Results 121 to 130 of about 456,556 (361)

The Utility of [18]F-Fluorocholine Positron Emission Computed Tomography and [18]F-Fluorodeoxyglucose Positron Emission Tomography–Computed Tomography in Evaluating Breast Cancer Phenotypes: A Pilot Study [PDF]

open access: yes
Background: The utility of the [18]F fluorodeoxyglucose positron emission tomography–computed tomography ([18]F FDG PET-CT) marker for breast cancer is well established. Given its limitations in localizing FDG-negative malignant tumors, the expression of
Shaharudin, Shazreen   +5 more
core   +1 more source

Super‐Resolution Ultrasound Based Cell Tracking With Polymeric Nanobubbles

open access: yesAdvanced Materials, EarlyView.
This study presents a super‐resolution ultrasound platform for tracking cells in vivo. Biocompatible polymeric nanobubbles are used as highly echogenic intracellular labels. Following the injection of cells and microbubbles, ultrasound localization microscopy (ULM) can dynamically match the microvascular architecture and individual cell trajectories ...
Junlin Chen   +19 more
wiley   +1 more source

Diagnostic Role of F-18 Fluorodeoxyglucose Positron-Emission Tomography/Computed Tomography in Restaging of Upper Urinary Tract Urothelial Carcinoma

open access: yes, 2017
Objective: To retrospectively evaluate contribution of F-18 fluorodeoxyglucose positron-emission tomography/computed tomography (18FDG-PET/CT) to re-staging of upper urinary tract urothelial carcinoma (UTUC). Materials and Methods: This study included a
Hakan Öztürk
core   +1 more source

Selective and divided attention during visual discriminations of shape, color, and speed: functional anatomy by positron emission tomography

open access: yesJournal of Neuroscience, 1991
Positron emission tomography (PET) was used to identify the neural systems involved in discriminating the shape, color, and speed of a visual stimulus under conditions of selective and divided attention.
M. Corbetta   +4 more
semanticscholar   +1 more source

Advances in Halide Perovskites for Photon Radiation Detectors

open access: yesAdvanced Materials Technologies, EarlyView.
This work highlights recent progress in perovskite‐based photon radiation detectors, covering organic–inorganic hybrid, inorganic, lead‐free double, and vacancy‐ordered halide perovskites. Their detection performance is compared, material‐specific advantages and challenges are examined, and provides insight into current limitations and future ...
Liangling Wang   +3 more
wiley   +1 more source

Cardiac Positron Emission Tomography

open access: yesJournal of the American College of Cardiology, 2009
Positron emission tomography (PET) is a powerful, quantitative imaging modality that has been used for decades to noninvasively investigate cardiovascular biology and physiology. Due to limited availability, methodologic complexity, and high costs, it has long been seen as a research tool and as a reference method for validation of other diagnostic ...
Bengel, Frank M.   +3 more
openaire   +2 more sources

In Vivo Microplastic Detection With Photoacoustic Imaging

open access: yesAdvanced Science, EarlyView.
ABSTRACT Microplastics are posing an escalating threat to both ecological systems and human health. Yet, current methods for investigating their bioaccumulation are highly invasive, requiring destructive analysis of ex vivo tissues via mass spectrometry, dye labelling, or Raman microspectroscopy.
Joseph C. Bear   +9 more
wiley   +1 more source

Positron emission tomography: An overview

open access: yesJournal of Medical Physics, 2006
The rate of glucose utilization in tumor cells is significantly enhanced as compared to normal cells and this biochemical characteristic is utilized in PET imaging using FDG as a major workhorse. The PET systems as well as cyclotrons producing positron emitting radiopharmaceuticals have undergone continuous technological refinements.
Shukla, A. K., Kumar, Utham
openaire   +2 more sources

Cyclotron production of short-lived radionuclides and labelled compounds for use in biomedical research and clinical diagnosis [PDF]

open access: yes, 1994
The works submitted in this thesis cover the development of methods for the production in a cyclotron of a variety of radionuclides and their incorporation in radio-labelled compounds for use in biomedical research. In addition, papers are included which
Clark, John Charles
core  

Identifying active vascular microcalcification by 18F-sodium fluoride positron emission tomography

open access: yesNature Communications, 2015
Vascular calcification is a complex biological process that is a hallmark of atherosclerosis. While macrocalcification confers plaque stability, microcalcification is a key feature of high-risk atheroma and is associated with increased morbidity and ...
Agnese Irkle   +13 more
semanticscholar   +1 more source

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