Results 81 to 90 of about 127,254 (333)

Validation of vessel size imaging (VSI) in high-grade human gliomas using magnetic resonance imaging, image-guided biopsies, and quantitative immunohistochemistry. [PDF]

, 2019
To evaluate the association between a vessel size index (VSIMRI) derived from dynamic susceptibility contrast (DSC) perfusion imaging using a custom spin-and-gradient echo echoplanar imaging (SAGE-EPI) sequence and quantitative estimates of vessel ...
Chakhoyan, Ararat, Cloughesy, Timothy F, Ellingson, Benjamin M, Everson, Richard G, Lai, Albert, Leu, Kevin, Liau, Linda M, Nathanson, David A, Nghiemphu, Phioanh L, Pope, Whitney B, Prins, Robert M, Salamon, Noriko, Yao, Jingwen, Yong, William   +13 more
core   +2 more sources

A Vascular Microphysiological Model of Lung Fibrosis Reveals That Myofibroblasts and IPF Patient‐Derived Fibroblasts Impair Angiogenesis and Vasculogenesis

Advanced Functional Materials, EarlyView.
A microphysiological lung fibrosis model recapitulates myofibroblast–vascular interactions. Induced myofibroblasts and patient‐derived IPF fibroblasts impair angiogenesis and increase vascular permeability via TGF‐β1–driven signaling. Pharmacological interventions with SB 431542 and VEGF supplementation restore vascular morphology and barrier function.
Elena Cambria, Adriana Blazeski, Eunkyung Clare Ko, Tran Thai, Shania Dantes, David A. Barbie, Sarah E. Shelton, Roger D. Kamm   +7 more
wiley   +1 more source

Partial volume correction for arterial spin labeling using the inherent perfusion information of multiple measurements

BioMedical Engineering OnLine, 2019
Background Arterial spin labeling (ASL) provides a noninvasive way to measure cerebral blood flow (CBF). The CBF estimation from ASL is heavily contaminated by noise and the partial volume (PV) effect.
Yang Liu, Ze Wang, Ruihua Liang, Zhengrong Liang, Hongbing Lu   +4 more
doaj   +1 more source

Using a Conformal Water Bolus to Adjust Heating Patterns of Microwave Waveguide Applicators [PDF]

, 2017
Background: Hyperthermia, i.e., raising tissue temperature to 40-45°C for 60 min, has been demonstrated to increase the effectiveness of radiation and chemotherapy for cancer.
Dewhirst, Drizdal, Drizdal, Hasgall, Neufield, Rodrigues, Stauffer, Stauffer, Trefna, van Rhoon   +9 more
core   +2 more sources

Interconnected Porous Hydrogels with Tunable Anisotropy Through Aqueous Emulsion Bioprinting

Advanced Functional Materials, EarlyView.
A 3D bioprintable microporous bioink is developed using an aqueous two‐phase system (ATPS) composed of extracellular matrix (ECM) mimetic biopolymers. The ATPS bioink enables the fabrication of interconnected porous architectures with up to 70% porosity, supporting long‐term cell viability and 3D cell alignment, enabling a simultaneous generation of ...
Hugo Edgar‐Vilar, Francisca P. Correia, Inês M. Freitas, Vítor M. Gaspar, João F. Mano   +4 more
wiley   +1 more source

Myocardial first-pass perfusion cardiovascular magnetic resonance: history, theory, and current state of the art

Journal of Cardiovascular Magnetic Resonance, 2008
In less than two decades, first-pass perfusion cardiovascular magnetic resonance (CMR) has undergone a wide range of changes with the development and availability of improved hardware, software, and contrast agents, in concert with a better understanding
Axel Leon, Ferreira Pedro, Epstein Frederick H, Nayak Krishna, Raman Subha V, Gerber Bernhard L, Kraitchman Dara L   +6 more
doaj   +1 more source

A Database for Estimating Organ Dose for Chest and Head CT Scans for Arbitrary Spectra and Angular Tube Current Modulation [PDF]

, 2012
Purpose: The purpose of this study was to develop a database for estimating organ dose in a voxelized patient model for coronary angiography and brain perfusion CT acquisitions with any spectra and angular tube current modulation setting.
Badal, Andreu, Kyprianou, Iacovos, Rupcich, Franco, Schmidt, Taly Gilat   +3 more
core   +1 more source

In vivo laser Doppler holography of the human retina

, 2018
The eye offers a unique opportunity for non-invasive exploration of cardiovascular diseases. Optical angiography in the retina requires sensitive measurements, which hinders conventional full-field laser Doppler imaging schemes.
Atlan, M., Fink, M., Paques, M., Puyo, L., Sahel, J. -A.   +4 more
core   +1 more source

Shape‐Morphing Nanoengineered Hydrogel Ribbons as Hemostats

Advanced Functional Materials, EarlyView.
This study introduces a self‐assembling, shape‐morphing nanoengineered hydrogel ribbon system that rapidly forms porous aggregates in situ for efficient hemostasis in trauma and surgical applications. Abstract Rapid and effective hemorrhage control remains a major challenge in trauma and surgical care, particularly for complex or noncompressible wounds.
Ryan Davis Jr, Saptarshi Biswas, Jacob Aragon, Asaf Dana, Jasmine Sureka, Vaaridhi Ramanuja, Jeevika Thazhaiselvam, Sarah E. Miller, Taylor H. Ware, Akhilesh K. Gaharwar   +9 more
wiley   +1 more source

Beating the reaction limits of biosensor sensitivity with dynamic tracking of single binding events [PDF]

, 2018
The clinical need for ultrasensitive molecular analysis has motivated the development of several endpoint-assay technologies capable of single-molecule readout.
Sevenler, Derin, Trueb, Jacob, Unlu, M. Selim   +2 more
core   +2 more sources