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NMR Biomed
March 2025
Department of Radiology, Clínica Universidad de Navarra, Pamplona, Spain.
Hemodynamic measurements such as cerebral blood flow (CBF) and cerebrovascular reactivity (CVR) can provide useful information for the diagnosis and characterization of brain tumors. Previous work showed that arterial spin labeling (ASL) in combination with vasoactive stimulation enabled simultaneous non-invasive evaluation of both parameters, however this approach had not been previously tested in tumors. The aim of this work was to investigate the application of this technique, using a pseudo-continuous ASL (PCASL) sequence combined with breath-holding at 3 T, to measure CBF and CVR in high-grade gliomas and metastatic lesions, and to explore differences across tumoral-peritumoral regions and tumor types.
View Article and Find Full Text PDFMalar J
January 2025
West African Centre for Cell Biology of Infectious Pathogens, Accra University of Ghana, Volta Rd, Accra, Ghana.
Background: Malaria remains a leading cause of death worldwide, claiming over 600,000 lives each year. Over 90% of these deaths, mostly among children under 5 years, occur in sub-Saharan Africa and are caused by Plasmodium falciparum. The merozoites stage of the parasite, crucial for asexual development invade erythrocytes through ligand-receptor interactions.
View Article and Find Full Text PDFRev Esp Anestesiol Reanim (Engl Ed)
January 2025
Unidad de Cuidados Intensivos Pediátricos, Hospital Universitario Virgen del Rocío, Sevilla, Spain.
Background And Objective: Low cardiac output syndrome (LCOS) is the most common complication after cardiac surgery in children with congenital heart disease (CHD). The aim of this study was to assess the predictive value of serum inorganic phosphorus (SIPL) as an indicator of LCOS in the postoperative period.
Materials And Methods: From June 2018 to December 2019, a single-center prospective study was conducted in patients with CHD undergoing surgery who required extracorporeal circulation (ECC).
BMC Med Imaging
January 2025
Department of Intervention, The First Affiliated Hospital of China Medical University,No.155 The Nanjing North street, Heping District, Shenyang, Liaoning, 110000, P.R. China.
Objective: This study aimed to evaluate the diagnostic value of ColorViz fused images from multi-phase computed tomography angiography (mCTA) using GE Healthcare's FastStroke software for newly diagnosed cerebral infarctions in patients with acute ischemic stroke (AIS).
Methods: A total of 106 AIS patients with unilateral anterior circulation occlusion were prospectively enrolled. All patients underwent mCTA scans during the arterial peak phase, venous peak phase, and venous late phase.
J Gerontol A Biol Sci Med Sci
December 2024
GENUD Toledo Research Group, Faculty of Sport Sciences, University of Castilla-La Mancha, Toledo, Spain.
Mean middle cerebral artery velocity (MCAv) and the pulsatility index (PI), at rest and in response to exercise, are important markers of cerebrovascular health status in middle-aged adults, when vascular decline assumes substantial relevance. Thus, this study aimed to describe and compare the responses of MCAv and PI to incremental exercise. Two hundred and forty-eight volunteers (50-58 years, 55% women) completed a ramp test on a cycle-ergometer.
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