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Hemodynamic Evaluation of Residual Cavity Growth in a Basilar-Tip Cerebral Aneurysm Post-coiling Using Silent Magnetic Resonance Angiography (MRA): A Case Report.
Cureus
December 2024
Department of Neurological Surgery, Ryofukai Satoh Neurosurgical Hospital, Fukuyama, Hiroshima, JPN.
Coil embolization of cerebral aneurysms often encounters challenges in achieving complete filling of the aneurysm sac due to complex shapes and hemodynamic factors, frequently resulting in the formation of a residual cavity (RC) at the aneurysm neck. The hemodynamic mechanisms underlying RC formation and growth, however, remain poorly understood. Computational fluid dynamics (CFD) analysis, combined with silent MRA free from contrast agents and metal artifacts, offers a promising approach to elucidate these mechanisms, potentially enhancing the clinical management of cerebral aneurysms post-coiling.
View Article and Find Full Text PDFBackground: Quadrilateral space syndrome is a painful disorder of the shoulder caused by static or dynamic entrapment of the axillary nerve and the posterior humeral circumflex artery. It was first described in 1983; however, it is an uncommon syndrome that initially presents with nonspecific shoulder pain or selective deltoid atrophy, and diagnosis is often delayed owing to its rarity. Young athletes of overhead sports are more commonly affected by this syndrome.
View Article and Find Full Text PDFComparison of silent MRA and time-of-flight MRA in the depiction and grading of brain arteriovenous malformations.
Quant Imaging Med Surg
December 2024
Department of Radiology and Nuclear Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China.
Background: Preliminary small-sample studies suggest that silent magnetic resonance angiography (MRA) has an advantage over time-of-flight MRA (TOF MRA) in the characterization of brain arteriovenous malformation (BAVM), but did not examine whether the imaging performance of silent MRA was affected by the intrinsic features of BAVM or common clinical factors. This study sought to compare silent MRA and TOF MRA in terms of the visualization and grading of BAVMs in various clinical settings.
Methods: In total, 85 participants (50 males, 35 females; mean age: 33.
A pictorial neuroradiological review of brain vascular abnormalities in patients with kidney disease.
Behav Brain Res
March 2025
Unit of Neurology, Neurophysiology, Neurobiology and Psychiatry, Università Campus Bio-Medico of Rome, Rome, Italy; Fondazione Policlinico Universitario Campus Bio-Medico, Rome, Italy.
Article Synopsis
- - There is a recognized connection between cerebrovascular disease and chronic kidney disease, where brain issues in kidney patients may not show symptoms or could be detected through imaging tests.
- - Initial brain damage in these patients is from small vessel issues, leading to various structural and microstructural changes visible on MRIs, which can increase risks for stroke and cognitive problems like dementia.
- - Patients with advanced kidney disease, especially those on dialysis, face higher risks of serious brain complications, yet there are no clear guidelines for preventing these issues, highlighting the need for more research on using neuroimaging in diagnosis.
Performance Assessment of an Electrostatic Filter-Diverter Stent Cerebrovascular Protection Device: Evaluation of a Range of Potential Electrostatic Fields Focusing on Small Particles.
Bioengineering (Basel)
November 2024
Barcelona Supercomputing Center, Computer Applications in Science and Engineering, 08034 Barcelona, Spain.
Silent Brain Infarction (SBI) is increasingly recognized in patients with cardiac conditions, particularly Atrial Fibrillation (AF) in elderly patients and those undergoing Transcatheter Aortic Valve Implantation (TAVI). While these infarcts often go unnoticed due to a lack of acute symptoms, they are associated with a threefold increase in stroke risk and are considered a precursor to ischemic stroke. Moreover, accumulating evidence suggests that SBI may contribute to the development of dementia, depression, and cognitive decline, particularly in the elderly population.
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