Results 71 to 80 of about 989,563 (206)

Photoacoustic Nanotagging for In Vivo Tracking and Optimization of Macrophage Immunotherapy in Solid Tumors

open access: yesAdvanced Materials, EarlyView.
Macrophage‐based immunotherapy for solid tumors is limited by poor tracking of cell localization and persistence. This study introduces nanotagged macrophages enabling near‐infrared photoacoustic imaging for real‐time monitoring. IFNγ‐conjugated tags enhance antitumor polarization without harming viability.
Seoyoon Song   +8 more
wiley   +1 more source

Obesity: new insight into the anthropometric classification of fat distribution shown by computed tomography [PDF]

open access: yes, 1985
Twenty eight women presenting for routine computed tomography had their waist, hip, and thigh circumferences measured. The ratio of the area of intra-abdominal fat to the area of subcutaneous fat shown in the computed tomogram taken at the umbilical ...
Ashwell, M., Cole, T.J., Dixon, A.K.
core  

Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots

open access: yesAdvanced Robotics Research, EarlyView.
This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou   +4 more
wiley   +1 more source

3D PHOTOACOUSTIC TOMOGRAPHY IN AN ENDOSCOPIC FORM FACTOR

open access: yes, 2020
We present the results of a study to introduce photoacoustic tomography capability into a 2D endoscopic 64-element phased and 3D endoscopic 128-element crossed electrode ultrasound array for the use in endoscopic brain surgery. Our approach was to fix
Landry, Taylor
core  

A Novel Dictionary-Based Image Reconstruction for Photoacoustic Computed Tomography

open access: yesApplied Sciences, 2018
One of the major concerns in photoacoustic computed tomography (PACT) is obtaining a high-quality image using the minimum number of ultrasound transducers/view angles. This issue is of importance when a cost-effective PACT system is needed.
Parsa Omidi   +6 more
doaj   +1 more source

Intelligent Micro/Nanorobots for Targeted Interventional Therapy: From Bench to Clinic

open access: yesAdvanced Robotics Research, EarlyView.
Zirui Zhang et al. reviewed the application and challenges of mobile nanomachines in interventional therapy. By converting exogenous energy, including chemical, magnetic, optical, and ultrasonic sources, into mechanical forces, micro/nanorobots (MNRs) enable precise actuation at unprecedented scales. Evolving far beyond traditional drug delivery, these
Zirui Zhang   +5 more
wiley   +1 more source

Characteristics of the elderly in high - resolution computed tomography lung densitometry [PDF]

open access: yes, 2004
To determine the characteristics of the elderly in high - resolution computed tomography (HRCT) lung densitometry, mean lung density (MLD) and relative area of the lungs showing attenuation values less than -950 HU (RA(950)) on HRCT were evaluated in ...
Hosaki, Yasuhiro   +9 more
core   +1 more source

Photoacoustic-computed tomography 3D data compression method and system based on Wavelet-Transformer

open access: yesJournal of Innovative Optical Health Sciences
Photoacoustic-computed tomography is a novel imaging technique that combines high absorption contrast and deep tissue penetration capability, enabling comprehensive three-dimensional imaging of biological targets.
Jialin Li   +4 more
doaj   +1 more source

Small near-infrared photochromic protein for photoacoustic multi-contrast imaging and detection of protein interactions in vivo

open access: yesNature Communications, 2018
Bacterial phytochrome-based probes improved sensitivity in photoacoustic computed tomography. Here the authors engineer a small near-infrared switchable photochromic probe that allows multi-contrast imaging at depths and can be adapted to study protein ...
Lei Li   +10 more
doaj   +1 more source

Photoacoustic computed tomography for functional human brain imaging [Invited]

open access: yesBiomedical Optics Express, 2021
The successes of magnetic resonance imaging and modern optical imaging of human brain function have stimulated the development of complementary modalities that offer molecular specificity, fine spatiotemporal resolution, and sufficient penetration simultaneously.
Na, Shuai, Wang, Lihong V.
openaire   +3 more sources

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