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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2019 (v1)Publication
Background: Brain magnetic resonance imaging (MRI) is the most effective surveillance tool for the detection of asymptomatic progressive multifocal leukoencephalopathy (PML). However, the optimal frequency for routine MRI surveillance is under-investigated. Objective: To understand whether, upon their first MRI appearance, PML lesions present a...
Uploaded on: March 27, 2023 -
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 -
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