Results 11 to 20 of about 4,621,962 (301)

Contrast agents for ultrasound examination [PDF]

open access: yesБюллетень сибирской медицины, 2011
Ultrasound examination is the integral component of diagnostic imaging and it is widely used method for medical visualization in Russian clinical medicine. Modern diagnostic imaging inseparably linked with use of contrast agents.
S. V. Fomina   +4 more
doaj   +2 more sources

Characterization of Acoustic Properties of PVA-Shelled Ultrasound Contrast Agents

open access: yes, 2010
This work examines the acoustic behavior of ultrasound contrast agents made of poly (vinyl alcohol) (PVA) shelled microbubbles manufactured at three different pH and temperature conditions.
Paradossi, Gaio,   +3 more
core   +9 more sources

11,11-Diphenyl-11H-indeno[1,2-b]quinoxaline

open access: yesIUCrData, 2020
In the title compound, C27H18N2, the mean planes of the pendant benzene rings are approximately perpendicular to one another, making a dihedral angle of 79.3 (5)°; the indeno[1,2-b]quinoxaline ring system (r.m.s.
Lin Chen   +3 more
doaj   +1 more source

Mn-Based MRI Contrast Agents: An Overview

open access: yesMolecules, 2023
MRI contrast agents are required in the clinic to detect some pathologies, such as cancers. Nevertheless, at the moment, only small extracellular and non-specific gadolinium complexes are available for clinicians.
Céline Henoumont   +2 more
doaj   +1 more source

Biogenic Imaging Contrast Agents

open access: yesAdvanced Science, 2023
Imaging contrast agents are widely investigated in preclinical and clinical studies, among which biogenic imaging contrast agents (BICAs) are developing rapidly and playing an increasingly important role in biomedical research ranging from subcellular ...
Qing Dan   +4 more
doaj   +1 more source

Stable Thermally-Modulated Nanodroplet Ultrasound Contrast Agents

open access: yesNanomaterials, 2021
Liquid perfluorocarbon-based nanodroplets are stable enough to be used in extravascular imaging, but provide limited contrast enhancement due to their small size, incompressible core, and small acoustic impedance mismatch with biological fluids.
Anastasiia Vasiukhina   +5 more
doaj   +1 more source

Magnetite nanodiscs as vortex-enhanced MRI contrast agents: a novel approach in medical imaging. [PDF]

open access: yesNanoscale Adv
Magnetic nanoparticles can serve as contrast agents for magnetic resonance imaging (MRI) to enhance sensitivity and improve imaging contrast. This study investigated anisotropic magnetite nanodiscs (MNDs) with vortex magnetization, which exhibit high ...
Koçar E   +18 more
europepmc   +3 more sources

Diethyl 3,3′-[(4-fluorophenyl)methylidene]bis(1H-indole-2-carboxylate)

open access: yesIUCrData, 2019
In the title compound, C29H25FN2O4, the mean planes of the indole ring systems (r.m.s. deviations = 0.0107 and 0.0158 Å) are approximately perpendicular to each other, subtending a dihedral angle of 87.43 (16)°. The 4-fluorophenyl ring is twisted by 77.6 
Yu-Long Li   +6 more
doaj   +1 more source

Crystal structure of diethyl 3,3′-[(2,4-dichlorophenyl)methylidene]bis(1H-indole-2-carboxylate)

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2017
In the title compound, C29H24Cl2N2O4, the mean planes of the two indole ring systems (r.m.s. deviations = 0.1249 and 0.0075 Å) are approximately perpendicular to one another, with a dihedral angle of 80.9 (5)° between them.
Yu-Long Li   +4 more
doaj   +1 more source

Crystal structure of diethyl 3,3′-[(4-nitrophenyl)methylene]bis(1H-indole-2-carboxylate)

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2017
In the title compound, C29H25N3O6, the mean planes of the two indole ring systems (r.m.s. deviations = 0.0115 and 0.0082 Å) are approximately perpendicular to one another, making a dihedral angle of 89.7 (5)°; the benzene ring is twisted with respect to ...
Hong-Shun Sun   +4 more
doaj   +1 more source

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