Intracranial Atherosclerosis Assessed with 7-T MRI: Evaluation of Patients with Ischemic Stroke or Transient Ischemic Attack. 2020

Arjen Lindenholz, and Anja G van der Kolk, and Irene C van der Schaaf, and H Bart van der Worp, and Anita A Harteveld, and Nikki Dieleman, and Michiel L Bots, and Jeroen Hendrikse
From the Department of Radiology (A.L., A.G.v.d.K., I.C.v.d.S., A.A.H., N.D., J.H.), Department of Neurology and Neurosurgery, Brain Center Rudolf Magnus (H.B.v.d.W.), and Julius Center for Health Sciences and Primary Care (M.L.B.), University Medical Center Utrecht, Utrecht University, Postbox 85500, 3508 GA Utrecht, the Netherlands.

Background Intracranial atherosclerosis is an important cause of ischemic stroke and is associated with several vascular risk factors. Current imaging is mainly based on the assessment of luminal narrowing rather than abnormalities in the vessel wall. Purpose To investigate the relationship between vascular risk factors and atherosclerotic lesion burden of intracranial arteries assessed with vessel wall MRI at 7 T in participants with ischemic stroke or transient ischemic attack (TIA). Materials and Methods In this prospective study (trial identification number: NTR2119; www.trialregister.nl), study participants who presented with ischemic stroke or TIA of the anterior circulation between December 2009 and September 2017 underwent pre- and postcontrast 7-T vessel wall MRI within 3 months of symptom onset. All large arteries of the intracranial circulation were assessed for number, location, and enhancement of vessel wall lesions. Generalized estimating equations for Poisson regression were used to investigate the relationship between vascular risk factors and number or enhancement of vessel wall lesions. Results Ninety participants (52 men; mean age, 60 years) were evaluated. Increasing age (relative risk [RR], 1.02; 95% confidence interval [CI]: 1.01, 1.03), hypertension (RR, 1.46; 95% CI: 1.06, 2.02), diabetes mellitus (RR, 1.67; 95% CI: 1.20, 2.33), and a higher multivariable vascular risk score (Second Manifestations of Arterial Disease risk score) (RR, 1.01; 95% CI: 1.00, 1.02) were associated with a higher number of vessel wall lesions in the anterior circulation. Contrast material-enhancing vessel wall lesions were associated only with increasing age (RR, 1.03; 95% CI: 1.01, 1.05). No association was found between smoking and the number of vessel wall lesions. Conclusion Except for smoking, traditional common cardiovascular risk factors were associated with a higher number and enhancement of intracranial vessel wall lesions at 7-T MRI in individuals evaluated after ischemic stroke or transient ischemic attack. Published under a CC BY 4.0 license. Online supplemental material is available for this article.

UI MeSH Term Description Entries
D008279 Magnetic Resonance Imaging Non-invasive method of demonstrating internal anatomy based on the principle that atomic nuclei in a strong magnetic field absorb pulses of radiofrequency energy and emit them as radiowaves which can be reconstructed into computerized images. The concept includes proton spin tomographic techniques. Chemical Shift Imaging,MR Tomography,MRI Scans,MRI, Functional,Magnetic Resonance Image,Magnetic Resonance Imaging, Functional,Magnetization Transfer Contrast Imaging,NMR Imaging,NMR Tomography,Tomography, NMR,Tomography, Proton Spin,fMRI,Functional Magnetic Resonance Imaging,Imaging, Chemical Shift,Proton Spin Tomography,Spin Echo Imaging,Steady-State Free Precession MRI,Tomography, MR,Zeugmatography,Chemical Shift Imagings,Echo Imaging, Spin,Echo Imagings, Spin,Functional MRI,Functional MRIs,Image, Magnetic Resonance,Imaging, Magnetic Resonance,Imaging, NMR,Imaging, Spin Echo,Imagings, Chemical Shift,Imagings, Spin Echo,MRI Scan,MRIs, Functional,Magnetic Resonance Images,Resonance Image, Magnetic,Scan, MRI,Scans, MRI,Shift Imaging, Chemical,Shift Imagings, Chemical,Spin Echo Imagings,Steady State Free Precession MRI
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D011446 Prospective Studies Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group. Prospective Study,Studies, Prospective,Study, Prospective
D002537 Intracranial Arteriosclerosis Vascular diseases characterized by thickening and hardening of the walls of ARTERIES inside the SKULL. There are three subtypes: (1) atherosclerosis with fatty deposits in the ARTERIAL INTIMA; (2) Monckeberg's sclerosis with calcium deposits in the media and (3) arteriolosclerosis involving the small caliber arteries. Clinical signs include HEADACHE; CONFUSION; transient blindness (AMAUROSIS FUGAX); speech impairment; and HEMIPARESIS. Cerebral Arteriosclerosis,Intracranial Atherosclerosis,Cerebral Atherosclerosis,Arterioscleroses, Cerebral,Arterioscleroses, Intracranial,Arteriosclerosis, Cerebral,Arteriosclerosis, Intracranial,Atheroscleroses, Cerebral,Atheroscleroses, Intracranial,Atherosclerosis, Cerebral,Atherosclerosis, Intracranial,Cerebral Arterioscleroses,Cerebral Atheroscleroses,Intracranial Arterioscleroses,Intracranial Atheroscleroses
D002545 Brain Ischemia Localized reduction of blood flow to brain tissue due to arterial obstruction or systemic hypoperfusion. This frequently occurs in conjunction with brain hypoxia (HYPOXIA, BRAIN). Prolonged ischemia is associated with BRAIN INFARCTION. Cerebral Ischemia,Ischemic Encephalopathy,Encephalopathy, Ischemic,Ischemia, Cerebral,Brain Ischemias,Cerebral Ischemias,Ischemia, Brain,Ischemias, Cerebral,Ischemic Encephalopathies
D002546 Ischemic Attack, Transient Brief reversible episodes of focal, nonconvulsive ischemic dysfunction of the brain having a duration of less than 24 hours, and usually less than one hour, caused by transient thrombotic or embolic blood vessel occlusion or stenosis. Events may be classified by arterial distribution, temporal pattern, or etiology (e.g., embolic vs. thrombotic). (From Adams et al., Principles of Neurology, 6th ed, pp814-6) Brain Stem Ischemia, Transient,Cerebral Ischemia, Transient,Crescendo Transient Ischemic Attacks,Transient Ischemic Attack,Anterior Circulation Transient Ischemic Attack,Brain Stem Transient Ischemic Attack,Brain TIA,Brainstem Ischemia, Transient,Brainstem Transient Ischemic Attack,Carotid Circulation Transient Ischemic Attack,Posterior Circulation Transient Ischemic Attack,TIA (Transient Ischemic Attack),Transient Ischemic Attack, Anterior Circulation,Transient Ischemic Attack, Brain Stem,Transient Ischemic Attack, Brainstem,Transient Ischemic Attack, Carotid Circulation,Transient Ischemic Attack, Posterior Circulation,Transient Ischemic Attack, Vertebrobasilar Circulation,Transient Ischemic Attacks, Crescendo,Vertebrobasilar Circulation Transient Ischemic Attack,Attack, Transient Ischemic,Attacks, Transient Ischemic,Brainstem Ischemias, Transient,Cerebral Ischemias, Transient,Ischemia, Transient Brainstem,Ischemia, Transient Cerebral,Ischemias, Transient Brainstem,Ischemias, Transient Cerebral,Ischemic Attacks, Transient,TIA, Brain,TIAs (Transient Ischemic Attack),Transient Brainstem Ischemia,Transient Cerebral Ischemia,Transient Cerebral Ischemias,Transient Ischemic Attacks
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012307 Risk Factors An aspect of personal behavior or lifestyle, environmental exposure, inborn or inherited characteristic, which, based on epidemiological evidence, is known to be associated with a health-related condition considered important to prevent. Health Correlates,Risk Factor Scores,Risk Scores,Social Risk Factors,Population at Risk,Populations at Risk,Correlates, Health,Factor, Risk,Factor, Social Risk,Factors, Social Risk,Risk Factor,Risk Factor Score,Risk Factor, Social,Risk Factors, Social,Risk Score,Score, Risk,Score, Risk Factor,Social Risk Factor

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