Eclampsia is a rare condition that is peculiar to pregnant and puerperal women, and its pathophysiology still remains unclear. We conducted a 90-day radiological follow-up of a 29-year-old primigravida who developed eclampsia at 41 weeks of gestation. On admission, magnetic resonance imaging (MRI) showed vasogenic edema predominantly in the parietal and occipital lobes; however with in 2 weeks, these lesions had disappeared. Although single-photon emission CT (SPECT) scanning showed hyperperfusion on day 4, hypoperfusion was shown to be in the right occipital lobe on days 11 and 90. These findings reveal the various changes in cerebral vasculature during the acute phase of eclampsia.
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Cardiovasc Diagn Ther
December 2024
Department of Cardiovascular Medicine, National Cerebral & Cardiovascular Center, Suita, Japan.
Background: The Society of Cardiovascular Angiography and Intervention (SCAI) has defined 5 stages of cardiogenic shock (CS). In patients with acute myocardial infarction (AMI) who initially present in stable hemodynamic condition (SCAI CS stage: A or B), CS stages could deteriorate despite therapeutic management. However, deterioration of SCAI CS stages after AMI remains to be fully characterized.
View Article and Find Full Text PDFJ Biomech Eng
January 2025
State Key Laboratory of Clean Energy Utilization, Zhejiang University, Yuquan Campus, 38 Zheda Road, Hangzhou 310027, Zhejiang, China; Shanghai Institute for Advanced Study of Zhejiang University, Zhangjiang Guochuang Center phase, No.799, Dangui Road, Shanghai 200120, China.
The carotid and vertebral arteries are principal conduits for cerebral blood supply and are common sites for atherosclerotic plaque formation. To date, there has been extensive clinical and hemodynamic reporting on carotid arteries; however, studies focusing on the hemodynamic characteristics of the vertebral artery (VA) are notably scarce. This article presents a systematic analysis of the impact of VA diameter and the angle of divergence from the subclavian artery (SA) on hemodynamic properties, facilitated by the construction of an idealized VA geometric model.
View Article and Find Full Text PDFNeuroradiol J
January 2025
Canon Stroke and Vascular Research Center, University at Buffalo, Buffalo, NY, USA.
This study evaluates the efficacy of deep learning models in identifying infarct tissue on computed tomography perfusion (CTP) scans from patients with acute ischemic stroke due to large vessel occlusion, specifically addressing the potential influence of varying noise reduction techniques implemented by different vendors. We analyzed CTP scans from 60 patients who underwent mechanical thrombectomy achieving a modified thrombolysis in cerebral infarction (mTICI) score of 2c or 3, ensuring minimal changes in the infarct core between the initial CTP and follow-up MR imaging. Noise reduction techniques, including principal component analysis (PCA), wavelet, non-local means (NLM), and a no denoising approach, were employed to create hemodynamic parameter maps.
View Article and Find Full Text PDFMed Sci Monit
January 2025
Department of Rehabilitation, Guizhou Medical University, Guiyang, Guizhou, China.
BACKGROUND Swallowing is a complex behavior involving the musculoskeletal system and higher-order brain functions. We investigated the effects of different modalities of repetitive transcranial magnetic stimulation (rTMS) on the unaffected hemisphere and observed correlation between suprahyoid muscle activity and cortical activation in unilateral stroke patients when swallowing saliva, based on functional near-infrared spectroscopy (fNIRS). MATERIAL AND METHODS From November 2022 to March 2023, twenty-five patients with unilateral stroke were screened using computed tomography or magnetic resonance imaging and identified via a video fluoroscopic swallow study.
View Article and Find Full Text PDFActa Neurochir (Wien)
January 2025
Division of Neurosurgery, Beth Israel Deaconess Medical Center, Harvard Medical School, 110 Francis Street , Boston, MA, 02215, USA.
Background: Variability in long-term endovascular treatment outcomes for intracranial aneurysms has prompted questions regarding the effects of these treatments on aneurysm hemodynamics. Endovascular techniques disrupt aneurysmal blood flow and shear, but their influence on intra-aneurysmal pressure remains unclear. A better understanding of aneurysm pressure effects may aid in predicting outcomes and guiding treatment decisions.
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