This case underscores the importance of treating neurological deficits of an acute stroke presentation despite initial negative diffusion-weighted imaging (DWI), especially in the acute phase when there is high clinical suspicion of stroke. Additionally, it highlights the appropriate use of a WAKE-UP protocol for patients that present with stroke symptoms without a well-defined inception time. A 71-year-old female presented to the emergency department with symptoms of dizziness and double vision upon wake-up. While clinical exam findings revealed left intranuclear ophthalmoplegia (INO) and inability to ambulate due to gait ataxia, magnetic resonance imaging (MRI) was negative for acute stroke. Despite negative DWI MRI, this patient's clinical exam findings of a left INO and gait ataxia were indicative of an ischemic stroke localizing to the medial longitudinal fasciculus (MLF), and the patient received thrombolytics. Repeat MRI about 48 h later revealed an acute infarct in the left midbrain with a DWI lesion in the MLF.
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http://dx.doi.org/10.14740/jmc4241 | DOI Listing |
Brain Lang
January 2025
Key Laboratory of Brain Functional Genomics (MOE & STCSM), Affiliated Mental Health Center (ECNU), Institute of Brain and Education Innovation, School of Psychology and Cognitive Science, East China Normal University, Shanghai 200062, China; Shanghai Changning Mental Health Center, Shanghai 200335, China; Shanghai Center for Brain Science and Brain-Inspired Technology, East China Normal University, China; NYU-ECNU Institute of Brain and Cognitive Science, New York University, Shanghai, China. Electronic address:
Hemispheric specialization of different functions is proposed to confer evolutionary benefits, yet the behavioral impacts of lateralization and its cognitive and neural mechanisms remain unclear. This study investigated the effect of lateralization pattern between language and spatial attention on dual-task performance and its association with callosal connectivity. Functional lateralization was assessed using fMRI verbal fluency and landmark tasks, and interhemispheric connections were evaluated through diffusion-weighted imaging.
View Article and Find Full Text PDFInflamm Bowel Dis
January 2025
Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
Background: We previously identified circulating and MRI biomarkers associated with the surgical management of Crohn's disease (CD). Here we tested associations between these biomarkers and ileal resection inflammation and collagen content.
Methods: Fifty CD patients undergoing ileal resection were prospectively enrolled at 4 centers.
Brain Sci
January 2025
Department of Neurology, National Hospital for Neurology and Neurosurgery, London WC1N 3BG, UK.
Acute vertigo or dizziness is a frequent presentation to the emergency department (ED), making up between 2.1% and 4.4% of all consultations.
View Article and Find Full Text PDFCureus
December 2024
Internal Medicine, Belgaum Institute of Medical Science, Belgaum, IND.
Several studies explored the application of artificial intelligence (AI) in magnetic resonance imaging (MRI)-based rectal cancer (RC) staging, but a comprehensive evaluation remains lacking. This systematic review aims to review the performance of AI models in MRI-based RC staging. PubMed and Embase were searched from the inception of the database till October 2024 without any language and year restrictions.
View Article and Find Full Text PDFQuant Imaging Med Surg
January 2025
Department of Imaging and Interventional Radiology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China.
Background: Diffusion-derived 'vessel density' (DDVD) is a surrogate of the area of micro-vessels per unit tissue. DDVD is calculated according to: DDVD (b0b50) = Sb0/ROIarea0 - Sb50/ROIarea50, where Sb0 and Sb50 refer to the tissue signal when is 0 or 50 s/mm. Due to the complexity of pre-eclampsia (PE), even a combination of risk factors and available tests cannot accurately diagnose or predict PE.
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