Ultra-high-field (UHF) magnetic resonance (MR) scanners, that is, equipment operating at static magnetic field of 7 tesla (7 T) and above, enable the acquisition of data with greatly improved signal-to-noise ratio with respect to conventional MR systems (e.g., scanners operating at 1.5 T and 3 T). The change in tissue relaxation times at UHF...
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2021 (v1)PublicationUploaded on: April 14, 2023
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2017 (v1)Publication
The purpose of the present study is to evaluate the temperature increase due to radio-frequency (RF) exposure in Magnetic Resonance (MR) examinations, by combining electromagnetic/thermal simulations and B1 maps.
Uploaded on: April 14, 2023 -
2021 (v1)Publication
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Uploaded on: October 11, 2023 -
2023 (v1)Publication
: Soma and neurite density image (SANDI) is an advanced diffusion magnetic resonance imaging biophysical signal model devised to probe in vivo microstructural information in the gray matter (GM). This model requires acquisitions that include b values that are at least six times higher than those used in clinical practice. Such high b values are...
Uploaded on: February 14, 2024 -
2024 (v1)Publication
Background and PurposeWe aimed to test whether synthetic T1-weighted imaging derived from a post-contrast Quantitative Transient-state Imaging (QTI) acquisition enabled revealing pathological contrast enhancement in intracranial lesions.MethodsThe analysis included 141 patients who underwent a 3 Tesla-MRI brain exam with intravenous contrast...
Uploaded on: July 3, 2024 -
2024 (v1)Publication
Chemotherapy and radiotherapy are widely used in the treatment of central nervous system tumors and acute lymphocytic leukemia even in the pediatric population. However, such treatments run the risk of a broad spectrum of cognitive and neurological deficits. Even though the correlation with cognitive decline is still not clear,...
Uploaded on: July 3, 2024 -
2023 (v1)Publication
Background The brainstem contains grey matter nuclei and white matter tracts to be identified in clinical practice. The small size and the low contrast among them make their in vivo visualisation challenging using conventional magnetic resonance imaging (MRI) sequences at high magnetic field strengths. Combining higher spatial resolution,...
Uploaded on: January 31, 2024 -
2017 (v1)Publication
Introduction: Susceptibility-weighted imaging of the substantia nigra (SN) both at 7 and 3 Tesla (T) has shown high accuracy in distinguishing patients with Parkinson's disease (PD) and healthy subjects (HS). Patients with rapid eye movement (REM) behavior disorder (RBD) can develop synucleinopathies, and such risk is higher with dopamine...
Uploaded on: April 14, 2023 -
2024 (v1)Publication
This article provides recommendations for implementing QSM for clinical brain research. It is a consensus of the International Society of Magnetic Resonance in Medicine, Electro-Magnetic Tissue Properties Study Group. While QSM technical development continues to advance rapidly, the current QSM methods have been demonstrated to be repeatable...
Uploaded on: July 3, 2024