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Ironing out differences in attenuation and blooming artifact in acute stroke thrombi.
Sci Rep
January 2025
Medical Physics, Clinic for Radiology, University of Münster and University Hospital of Münster, 48149, Münster, Albert-Schweitzer-Campus 1, Building A1, Germany.
This study aims to improve our understanding of acute ischemic stroke clot imaging by integrating CT attenuation information with MRI susceptibility signal of thrombi. For this proof-of-principle experimental study, fifty-seven clot analogs were produced using ovine venous blood with a broad histological spectrum. Each clot analog was analyzed to determine its RBC content and chemical composition, including water, Fe III, sodium, pH, and pO2.
View Article and Find Full Text PDFDouble-quantum filtered Na NMR and MRI: Selective detection of ordered sodium in an inhomogeneous B field.
J Magn Reson
November 2024
Sir Peter Mansfield Imaging Centre, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom.
Double-quantum filtered Na NMR experiments with one or two "magic angle" (54.7°) pulses in the filter step are widely used for selective observation of sodium ions that are interacting with ordered biological structures ("ordered sodium") and hence exhibit a distribution of quadrupolar splittings in their NMR spectrum. This approach has recently been extended to Na MRI where the conventional experiment has been modified, omitting the 180° pulse to reduce the absorption of radiofrequency energy during human studies.
View Article and Find Full Text PDFTissue sodium in patients with rheumatoid arthritis: a novel potential driver of hypertension in autoimmunity.
Sci Rep
December 2024
Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA.
Patients with rheumatoid arthritis (RA) have increased hypertension. Tissue sodium may contribute to development and progression of hypertension through immune cell activation. This study aimed to determine if skin sodium content is: 1) higher in RA versus control participants, and 2) associated with blood pressure and disease activity.
View Article and Find Full Text PDFCase Report: Avoiding misdiagnosis in amyloidosis-navigating transthyretin genopositivity and monoclonal gammopathy in a patient with advanced heart failure and spinal stenosis.
Front Cardiovasc Med
December 2024
Division of Hematology-Oncology, Department of Medicine, Tufts Medical Center, Boston, MA, United States.
Background: A 63-year-old Black woman presented with progressive exertional dyspnea and chronic lower back pain. The course and findings in her case are instructive.
Case Report: Family history was notable for cardiac deaths.
Mechanisms of Neurosyphilis-Induced Dementia: Insights into Pathophysiology.
Neurol Int
December 2024
Department of Obstetrics, Gynecology and Reproductive Sciences, School of Medicine, University of Miami Miller, Miami, FL 33136, USA.
Neurosyphilis-induced dementia represents a severe manifestation of tertiary syphilis, characterized by cognitive and neuropsychiatric impairments. This condition arises from the progression of syphilis to the central nervous system, where the spirochete causes damage through invasion, chronic inflammation, and neurodegeneration. The pathophysiology involves chronic inflammatory responses, direct bacterial damage, and proteinopathies.
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