Publications by authors named "Daniel Bos"

Background And Objectives: Nonfocal transient neurologic attacks (TNA) have been suggested to increase the risk of stroke, yet the optimal clinical approach of these attacks remains uncertain. We determined whether people who have a nonfocal TNA are at an increased risk of subsequent cardiovascular disease (CVD), akin to the known increased risk of stroke following transient ischemic attack (TIA).

Methods: Within a population-based cohort study among Dutch participants aged 45 years or older, we selected participants who had first-ever TNA, defined as an attack of sudden neurologic symptoms resolving within 24 hours without clear evidence for an alternative diagnosis, during follow-up between 1990 and 2020.

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  • Cerebral hypoperfusion, or reduced blood flow to the brain, may lead to brain injury and degeneration, but its long-term effects, especially in healthier older adults, are not well understood.
  • This study tracked 3,623 healthy older adults over 11 years using brain scans to measure cerebral blood flow (CBF) and cerebrovascular resistance, aiming to examine changes in subclinical brain disease markers like white matter hyperintensities.
  • Results showed that significant changes in CBF and increased cerebrovascular resistance were linked to a higher risk of progression in white matter hyperintensities, suggesting that monitoring blood flow can help identify potential brain health issues in older adults.
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  • - The study explored the relationship between arteriosclerosis, measured by arterial calcification in the heart-brain axis, and cognitive performance over time, using data from the Rotterdam Study with 2368 participants.
  • - Findings showed that higher levels of arterial calcification were linked to poorer initial cognitive performance and a faster decline in cognitive abilities across multiple domains, particularly influenced by calcification in the intracranial carotid artery.
  • - The results suggest that arterial calcification may drive cognitive decline through changes in blood flow before any neurovascular damage occurs, emphasizing the role of vascular health in maintaining cognitive function.
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Background: Embolic stroke of undetermined source (ESUS) may be associated with carotid artery plaques with <50% stenosis. Plaque vulnerability is multifactorial, possibly related to intraplaque hemorrhage (IPH), lipid-rich-necrotic-core (LRNC), perivascular adipose tissue (PVAT), and calcification morphology. Machine-learning (ML) approaches in plaque classification are increasingly popular but often limited in clinical interpretability by black-box nature.

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Complications like acute cellular rejection (ACR) and infection are known risk factors for the development of chronic lung allograft dysfunction, impacting long-term patient and graft survival after lung transplantation (LTx). Differentiating between complications remains challenging and time-sensitive, highlighting the need for accurate and rapid diagnostic modalities. We assessed the ability of exhaled breath analysis using an electronic nose (eNose) to distinguish between ACR, infection, and mechanical complications in LTx recipients (LTR) presenting with suspected complications.

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Background And Purpose: The influence of intracranial arteriosclerosis (ICAR) on acute ischaemic stroke (AIS) prognosis is unclear. This study explored its impact, focusing on ICAR subtypes categorized by intracranial carotid artery calcification (ICAC) patterns: intimal or atherosclerotic versus internal elastic lamina calcification or non-atherosclerotic. The aim was to determine their effect on AIS prognosis in patients undergoing endovascular treatment (EVT).

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  • Calcium deposits can form in various tissues of the human body and are a regulated biological process.
  • These deposits play a role in normal physiological functions but can sometimes lead to health issues.
  • The regulation of calcium deposition is crucial for maintaining tissue health and preventing disorders.
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  • Cerebral small vessel disease (SVD) can lead to various cerebrovascular issues, but research on sex differences in SVD is limited.
  • This study analyzed data from over 20,000 patients with acute ischemic stroke to examine whether the presence and severity of cerebral microbleeds (CMB) and other SVD markers differ between males and females.
  • Results showed that males had more frequent CMB while females had fewer lacunes but higher severe white matter hyperintensities, indicating distinct SVD characteristics based on sex.
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Background: Intracranial arteriosclerosis and cerebral amyloid beta (Aβ) are both involved in the etiology of Alzheimer's disease (AD) dementia, but the direct link between these two pathologies remains elusive.

Methods: In 633 participants (mean age 69 years, 51% women) from the population-based Rotterdam Study, we quantified cerebral Aβ accumulation on amyloid positron emission tomography (PET). We assessed calcification of the intracranial internal carotid (ICAC) and vertebrobasilar arteries (VBAC) as proxies of arteriosclerosis on non-enhanced computed tomography (CT).

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Limited population-based data on the gender differences and association between arteriosclerotic calcification at different sites and atrial fibrillation (AF) exist. We aimed to investigate the (gender-specific) associations between arteriosclerotic calcification at different sites with the risk of AF in the general population. Arteriosclerotic calcification was quantified using computed tomography examinations between 2003 and 2006 in 2,259 participants free of AF from the population-based Rotterdam Study.

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  • - The study explored the connection between migraines and structural brain changes in a sizable middle-aged and elderly population, noting that existing research has conflicting results on this topic.
  • - Using data from the Rotterdam Study, researchers assessed migraine history and conducted MRI scans on nearly 5,000 participants, analyzing brain volumes and markers of small vessel disease while controlling for various factors.
  • - Results revealed no significant differences in brain volume or small vessel disease markers between individuals with and without migraines, indicating that migraines may not be linked to harmful structural brain changes in this population.
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  • Doctors are trying to figure out who is at the highest risk of having another stroke after a TIA or minor stroke by looking at different factors, mainly how blocked someone's carotid arteries are.
  • A new tool called the IMPROVE model has been created to better predict stroke risk by using information from MRI scans and other factors like age and sex.
  • This model has been tested successfully and can help doctors decide who might need surgery to prevent future strokes.
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Background And Objectives: Although several lines of evidence suggest a link between migraine and cardiovascular events, less is known about the association between cardiovascular risk factors (CVRFs) and migraine. This knowledge is clinically important to provide directions on mitigating the cardiovascular risk in patients with migraine. We hypothesized that CVRFs are associated with a higher migraine prevalence.

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Background: Right ventricular failure (RVF) is a significant cause of morbidity and mortality in patients with a left ventricular assist device (LVAD). This study is aimed to investigate the influence of a pectus excavatum on early and late outcomes, specifically RVF, following LVAD implantation.

Methods: A retrospective study was performed, that included patients with a HeartMate 3 LVAD at our tertiary referral center.

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Objectives: This study aims to externally validate a commercially available Computer-Aided Detection (CAD)-system for the automatic detection and characterization of solid, part-solid, and ground-glass lung nodules (LN) on CT scans.

Methods: This retrospective study encompasses 263 chest CT scans performed between January 2020 and December 2021 at a Dutch university hospital. All scans were read by a radiologist (R1) and compared with the initial radiology report.

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Aim: To investigate the utilization of MRI using a MRI liver protocol with extracellular contrast-enhanced series for hepatocellular carcinoma (HCC) surveillance in high-risk patients.

Methods: Consecutive high-risk patients of a western European cohort who underwent repeated liver MRI for HCC screening were included. Lesions were registered according to the Liver Reporting & Data System (LIRADS) 2018.

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  • The study investigates the imaging characteristics in gadoxetic acid-enhanced MRI that differentiate focal nodular hyperplasia (FNH) from hepatocellular adenoma and carcinoma (HCA/HCC), particularly focusing on hyper- or isointensity observed in the hepatobiliary phase.
  • Researchers analyzed data from 124 patients with pathology-proven FNH or HCA/HCC, finding unique imaging traits such as specific patterns and fat content that help distinguish between these liver conditions.
  • The results suggest that if certain imaging characteristics indicative of HCA/HCC are present, further evaluation should be conducted to rule out B-catenin-activated HCA, especially when lesions show high levels of hyper- or isointensity.
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  • - The PARISK study found that carotid plaques with intraplaque hemorrhage (IPH) increase the risk of future ischemic cerebrovascular events, particularly in patients with transient ischemic attacks or strokes.
  • - Researchers analyzed 89 patients with IPH-positive carotid plaques over 5 years, including brain MRI results after 2 years to see if IPH signal intensity ratios (SIR) and volumes correlated with new cerebrovascular events.
  • - The study concluded that neither the IPH SIR nor the volume was significantly associated with the occurrence of future ischemic events or new brain infarcts, indicating other factors may be more influential in predicting these occurrences.
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Background: Increased cerebrovascular morbidity was reported in adults born small for gestational age (SGA) who were treated with growth hormone (GH) during childhood compared to the general population. Yet, previous studies lacked an appropriate control group which is a major limitation. We prospectively studied cerebral white matter hyperintensities (WMHs) in adults born SGA at 12 years after cessation of childhood GH-treatment (SGA-GH), compared to appropriate controls.

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  • * Neuroimaging reveals that many of these genetic variants have widespread effects on brain regions and are linked to various cancers and specific signaling pathways, such as p53 and Wnt.
  • * The findings suggest a connection between the genes that regulate head size and the likelihood of cancer, emphasizing the need for further research on the implications of this relationship.
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Rationale: The pulmonary artery (PA) diameter-to-aorta ratio (PA:A) ratio is a novel marker in cardiovascular imaging for detecting pulmonary hypertension. However, we question the effect of the varying aorta diameter on the ratio, which complicates the interpretation of the PA:A ratio.

Objective: Investigate the variability of the PA:A ratio by examining the correlation between PA:A ratio and aorta diameter and by comparing the associations of the PA diameter, aorta diameters, and PA:A ratio.

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Introduction: The diagnostic workup of stroke doesn't identify an underlying cause in two-fifths of ischemic strokes. Intracranial arteriosclerosis is acknowledged as a cause of stroke in Asian and Black populations, but is underappreciated as such in whites. We explored the burden of Intracranial Artery Calcification (IAC), a marker of intracranial arteriosclerosis, as a potential cause of stroke among white patients with recent ischemic stroke or TIA.

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