Results 111 to 120 of about 2,889,708 (423)

Introduction to Brain and Medical Images [PDF]

open access: yesarXiv, 2021
This article is based on the first chapter of book Chung (2013), where brain and medical images are introduced. The most widely used brain imaging modalities are magnetic resonance images (MRI), functional-MRI (fMRI) and diffusion tensor images (DTI). A brief introduction to each imaging modality is explained.
arxiv  

A comprehensive literatures update of clinical researches of superparamagnetic resonance iron oxide nanoparticles for magnetic resonance imaging.

open access: yesQuantitative Imaging in Medicine and Surgery, 2017
This paper aims to update the clinical researches using superparamagnetic iron oxide (SPIO) nanoparticles as magnetic resonance imaging (MRI) contrast agent published during the past five years.
Y. Wáng, J. Idee
semanticscholar   +1 more source

Enhanced analysis of gating latency in 0.35T MR‐linac through innovative time synchronization of a motion phantom and plastic scintillation detector

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study aims to evaluate how different gantry angles, breathing rates (BPM), cine image speeds, and tracking algorithms affect beam on/off latency and the subsequent impact on target dose for a 0.35T MR‐Linac with a 6 MV FFF beam.
Mateb Al Khalifa   +4 more
wiley   +1 more source

Object-related activity revealed by functional magnetic resonance imaging in human occipital cortex.

open access: yesProceedings of the National Academy of Sciences of the United States of America, 1995
The stages of integration leading from local feature analysis to object recognition were explored in human visual cortex by using the technique of functional magnetic resonance imaging. Here we report evidence for object-related activation.
R. Malach   +9 more
semanticscholar   +1 more source

FPGA based digital signal processing for EPR spectroscopy with an application to MRI [PDF]

open access: yes, 2011
Electron Paramagnetic Resonance (EPR), a magnetic resonance technique similar to nuclear magnetic resonance, detects paramagnetic species such as free radicals.
Duraiswamy, Punithavathi
core  

Triple-Modal Imaging of Magnetically-Targeted Nanocapsules in Solid Tumours In Vivo [PDF]

open access: yes, 2016
Triple-modal imaging magnetic nanocapsules, encapsulating hydrophobic superparamagnetic iron oxide nanoparticles, are formulated and used to magnetically target solid tumours after intravenous administration in tumour-bearing mice.
Al-jamal, Khuloud T.   +12 more
core   +2 more sources

Quantitative quality control of 3D water tank using image analysis

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Background and objective Accurate beam data acquisition using three‐dimensional (3D) water tanks is essential for beam commissioning and quality control (QC) in clinical radiation therapy. This study introduces a novel method for quantitative QC of the system, utilizing MV images and webcam videos.
Yuki Tanimoto   +9 more
wiley   +1 more source

Development for Hardware for Programming of Spatial Magnetic Field Distributions in Nuclear Magnetic Resonance and Magnetic Resonance Imaging [PDF]

open access: yesarXiv, 2012
The proposal of a project aimed on a design of hardware for programming 3D Magnetic Field shapes over sample volume in NMR and MRI is described.
arxiv  

Charged Particle Resonance In Induction Field [PDF]

open access: yesPhys. Plasmas 1 June 2024; 31 (6): 062104
Starting from First Principles, the space charge manipulation of charged particles in an induction field in free space based on an unique Magnetic field strength and its oscillation Frequency relationship is demonstrated numerically and theoretically. The Larmor precession frequency for a time varying magnetic field, instead of conventionally followed ...
arxiv   +1 more source

Field-Cycling Magnetic Resonance Imaging [PDF]

open access: yes, 2013
Non peer reviewedPublisher ...
Broche, Lionel   +5 more
core  

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