Journal of Neuroimaging

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Prevalence of White Matter Hyperintensities in a Young Healthy Population
Journal of Neuroimaging - Tập 16 Số 3 - Trang 243-251 - 2006
Ramona O. Hopkins, Callie J. Beck, David L. Burnett, Lindell K. Weaver, Jeff Victoroff, Erin D. Bigler
ABSTRACT Background and Purpose. White matter hyperintensities (WMHs) are bright objects observed in the white matter on brain magnetic resonance (MR) imaging. WMHs are often reported as “normal” findings but may represent pathological changes. The prevalence of WMHs appears to increase with increasing age although both the typical timing and clinical significance of their appearance among medical... hiện toàn bộ
High‐Resolution B‐Mode Ultrasound Reading Methods in the Atherosclerosis Risk in Communities (ARIC) Cohort
Journal of Neuroimaging - Tập 1 Số 4 - Trang 168-172 - 1991
Ward A. Riley, Ralph W. Barnes, M. Gene Bond, Greg Evans, Lloyd E. Chambless, Gerardo Heiss
To measure the association of cardiovascular disease risk factors with carotid artery diameter and thickness of the intima and media in the general population, standardized ultrasound scanning and reading protocols were performed on 15,800 individuals in the multicenter Atherosclerosis Risk in Communities (ARIC) Study. In a randomly selected subset of 855 participants, the mean artery diameter, mi... hiện toàn bộ
Correction for Susceptibility Distortions Increases the Performance of Arterial Spin Labeling in Patients with Cerebrovascular Disease
Journal of Neuroimaging - Tập 26 Số 4 - Trang 436-444 - 2016
Vince I. Madai, Steve Z. Martin, Federico C. von Samson‐Himmelstjerna, Cornelius X. Herzig, Matthias A. Mutke, Carla N Wood, Thoralf Thamm, Sarah Zweynert, M. Bauer, Stefan Hetzer, Matthias Günther, Jan Sobesky
ABSTRACTBACKGROUND AND PURPOSEArterial spin labeling (ASL) is an MRI technique to measure cerebral blood flow (CBF) without the need of exogenous contrast agents and is thus a promising alternative to the clinical standard dynamic susceptibility‐weighted contrast‐enhanced (DSC) perfusion imaging. Latest international guidelines encourage its application in the clinical setting. However, susceptibi... hiện toàn bộ
In vivo Detection of Cortical Microinfarcts on Ultrahigh‐Field MRI
Journal of Neuroimaging - Tập 23 Số 1 - Trang 28-32 - 2013
Yuichiro Ii, Masayuki Maeda, Hirotaka Kida, Ko Matsuo, Akihiro Shindo, Akira Taniguchi, Hidekazu Tomimoto
ABSTRACTBACKGROUND AND PURPOSECortical microinfarcts (CMIs) are detected as small foci restricted to the cerebral cortex in autopsy brains. CMIs are thought to be caused by cerebral amyloid angiopathy (CAA) in the elderly and may be a risk for dementia. We aimed to visualize CMIs, which remain invisible on conventional MRI, using double inversion recovery (DIR) and 3‐dimensional fluid attenuated i... hiện toàn bộ
Different Flow Patterns in Infarction of the Middle Cerebral Artery
Journal of Neuroimaging - Tập 7 Số 2 - Trang 69-77 - 1997
Vera Zbornikova
Difficulties exist in distinguishing patients with currently recanalized mainstem occlusion of the middle cerebral artery (MCA) from branch occlusion. Thirty‐five patients, 8 women and 27 men, at a mean age of 64 ± 15 (standard deviation) years, with clinical signs of infarction in the MCA territory confirmed by computed tomography (CT), were evaluated by repeated clinical and transcranial Doppler... hiện toàn bộ
Neck Vessel Cross‐Sectional Area Measured with MRI: Scan‐Rescan Reproducibility for Longitudinal Evaluations
Journal of Neuroimaging - Tập 28 Số 1 - Trang 48-56 - 2018
Laura Pelizzari, Maria Marcella Laganà, Dejan Jakimovski, Niels Bergsland, Jesper Hagemeier, Giuseppe Baselli, Robert Zivadinov
ABSTRACTBACKGROUND AND PURPOSEThe cross‐sectional area (CSA) of common carotid arteries‐internal carotid arteries (CCA‐ICAs), vertebral arteries (VAs), and internal jugular veins (IJVs) is influenced by aging. However, the neck vessel CSA can be affected by other factors as well, including subject positioning, hydration, and respiration, especially in longitudinal studies. This study aimed to asse... hiện toàn bộ
Brain Volume Changes on Longitudinal Magnetic Resonance Imaging in Normal Older People
Journal of Neuroimaging - Tập 11 Số 4 - Trang 393-400 - 2001
Yong Tang, Gregory T. Whitman, Iván A. López, Robert W. Baloh
ABSTRACT Background and Purpose. The purpose of this study is to investigate the longitudinal age‐related changes in human brain volume using stereological methods. Methods. Sixty‐six older participants (34 men, 32 women, age [mean ± SD] 78.9 ± 3.3 years, range 74–87 years) with normal baseline and follow‐up examinations underwent 2 MRIs (magnetic resonance imaging) of the brain on average 4.4 yea... hiện toàn bộ
Cluster Confidence Index: A Streamline‐Wise Pathway Reproducibility Metric for Diffusion‐Weighted MRI Tractography
Journal of Neuroimaging - Tập 28 Số 1 - Trang 64-69 - 2018
Kesshi Jordan, Bagrat Amirbekian, Anisha Keshavan, Roland G. Henry
ABSTRACTBACKGROUNDDiffusion‐weighted magnetic resonance imaging tractography can be used to create models of white matter fascicles. Anatomical and pathological variability between subjects can drastically alter the tractography output, so standardizing results across a cohort is nontrivial. Furthermore, tractography methods have inherently low reproducibility due to stochasticity (for probabilist... hiện toàn bộ
Spinal Cord Pilomyxoid Astrocytoma: An Unusual Tumor
Journal of Neuroimaging - Tập 17 Số 4 - Trang 371-374 - 2007
Mishal Mendiratta‐Lala, Shehanaz Ellika, Jorge A. Gutiérrez, Suresh Patel, Rajan Jain
ABSTRACT We present the imaging findings of a case of spinal pilomyxoid astrocytoma in a 29‐year‐old woman with history of neck and back pain and weakness of bilateral upper extremities. A contrast‐enhanced magnetic resonance (MR) imaging study revealed an extensive intradural extramedullary lesion occupying most of the thecal sac extending from mid cervical up to the lumbosacral region with exten... hiện toàn bộ
MR Findings of Intrathecal Chemotherapy‐Related Myelopathy in Two Cases: Mimicker of Subacute Combined Degeneration
Journal of Neuroimaging - Tập 17 Số 2 - Trang 184-187 - 2007
C J Lu, Ming Yao, Hon‐Man Liu, Ya‐Fang Chen
ABSTRACTWe report the findings of spinal magnetic resonance imaging (MRI) in 2 patients who had undergone intrathecal chemotherapy and presented with the subacute onset of ascending numbness and weakness. MRI revealed a symmetric hyperintensity at the posterior columns of the spinal cord from the lower cervical region down to the conus medullaris level on T2‐weighted images, and no abnormal enhanc... hiện toàn bộ
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