Results 21 to 30 of about 2,804,406 (287)

Predictive factors of contrast-enhanced ultrasonography for the response to transarterial chemoembolization in hepatocellular carcinoma [PDF]

Clinical and Molecular Hepatology, 2015
Background/AimsThe predictive role of contrast-enhanced ultrasonography (CEUS) before performing transarterial chemoembolization (TACE) has not been determined. We assessed the possible predictive factors of CEUS for the response to TACE.MethodsSeventeen
Kil Hyo Park, Soon Ha Kwon, Yong Sub Lee, Soung Won Jeong, Jae Young Jang, Sae Hwan Lee, Sang Gyune Kim, Sang-Woo Cha, Young Seok Kim, Young Deok Cho, Hong Soo Kim, Boo Sung Kim, Yong Jae Kim   +12 more
doaj   +1 more source

A mobile battery-powered brain perfusion ultrasound (BPU) device designed for prehospital stroke diagnosis: correlation to perfusion MRI in healthy volunteers

Neurological Research and Practice, 2022
Background Early prehospital stroke identification is crucial for goal directed hospital admission especially in rural areas. However, clinical prehospital stroke scales are designed to identify any stroke but cannot sufficiently differentiate ...
Mustafa Kilic, Fabien Scalzo, Chandler Lyle, Dobri Baldaranov, Maximilian Dirnbacher, Tristan Honda, David S. Liebeskind, Felix Schlachetzki   +7 more
doaj   +1 more source

Evolution of contrast agents for ultrasound imaging and ultrasound-mediated drug delivery

Frontiers in Pharmacology, 2015
Ultrasound is one of the most frequently used diagnostic methods. It is a non-invasive, comparably inexpensive imaging method with a broad spectrum of applications, which can be increased even more by using bubbles as contrast agents.
Vera ePaefgen, Dennis eDoleschel, Fabian eKiessling   +2 more
doaj   +1 more source

Ovaidan Ultrasound Image Enhancement By Pseudocolouring. [PDF]

, 2004
Image processing may be employed on ovarian ultrasound images to assist doctors in diagnostic analysis. The gray levels of ovarian images are usually concentrated at the zero end of the spectrum ,making the image too low in contrast and too dark for the ...
Mashor, Mohd Yusoff, Ngah, Umi Kalthum, Saidin, Nafiza   +2 more
core   +1 more source

Magnetomotive Ultrasound Imaging Systems : Basic Principles and First Applications

, 2020
This review discusses magnetomotive ultrasound, which is an emerging technique that uses superparamagnetic iron oxide nanoparticles as a contrast agent. The key advantage of using nanoparticle-based contrast agents is their ability to reach extravascular
Jansson, Tomas, Evertsson, Maria, Sjöstrand, Sandra, Evertsson, Maria,, Sjöstrand, Sandra,, Lund University., Jansson, Tomas,   +6 more
core   +2 more sources

Filling of Fine and Core Biopsy Needles With the Contrast Agent Sulfur Hexafluoride : Ex Vivo and in vitro Evaluation of Ultrasound Needle Visibility.

, 2020
OBJECTIVES: To investigate whether the ex vivo and in vitro ultrasound visibility of fine needles (FNs) and core biopsy needles (CNBs) can be improved by filling them with an ultrasound contrast agent.
Anders Nilsson, Thunswärd, Per, Ahlström, Håkan,, Nilsson, Anders, Per Thunswärd, Håkan Ahlström, Ahlström, Håkan, Thunswärd, Per,, Nilsson, Anders,   +8 more
core   +1 more source

Nano Ultrasound Contrast Agent for Synergistic Chemo‐photothermal Therapy and Enhanced Immunotherapy Against Liver Cancer and Metastasis

Advanced Science, 2023
Advanced liver cancer is the most fatal malignant cancer, and the clinical outcomes of treatment are not very satisfactory due to the complexity and heterogeneity of the tumor.
Yijie Qiu, Zhihua Wu, Yanling Chen, Jinghan Liao, Qi Zhang, Quan Wang, Yi Duan, Ke Gong, Sheng Chen, Liting Wang, Peili Fan, Yourong Duan, Wenping Wang, Yi Dong   +13 more
doaj   +1 more source

Ultrasound-Enhanced Thrombolysis Using Definity® as a Cavitation Nucleation Agent [PDF]

Ultrasound in Medicine & Biology, 2008
Ultrasound has been shown previously to act synergistically with a thrombolytic agent, such as recombinant tissue plasminogen activator (rt-PA) to accelerate thrombolysis. In this in vitro study, a commercial contrast agent, Definity, was used to promote and sustain the nucleation of cavitation during pulsed ultrasound exposure at 120 kHz ...
Datta, S, Coussios, C, Ammi, A, Mast, T, Courten-Myers, d, Holland, C   +5 more
openaire   +3 more sources

Time-resolved nanoseconds dynamics of ultrasound contrast agent microbubbles manipulated and controlled by optical tweezers [PDF]

, 2006
Optical tweezers enable non-destructive, contact-free manipulation of ultrasound contrast agent (UCA) microbubbles, which are used in medical imaging for enhancing the echogenicity of the blood pool and to quantify organ perfusion.
Michel Versluis, Garbin, Valeria, Versluis, Michel; id_orcid, Overvelde, Marlies, Enzo Di Fabrizio, Ferrari, Enrico, Di Fabrizio, Enzo, Cojoc, Dan, Valeria Garbin, Dan Cojoc, van der Meer, Sander, Nico de Jong, Detlef Lohse, Sander M. van der Meer, Lohse, Detlef, de Jong, Nico, Enrico Ferrari, Marlies L. J. Overvelde   +17 more
core   +1 more source

How to Perform Cardiac Contrast-Enhanced Ultrasound (cCEUS): Part II—Advanced Applications and Interpretation

Diagnostics
Ultrasound enhancing agents (UEAs, formerly called contrast agents) have enhanced echocardiographic diagnostics of myocardial disease and masses as well as myocardial perfusion abnormalities. This review provides up-to-date guidance on the procedures and
Harald Becher, Andreas Helfen, Guido Michels, Nicola Gaibazzi, Roxy Senior, Christoph Frank Dietrich   +5 more
doaj   +1 more source