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Normal Facial Nerve Enhancement on Volumetric Interpolated Breath-hold Examination MRI Sequence.
AJNR Am J Neuroradiol
November 2024
From the Department of Radiology, Mayo Clinic Florida, Jacksonville, FL 32224, USA (N.N., A.B.D., A.A.B.).
Background And Purpose: Enhancement of the facial nerve can be seen on magnetic resonance imaging (MRI) due to its rich arteriovenous plexus. Classically, enhancement of the facial nerve beyond the geniculate ganglion has been described as a normal finding, while enhancement of the canalicular and labyrinthine segments is considered abnormal. We hypothesize facial nerve enhancement of the canalicular and labyrinthine segments is a normal finding on the post-contrast T-weighted, fat-saturated VIBE (volumetric interpolated breath-hold examination) sequence on both 1.
View Article and Find Full Text PDFMR dacryocystography - Optimising a dynamic imaging protocol for patients with epiphora.
Radiography (Lond)
November 2024
Department of Ophthalmology, Sussex Eye Hospital, Eastern Road, Kemptown, Brighton, BN2 5BF, United Kingdom.
Article Synopsis
- The report discusses the development of a non-invasive Magnetic Resonance Dacryocystography (MRDCG) technique for assessing the nasolacrimal drainage system (NLDS), which avoids ionising radiation.
- A protocol was created using a 1.5 Tesla MRI scanner, where gadolinium contrast is slowly infused to visualize the NLDS anatomy and functionality in real-time.
- Results showed that 85% of cases allowed for clear visualization of the NLDS, highlighting the technique's potential, though further comparison with traditional methods is needed.
Unique properties of clinical manifestation and magnetic resonance imaging for differential diagnosis of optic nerve hemangioblastoma.
Eye (Lond)
December 2024
Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University; Beijing Ophthalmology and Visual Sciences Key Laboratory, Beijing, China.
Background: To investigate the unique properties of clinical manifestation and radiological imaging for differential diagnosis of optic nerve hemangioblastoma (ONH) from adult optic nerve glioma (ONG) prior to surgical resection.
Methods: ONH and adult ONG patients were recruited from 2012 to 2022.
Results: A total of seven ONH patients (8 eyes) and 23 adult ONG patients (24 eyes) were assessed.
Radiologic Predictors of Visual Outcome in Myelin Oligodendrocyte Glycoprotein-Related Optic Neuritis.
Ophthalmology
August 2024
Department of Ophthalmology and Vision Sciences, Faculty of Medicine, University of Toronto, Toronto, Canada; Division of Neurology, Department of Medicine, Faculty of Medicine, University of Toronto, Toronto, Canada. Electronic address:
Purpose: This study aimed to determine whether magnetic resonance imaging (MRI) biomarkers are associated with visual prognosis in myelin oligodendrocyte protein (MOG)-associated optic neuritis (ON).
Design: Cross-sectional analysis.
Participants: Patients meeting 2023 international diagnostic criteria for MOG antibody-associated disease who were seen for first episodes of MOG-associated ON at 3 tertiary neuro-ophthalmology practices between January 2017 and July 2023 were enrolled.
The osteocytic actions of glucocorticoids on bone mass, mechanical properties, or perilacunar remodeling outcomes are not rescued by PTH(1-34).
Front Endocrinol (Lausanne)
August 2024
Department of Orthopaedic Surgery, University of California, San Francisco, San Francisco, CA, United States.
Glucocorticoids (GC) and parathyroid hormone (PTH) are widely used therapeutic endocrine hormones where their effects on bone and joint arise from actions on multiple skeletal cell types. In osteocytes, GC and PTH exert opposing effects on perilacunar canalicular remodeling (PLR). Suppressed PLR can impair bone quality and joint homeostasis, including in GC-induced osteonecrosis.
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