AI Article Synopsis
Article Abstract
Recent studies have shown that in certain cases, cardiac and respiratory rate fluctuations in BOLD-weighted MRI time courses may be an artifact unique to rapid sampled acquisitions and may not be present in longer repetition-time acquisitions. The implication of this is that, in these cases, cardiac and respiratory rate fluctuations are not aliased into data that undersample these effects and do not affect the resulting time course measurements. In this study, we show that these cases are specific to regions of large cerebrospinal fluid content and are not generally true for gray matter regions of the brain. We demonstrate that in many brain regions of interest, these fluctuations are directly observed as BOLD fluctuations and thus will affect measurements that undersample these effects.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.mri.2003.08.003 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Prediction of pre-eclampsia using maternal hemodynamic parameters at 12 + 0 to 15 + 6 weeks.
Ultrasound Obstet Gynecol
January 2025
Department of Obstetrics and Gynaecology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, SAR, China.
Objectives: To compare the maternal hemodynamic profile at 12 + 0 to 15 + 6 weeks' gestation in women who subsequently developed pre-eclampsia (PE) and those who did not, and to assess the screening performance of maternal hemodynamic parameters for PE in combination with the Fetal Medicine Foundation (FMF) triple test, including maternal factors (MF), mean arterial pressure (MAP), uterine artery pulsatility index and placental growth factor.
Methods: This was a prospective case-control study involving Chinese women with a singleton pregnancy who underwent preterm PE screening at 11 + 0 to 13 + 6 weeks' gestation using the FMF triple test, between February 2020 and February 2023. Women identified as being at high risk (≥ 1:100) for preterm PE by the FMF triple test were matched 1:1 with women identified as low risk (< 1:100) for maternal age ± 3 years, maternal weight ± 5 kg and date of screening ± 14 days.
Incidence of hospital-acquired infections due to carbapenem-resistant Enterobacterales and Pseudomonas aeruginosa in critically ill patients in Italy: a multicentre prospective cohort study.
Crit Care
January 2025
Department of Medical and Surgical Sciences, Alma Mater Studiorum, University of Bologna, Bologna, Italy.
Background: Carbapenem-Resistant Gram-Negative Bacteria, including Carbapenem-Resistant Enterobacterales (CRE) and Carbapenem-Resistant Pseudomonas aeruginosa (CRPA), are common causes of infections in intensive care units (ICUs) in Italy.
Objective: This prospective observational study evaluated the epidemiology, management, microbiological characterization, and outcomes of hospital-acquired CRE or CRPA infections treated in selected ICUs in Italy.
Methods: The study included patients with hospital-acquired infections due to CRE and CRPA treated in 20 ICUs from June 2021 to February 2023.
Objectives: To analyze the clinical and biological characteristics and to evaluate the risk factors associated with the mortality of patients with COVID-19 in Commune IV of the District of Bamako.
Methods: The cohort consisted of COVID-19 patients managed from March 2020 to June 2022 at the Bamako Dermatology Hospital and the Pasteur Polyclinic in Commune IV in Bamako. The studied variables were sociodemographic, clinical, and biological.
Acute Sophora alkaloid poisoning in Hong Kong.
Toxicon
January 2025
Department of Emergency Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Postal address: G/F, Hong Kong Jockey Club Building for Interdisciplinary Research, 5 Sassoon Road, Pokfulam, Hong Kong Special Administrative Region China. Electronic address:
Sophora alkaloids, including matrine, oxymatrine, and sophoridine, are quinolizidines found in plants used in traditional Chinese medicine such as Sophora flavescens and Sophora tonkinensis. Reports on acute Sophora alkaloid poisoning in humans outside of mainland China are lacking. This study aimed to characterize the clinical presentations, management, and outcomes of acute poisoning involving Sophora alkaloids in Hong Kong.
View Article and Find Full Text PDFOutcomes of acute pericarditis with an inflammatory phenotype.
Int J Cardiol
January 2025
Cardiology and Cardiothoracic Department, University Hospital "Santa Maria della Misericordia" (ASUFC) Udine, Italy.
Background: Patients with pericarditis may show elevation of C-reactive protein (CRP) and pericardial effusion at presentation. There are limited data on the prognostic implications of this inflammatory phenotype.
Objectives: Aim of the present study is to evaluate the outcome of the inflammatory phenotype in a cohort of patients with acute pericarditis.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!