Results 81 to 90 of about 148,145 (314)

Ultrasound-assisted angioplasty for failing arteriovenous access

Indian Journal of Vascular and Endovascular Surgery, 2019
Introduction: Arteriovenous (AV) access maturity and patency is critical for patients on hemodialysis. Maintaining a functioning AV access for these patients is of paramount importance.
Shahzad Sarosh Bulsara, Vinit Paliwal, Govind Prasad, N R Manjubharath, Ashutosh Aher, Ashish Airen, Tapish Sahu, Virender Sheorain, Tarun Grover, Rajiv Parakh   +9 more
doaj   +1 more source

Characterization of focal liver lesions using sulphur hexafluoride (SF6) microbubble contrast-enhanced ultrasonography

The Egyptian Journal of Radiology and Nuclear Medicine, 2021
Background Focal hepatic lesions incidentally detected during ultrasound usually need further step for proper characterization. The aim of this study was to highlight the efficacy of microbubble contrast-enhanced ultrasonography (CEUS) in ...
Mohamed Gamal El-Din Mansour, Mona Hussein Abdel Kader, Hanan Mahmoud Arafa, Susan Adil Ali   +3 more
doaj   +1 more source

Effect of delayed acquisition times on Gadolinium-enhanced MRI of the presumably normal canine brain [PDF]

, 2011
A delay in imaging following intravenous contrast medium administration has been recommended to reduce misdiagnoses. However, the normal variation of contrast enhancement in dogs following a delay has not been characterized.
Brannan, N., Cameron, G., Hammond, G., Joslyn, S., Novellas Torroja, R., Sullivan, M.   +5 more
core   +1 more source

Exploiting Two‐Photon Lithography, Deposition, and Processing to Realize Complex 3D Magnetic Nanostructures

Advanced Functional Materials, EarlyView.
Two‐photon lithography (TPL) enables 3D magnetic nanostructures with unmatched freedom in geometry and material choice. Advances in voxel control, deposition, and functionalization open pathways to artificial spin ices, racetracks, microrobots, and a number of additional technological applications.
Joseph Askey, Arjen van den Berg, Sandra Ruiz Gomez, Claire Donnelly, Dirk Grundler, Sam Ladak   +5 more
wiley   +1 more source

RGD-Targeted Ultrasound Contrast Agent for Longitudinal Assessment of Hep-2 Tumor Angiogenesis In Vivo. [PDF]

PLoS ONE, 2016
OBJECTIVE:To prepare arginine-glycine-aspartate (RGD)-targeted ultrasound contrast microbubbles (MBs) and explore the feasibility of their use in assessing dynamic changes in αvβ3 integrin expression in a murine model of tumor angiogenesis.
Qiao Hu, Xiao-Yan Wang, Li-Ke Kang, Hai-Ming Wei, Chun-Mei Xu, Tao Wang, Zong-Hua Wen   +6 more
doaj   +1 more source

Local classification of microvascular function based on contrast-enhanced ultrasound data: a feasibility study [PDF]

, 2015
National audienceDynamic contrast-enhanced ultrasound can detect microvascular flow changes during tumor development and antiangiogenic therapy. However, the standard method for microvascular flow estimation in tumors is global and can lead to bias in ...
Barrois, Guillaume, Bridal, Lori, Coron, Alain, De Cesare, Alain, Dizeux, Alexandre, Doury, Maxime, Frouin, Frédérique, Le Guillou-Buffello, Delphine   +7 more
core   +1 more source

Spleen‐Targeting Biomimetic Hybrid Nanocarriers for Systemic Immune Reprogramming in Colitis: RBC Membrane Vesicle‐Fused Lipid Nanoparticles

Advanced Functional Materials, EarlyView.
A spleen‐targeting hybrid nanoplatform (RBCMV‐LNP‐RP) harnessing erythrophagocytosis mimics senescent red blood cell clearance to achieve spleen‐specific delivery of rapamycin. This biomimetic system enables selective accumulation in splenic macrophages, orchestrating systemic immune reprogramming and promoting mucosal healing in an inflammatory bowel ...
Jun Kwon, Hee Su Sohn, Jong Sang Yoon, So Won Jeon, Hee Gyeong Ko, Min‐Ho Kang, Jisun Lee, Jae‐Hwan Nam, Louis T. Merriam, Edy Y. Kim, Han Young Kim   +10 more
wiley   +1 more source

Reconfigurable Magnetic Soft Microrobot for Acoustically Triggered Targeted Bacterial Sterilization

Advanced Functional Materials, EarlyView.
Reconfigurable magnetic soft microrobots integrate in situ‐grown piezoelectric zinc oxide nanorods that produce reactive oxygen species upon acoustic excitation. Combining magnetically guided transport with thermally induced planar reconfiguration, the microrobots achieve targeted delivery and enhanced bacterial sterilization through efficient on ...
Quan Gao, Fan Li, Jiajie Gao, Elric Zhang, Yingdong Su, Ni Qin, Hao Ye, Josep Puigmartí, Giuseppe Cantarella, Simone Schuerle, Jiang Wu, Bradley J. Nelson, Salvador Pané   +12 more
wiley   +1 more source

Diagnostic imaging for hepatocellular carcinoma [PDF]

, 2019
Hepatocellular carcinoma (HCC) occurs mostly in individuals with cirrhosis, which is why the guidelines of the most important scientific societies indicate that these patients are included in surveillance programs through the repetition of an ultrasound ...
DE SANTIS, Adriano
core   +1 more source

Insight into the Internal Structure of Biogenic, Synthetic and Geological Apatite by Electron Microscopy and X‐Ray Scattering

Advanced Functional Materials, EarlyView.
Apatite occurs in many forms in nature, e.g. in teeth and geological minerals. Internally, biological apatite contains nanocrystals that are also found in synthetically prepared calcium phosphate nanoparticles which are used in biomedicine, e.g. for gene and drug delivery and for bone regeneration. Abstract Calcium phosphate is the inorganic component (
Kathrin Kostka, Oleg Prymak, Kateryna Loza, Matthias Epple   +3 more
wiley   +1 more source