Results 41 to 50 of about 105,293 (255)

Metamaterial Antennas Enhance MRI of the Eye and Occipital Brain

Advanced Materials, EarlyView.
A radiofrequency antenna platform comprising planar and bend configurations is developed, incorporating structurally integrated epsilon‐negative metamaterial unit cells to enhance MRI. These antennas enable high‐resolution in vivo human MRI of the eye, orbit, and occipital brain. Comprehensive validation, including simulations, phantom experiments, SAR,
Nandita Saha, Bilguun Nurzed, Mostafa Berangi, Andre Kuehne, Helmar Waiczies, Igor Fabian Tellez Ceja, Xiang Hu, Thomas Gladytz, Lisa Krenz, Dave Huebler, Beate Endemann, Claudia Brockmann, Ebba Beller, Oliver Stachs, Thoralf Niendorf   +14 more
wiley   +1 more source

Non-contrast ultrasound assessment of blood flow in clinical practice

Journal of Ultrasonography
Since the first clinical use of ultrasound in the 1940s, significant advancements have been made in its applications. Color Doppler imaging and power Doppler imaging are considered the first and second generations of flow ultrasound assessment tools ...
Babington Emmanuel Abiola, Amedu Cletus, Anyasor Ebuka, Reeve Ruth   +3 more
doaj   +1 more source

Doppler evaluation of endometrial polyps

The Egyptian Journal of Radiology and Nuclear Medicine, 2018
Introduction: Endometrial polyps are a common cause of abnormal uterine bleeding. Ultrasound is the most accepted investigation to evaluate them. However, the diagnosis can be difficult and even missed on transabdominal and grayscale imaging.
Saika Amreen, Manjeet Singh, Naseer Ahmad Choh, Cimona Saldanha, Tariq A. Gojwari   +4 more
doaj   +1 more source

Ultrasonographic criteria for the major salivary glands: a perspective for the application of new technologies [PDF]

, 2018
It emerges from the interesting recent article by David et al. (4) on high-resolution ultrasound is the first line examination for parotid gland diffuse disease and focal lesions, normally using grey-scale and color-Doppler ultrasound especially using
Messineo, Daniela
core   +1 more source

Microfluidic Engineering of Chitosan‐Coated Nanoemulsions for Controlled Release and Stability in Space Pharmaceutics

Advanced Materials Technologies, EarlyView.
Microfluidic engineering enables the fabrication of chitosan‐coated, melatonin‐loaded nanoemulsions with controlled release and enhanced physicochemical stability for space pharmaceutics. Interfacial biopolymer coating modulates droplet behavior under accelerated thermal stress and simulated microgravity.
Modupe Adebowale, Nguyen Van Duc Long, Philip M Williams, Volker Hessel   +3 more
wiley   +1 more source

Color Doppler Imaging in Hyperthroidism

Eurasian Journal of Medicine, 2019
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Selami Suma, Pınar Polat, Yaşar Ceylan, Güngör Akçay, Adnan Okur   +4 more
doaj  

Efficacy of color Doppler ultrasound and contrast-enhanced ultrasound in identifying vascular invasion in pancreatic ductal adenocarcinoma

Insights into Imaging
Objectives To compare color Doppler ultrasound and contrast-enhanced ultrasound (CEUS) in evaluating vascular invasion in pancreatic ductal adenocarcinoma (PDAC).
Wan-Ying Jia, Yang Gui, Xue-Qi Chen, Li Tan, Jing Zhang, Meng-Su Xiao, Xiao-Yan Chang, Meng-Hua Dai, Jun-Chao Guo, Yue-Juan Cheng, Xiang Wang, Jia-Hui Zhang, Xiao-Qian Zhang, Ke Lv   +13 more
doaj   +1 more source

A different approach to cystinosis: ultrasound, doppler, and shear wave elastography findings of thyroid gland

Orphanet Journal of Rare Diseases, 2023
Background While thyroid dysfunction develops in about 50% of untreated children with cystinosis, there is no data about how the sonography of thyroid tissue appears in this disease.
Derya Bako, Sebile Kılavuz, Adem Yasin Köksoy, Zeynep Uzan Tatli, Engin Beydogan   +4 more
doaj   +1 more source

Techniques for Identification of Left Ventricular Asynchrony for Cardiac Resynchronization Therapy in Heart Failure [PDF]

, 2005
The most recent treatment option of medically refractory heart failure includes cardiac resynchronization therapy (CRT) by biventricular pacing in selected patients in NYHA functional class III or IV heart failure. The widely used marker to indicate left
Peter, Schuster, Svein, Faerestrand
core  

Characterization of fluorescence collection optics integrated with a micro-fabricated surface electrode ion trap

, 2013
One of the outstanding challenges for ion trap quantum information processing is to accurately detect the states of many ions in a scalable fashion. In the particular case of surface traps, geometric constraints make imaging perpendicular to the surface ...
Chou, Chin-wen, Clark, Craig R., Ellis, A. R., Hunker, Jeff, Kemme, Shanalyn A., Maunz, Peter, Stick, Daniel L., Tabakov, Boyan, Tigges, Chris   +8 more
core   +1 more source