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Transmantle pressure under the influence of free breathing: non-invasive quantification of the aqueduct pressure gradient in healthy adults.
Fluids Barriers CNS
January 2025
Medical Image Processing Department, CHU Amiens-Picardie University Hospital, Amiens, France.
Background: The pressure gradient between the ventricles and the subarachnoid space (transmantle pressure) is crucial for understanding CSF circulation and the pathogenesis of certain neurodegenerative diseases. This pressure can be approximated by the pressure difference across the aqueduct (ΔP). Currently, no dedicated platform exists for quantifying ΔP, and no research has been conducted on the impact of breathing on ΔP.
View Article and Find Full Text PDFReal-Time 2D Phase-Contrast MRI to Assess Cardiac- and Respiratory-Driven CSF Movement in Normal Pressure Hydrocephalus.
J Neuroimaging
December 2024
Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA.
Background And Purpose: In idiopathic normal pressure hydrocephalus (iNPH) patients, cerebrospinal fluid (CSF) flow is typically evaluated with a cardiac-gated two-dimensional (2D) phase-contrast (PC) MRI through the cerebral aqueduct. This approach is limited by the evaluation of a single location and does not account for respiration effects on flow. In this study, we quantified the cardiac and respiratory contributions to CSF movement at multiple intracranial locations using a real-time 2D PC-MRI and evaluated the diagnostic value of CSF dynamics biomarkers in classifying iNPH patients.
View Article and Find Full Text PDFSuccessful embolization of aneurysms in deep coma patients with subarachnoid haemorrhage receiving ECMO support: a case report.
Am J Transl Res
November 2024
Department of Radioactive Intervention, Henan No. 3 Provincial People's Hospital Zhengzhou 450006, Henan, China.
ECMO is an advanced technology for extracorporeal respiratory and circulatory support. It involves the extraction of venous blood from the patient's body, which is subsequently oxygenated within an oxygenator (or membrane lung). This oxygen-rich blood is reinfused either into veins or arteries, rapidly compensating for impaired lung and heart functionalities.
View Article and Find Full Text PDFIntegrative Metabolome and Proteome Analysis of Cerebrospinal Fluid in Parkinson's Disease.
Int J Mol Sci
October 2024
Department of Molecular Science and Technology, Ajou University, Suwon 16499, Republic of Korea.
Parkinson's disease (PD) is a common neurodegenerative disorder characterized by the loss of dopaminergic neurons in the substantia nigra. Recent studies have highlighted the significant role of cerebrospinal fluid (CSF) in reflecting pathophysiological PD brain conditions by analyzing the components of CSF. Based on the published literature, we created a single network with altered metabolites in the CSF of patients with PD.
View Article and Find Full Text PDFTowards non-invasive imaging through spinal-cord generated magnetic fields.
Front Med Technol
October 2024
Department of Imaging Neuroscience, Institute of Neurology, University College London, London, United Kingdom.
Non-invasive imaging of the human spinal cord is a vital tool for understanding the mechanisms underlying its functions in both healthy and pathological conditions. However, non-invasive imaging presents a significant methodological challenge because the spinal cord is difficult to access with conventional neurophysiological approaches, due to its proximity to other organs and muscles, as well as the physiological movements caused by respiration, heartbeats, and cerebrospinal fluid (CSF) flow. Here, we discuss the present state and future directions of spinal cord imaging, with a focus on the estimation of current flow through magnetic field measurements.
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