Results 11 to 20 of about 2,614,946 (310)

Amplified antitumor efficacy by a targeted drug retention and chemosensitization strategy-based “combo” nanoagent together with PD-L1 blockade in reversing multidrug resistance

open access: yesJournal of Nanobiotechnology, 2021
Background Recent studies have demonstrated that multidrug resistance (MDR) is a critical factor in the low efficacy of cancer chemotherapy. The main mechanism of MDR arises from the overexpression of P-glycoprotein (P-gp), which actively enhances drug ...
Weixi Jiang   +15 more
doaj   +1 more source

Predictive Value of the Transthoracic Echocardiography Index for Acute Kidney Injury after Cardiac Valve Surgery

open access: yesJournal of Cardiovascular Development and Disease, 2022
Background: We aimed to demonstrate whether the preoperative transthoracic echocardiography index (TTEI) could improve the predictive value of clinical parameters for cardiac valve surgery-associated acute kidney injury (CVS−AKI). Methods: A total of 213
Juan Guo   +5 more
doaj   +1 more source

Acoustic radiation force impulse imaging for differentiation of thyroid nodules [PDF]

open access: yes, 2012
Background: Acoustic Radiation Force Impulse (ARFI)-imaging is an ultrasound-based elastography method enabling quantitative measurement of tissue stiffness.
Stefan Zeuzem   +39 more
core   +2 more sources

Deconvolution of ultrasound images [PDF]

open access: yesUltrasonic Imaging, 1992
Based on physical models, it is indicated that the received pressure field in ultrasound B-mode images can be described by a convolution between a tissue reflection signal and the emitted pressure field. This result is used in a description of current image formation and in formulating a new processing scheme.
openaire   +3 more sources

Xampling in ultrasound imaging [PDF]

open access: yesSPIE Proceedings, 2011
17 pages, 9 Figures.
Noam Wagner   +4 more
openaire   +3 more sources

Photochemically-driven highly efficient intracellular delivery and light/hypoxia programmable triggered cancer photo-chemotherapy

open access: yesJournal of Nanobiotechnology, 2023
Background Using nanotechnology to improve the efficiency of tumor treatment represents a major research interest in recent years. However, there are paradoxes and obstacles in using a single nanoparticle to fulfill all the requirements of complex tumor ...
Wei Zhang   +7 more
doaj   +1 more source

Morphological Evaluation of Mitral Valve Based on Three-dimensional Printing Models: Potential Implication for Mitral Valve Repair

open access: yesBIO Integration, 2021
Objective: This study aimed to analyze the morphological characteristics of rheumatic (RMVD) and degenerative mitral valve diseases (DMVD) based on three-dimensional (3D) printing model before and after surgery and to explore the potential implication of
Yuanting Yang   +8 more
doaj   +1 more source

Cardiovascular molecular imaging [PDF]

open access: yes, 2013
Although there have been significant improvements in the treatment of cardiovascular diseases they still remain the main cause of morbidity and mortality globally. Currently available diagnostic approaches may not be adequate to detect pathologic changes
Khanicheh, Elham
core   +1 more source

Laser-activated nanoparticles for ultrasound/photoacoustic imaging-guided prostate cancer treatment

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
Prostate cancer (PCa) is the most common malignant tumor in men. Prostate-specific membrane antigen (PSMA), which is overexpressed on the surface of Prostate cancer cells, may serve as a potential therapeutic target.
Linkang Xiao   +7 more
doaj   +1 more source

A review of antenatal MR imaging and correlation with antenatal ultrasound, postnatal imaging and post morem findings [PDF]

open access: yes, 2013
Includes abstract.Includes bibliographical references.To determine the most common indication for foetal MRI, and to correlate ante-natal MRI with ante-natal ultrasound, post-natal imaging and post mortem findings.
Daire, Arthur
core   +1 more source

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