Results 31 to 40 of about 446,204 (258)

Evaluation of Fetal Central Nervous System Anomalies by Ultrasound and Its Anatomical Co-relation [PDF]

Journal of Clinical and Diagnostic Research, 2014
Introduction: Central nervous system anomalies are often severe and are the most common indications for therapeutic abortions. Ultrasound examination helps to identify and evaluate them well before birth.
DEEPALI ONKAR, PRASHANT ONKAR, KAJAL MITRA   +2 more
doaj   +1 more source

Protection Circuit Design for Ultrasound Transducers

Applied Sciences
In ultrasound systems, a protection circuit must be used to protect the receiver electronics from the high-voltage pulses generated by the transmitter and to minimize the signal loss and distortion of the low-voltage echoes generated by the transducer ...
Hojong Choi
doaj   +1 more source

Planar ultrasonic transducer based on a metasurface piezoelectric ring array for subwavelength acoustic focusing in water

Scientific Reports, 2022
The development of a new ultrasonic transducer capable of improved focusing performance has become a necessity to overcome the limitations of conventional ultrasonic transducer technology.
Shin Hur, Hyunggyu Choi, Gil Ho Yoon, Nam Woon Kim, Duck-Gyu Lee, Yong Tae Kim   +5 more
doaj   +1 more source

Design of Preamplifier for Ultrasound Transducers

Sensors
In diagnostic ultrasound imaging applications, preamplifiers are used as first-stage analog front-end amplifiers for ultrasound transducers because they can amplify weak acoustic signals generated directly by ultrasound transducers.
Hojong Choi
doaj   +1 more source

Ultrasound Probe Calibration Method of Single-Wire Phantom Using Levenberg-Marquardt Algorithm

Jurnal Nasional Teknik Elektro dan Teknologi Informasi, 2023
A freehand three-dimensional (3D) ultrasound system is a method of acquiring images using a 3D ultrasound probe or conventional two-dimensional (2D) ultrasound probe to give a 3D visualization of an object inside the body.
Tri Arief Sardjono, Eko Mulyanto Yuniarno, I Made Gede Sunarya, I Ketut Eddy Purnama, Mauridhi Hery Purnomo, Norma Hermawan   +5 more
doaj   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen, Calogero Virgone, Antje Redlich, Michael Abele, Ricardo Lopez‐Almaraz, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Maja Mazic Cesen, Andrea Ferrari, Malgorzata A. Krawczyk, Yves Reguerre, Dominik T. Schneider, Ines B. Brecht, Charlotte Rigaud, Bilgehan Yalcin, Rainer Claus, Christian Vokuhl, Constantin Lapa, Jörg Fuchs, Segolene Hescot, Thomas Walter, Julien Hadoux, Daniel Orbach   +23 more
wiley   +1 more source

Guidelines for Pediatric Radiotherapy Simulation: A Report From the Children's Oncology Group Radiation Oncology Discipline

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric radiation therapy presents unique challenges compared to adult treatments, including those of immobilization, potential need for sedation, and the critical importance of accurate, reproducible positioning. Additionally, heightened attention to imaging doses is necessary to minimize long‐term toxicity in survivors.
Parham Alaei, Stephen Mihalcik, Sujith Baliga, Young Kwok, Dana Casey, Eric Ehler, Christiane Burton, John C. Breneman, Daphne A. Haas‐Kogan, Suzanne L. Wolden, Arnold C. Paulino, Nadia N. Laack, Natia Esiashvili, Sarah Milgrom, Christine Hill‐Kayser, Thomas J. Fitzgerald, John A. Kalapurakal, Chia‐Ho Hua   +17 more
wiley   +1 more source

Ablative brain surgery: an overview

International Journal of Hyperthermia, 2019
Background: Ablative therapies have been used for the treatment of neurological disorders for many years. They have been used both for creating therapeutic lesions within dysfunctional brain circuits and to destroy intracranial tumors and space-occupying
Andrea Franzini, Shayan Moosa, Domenico Servello, Isabella Small, Francesco DiMeco, Zhiyuan Xu, William Jeffrey Elias, Angelo Franzini, Francesco Prada   +8 more
doaj   +1 more source

A Novel Bionic Catalyst-Mediated Drug Delivery System for Enhanced Sonodynamic Therapy

Frontiers in Bioengineering and Biotechnology, 2021
Ultrasound (US)-triggered sonodynamic therapy (SDT) proves itself to be a formidable tool in the fight against cancer, due to its large spectrum of uses as a non-invasive therapeutic measure, while also demonstrating itself to be a certain improvement ...
Yiling Yang, Shaohua Hua, Weilong Suo, Wenbin Wang, Wenbin Wang, Longhao Wang, Longhao Wang, Zhengguang Chen, Kefeng Liu, Jie Zhao, Jie Zhao   +10 more
doaj   +1 more source

Clinical, Histopathological, and Molecular Characterization of Pediatric MN1::ZNF341‐Associated Cancer

Pediatric Blood &Cancer, EarlyView.
ABSTRACT A lethal round‐cell malignancy with an MN1::ZNF341 fusion has recently been reported in three infants. Here, we describe four further tumors, three in newborns (including monozygotic twins), and one in an adolescent. Detailed clinical, radiological, and histopathological data differentiate these tumors from their main mimics, neuroblastoma and
Thomas R. W. Oliver, Dyanne Rampling, Barbara Walkowiak, Nathaniel D. Anderson, Manas Dave, Henry Lee‐Six, Sadie Baskind, Pooja Balasubramanian, Glenn Anderson, Conor Parks, Toochi Ogbonnah, Emilia R. Robertson, Simon Hannam, Rohan Verma, John C. Achermann, Liina Palm, Neil Sebire, Thomas Jacques, Tom Watson, Carryl Dryden, Karin Straathof, Mette Jorgensen, Olga Slater, Sam Behjati, Sarita Depani, J. Ciaran Hutchinson   +25 more
wiley   +1 more source