tumour types prevalent in children, such as extracranial germ cell tumours, sarcomas, and neuroblastoma, differ strongly from those found in ...
Premal Amrishkumar Patel, Fernando Gómez Muñoz   +1 more
wiley   +1 more source