Search results for "MRI"

Non cirrhotic liver: the TDTU (“too difficult to understand”) hypervascular lesions

2009

DETECTION AND CHARACTERIZATION OF FOCAL LESIONS IN HEPATIC STEATOSIS: HELICAL CT OR MRI?

2004

Focal liver lesions in patients with cavernous transformation of the portal vein: diagnosis and MR features.

2008

Localizzazione ipocentrale e clustering degli eventi sismici registrati durante la campagna OBS condotta nel Tirreno meridionale

2011

Folate targeted coated SPIONs as efficient tool for MRI

2017

The development of more sensitive diagnostic tools allowing an early-stage and highly efficient medical imaging of tumors remains a challenge. Magnetic nanoparticles seem to be the contrast agents with the highest potential, if properly constructed. Therefore, in this study, hybrid magnetic nanoarchitectures were developed using a new amphiphilic inulin-based graft copolymer (INU-LAPEG-FA) as coating material for 10-nm spinel iron oxide (magnetite, Fe3O4) superparamagnetic nanoparticles (SPION). Folic acid (FA) covalently linked to the coating copolymer in order to be exposed onto the nanoparticle surface was chosen as the targeting agent because folate receptors are upregulated in many can…

Conventional MRI-Derived Biomarkers of Adult-Type Diffuse Glioma Molecular Subtypes: A Comprehensive Review.

2022

The introduction of molecular criteria into the classification of diffuse gliomas has added interesting practical implications to glioma management. This has created a new clinical need for correlating imaging characteristics with glioma genotypes, also known as radiogenomics or imaging genomics. Although many studies have primarily focused on the use of advanced magnetic resonance imaging (MRI) techniques for radiogenomics purposes, conventional MRI sequences remain the reference point in the study and characterization of brain tumors. A summary of the conventional imaging features of glioma molecular subtypes should be useful as a tool for daily diagnostic brain tumor management. Hence, t…

Identification of proprioceptive thalamocortical tracts in children: comparison of fMRI, MEG, and manual seeding of probabilistic tractography

2022

Publisher Copyright: © The Author(s) 2022. Published by Oxford University Press. Studying white matter connections with tractography is a promising approach to understand the development of different brain processes, such as proprioception. An emerging method is to use functional brain imaging to select the cortical seed points for tractography, which is considered to improve the functional relevance and validity of the studied connections. However, it is unknown whether different functional seeding methods affect the spatial and microstructural properties of the given white matter connection. Here, we compared functional magnetic resonance imaging, magnetoencephalography, and manual seedin…

Altered EEG Oscillatory Brain Networks During Music-Listening in Major Depression

2021

To examine the electrophysiological underpinnings of the functional networks involved in music listening, previous approaches based on spatial independent component analysis (ICA) have recently been used to ongoing electroencephalography (EEG) and magnetoencephalography (MEG). However, those studies focused on healthy subjects, and failed to examine the group-level comparisons during music listening. Here, we combined group-level spatial Fourier ICA with acoustic feature extraction, to enable group comparisons in frequency-specific brain networks of musical feature processing. It was then applied to healthy subjects and subjects with major depressive disorder (MDD). The music-induced oscil…

Affect regulation, mental health disorders, and maladaptive brain responses in music listening : a correlational study

2014

Affect regulation may be defined as a process by which an individual maintains or modifies his or her mood or emotional state, by conscious or automatic processes. Adequate affect regulation may play an important role in mitigating or preventing mental illness, which is a widespread, inadequately treated and inadequately understood phenomenon. Music, which is known to express and induce emotions, may be used for affect regulation in a variety of ways, both self-directed and in therapeutic contexts. The effectiveness, however, of different uses of music in affect regulation is not yet understood. Both psychological testing and neuro-imaging were used to explore the relationship between indiv…

Pirmsskolas vecuma bērna kritiskās domāšanas un problēmrisināšanas attīstība matemātisko priekšstatu veidošanās procesā

2022

Bakalaura darba nosaukums: Pirmsskolas vecuma bērna kritiskās domāšanas un problēmrisināšanas attīstība matemātisko priekšstatu veidošanās procesā pirmsskolas iestādē Pētījuma mērķis: 5-6 gadīgu bērnu kritiskās domāšanas un problēmrisināšanas attīstības iespējas matemātikas nodarbībās pirmsskolas pedagoģiskajā procesā. Teorētiskā daļā aplūkots: •Kritiskās domāšanas un problēmrisināšanas būtība. Kā šo caurviju prasmi attīstot, attīstās bērna personība. •Pirmsskolas vecuma bērnu kritiskās domāšanas un problēmrisināšanas attīstība matemātikas mācību kontekstā. Kā veicināt bērnu kritisko domāšanu un problēmrisināšanu matemātikas mācību jomā. Praktiskajā daļā: Tika pētīti vidējā vecuma pirmsskol…