A5008285232- Cerebrovascular and Carotid Artery Diseases
- Cardiovascular Health and Disease Prevention
- Acute Ischemic Stroke Management
- Cardiac Imaging and Diagnostics
- Intracranial Aneurysms: Treatment and Complications
- Advanced MRI Techniques and Applications
- Traumatic Brain Injury and Neurovascular Disturbances
- Cardiovascular Disease and Adiposity
- MRI in cancer diagnosis
- Oropharyngeal Anatomy and Pathologies
- Intracerebral and Subarachnoid Hemorrhage Research
- Advanced Neuroimaging Techniques and Applications
- Blood Pressure and Hypertension Studies
- Moyamoya disease diagnosis and treatment
- Cerebral Venous Sinus Thrombosis
- Trace Elements in Health
- Glioma Diagnosis and Treatment
- Radiomics and Machine Learning in Medical Imaging
- Fetal and Pediatric Neurological Disorders
- Nutritional Studies and Diet
- Venous Thromboembolism Diagnosis and Management
- Neurological Disease Mechanisms and Treatments
- Cerebrospinal fluid and hydrocephalus
- Protease and Inhibitor Mechanisms
- Cerebrovascular and genetic disorders
University of Utah
2019-2024
Advanced Imaging Research (United States)
2021
Cornell University
2013-2020
New York Hospital Queens
2014-2019
NewYork–Presbyterian Hospital
2014-2019
Presbyterian Hospital
2014-2019
Weill Cornell Medicine
2016-2019
Utah Department of Health
2019
Boston University
2018
MIND Research Institute
2014-2018
Background Magnetic resonance imaging of carotid plaque can aid in stroke risk stratification patients with stenosis. However, the prevalence complicated cryptogenic is uncertain, especially as assessed by techniques routinely included acute magnetic protocols. We whether angiography–defined presence intraplaque high‐intensity signal ( IHIS ), a marker hemorrhage, associated ipsilateral stroke. Methods and Results Cryptogenic evidence unilateral anterior circulation infarction without...
Although preclinical studies have shown inflammation to mediate perihematomal edema (PHE) after intracerebral hemorrhage, clinical data are lacking. Leukocyte count, often used gauge serum inflammation, has been correlated with poor outcome but its relationship PHE remains unknown. Our aim was test the hypothesis that leukocyte count is associated growth.We included patients hemorrhage admitted a tertiary-care stroke center between 2011 and 2015. The primary absolute growth during 24 hours,...
Increasing evidence suggests that carotid artery imaging can identify vulnerable plaque elements increase stroke risk. We correlated recently proposed markers, soft and hard thickness measurements on axial computed tomography angiography source images, with symptomatic disease status (ipsilateral or transient ischemic attack) in high-grade disease.Soft were measured a validated technique using images subjects ≥70% extracranial stenosis. Logistic regression analyses used to assess the...
Background and Purpose— Carotid artery plaque with <50% luminal stenosis may be an underappreciated stroke mechanism. We assessed how many causes might reclassified after accounting for nonstenosing plaques high-risk features. Methods— included patients enrolled in the Cornell Acute Stroke Academic Registry from 2011 to 2015 who had anterior circulation infarction, magnetic resonance imaging of brain, angiography neck. High-risk was identified by intraplaque hemorrhage ascertained routine...
Background Studies have shown that pericoronary artery inflammation can be accurately detected via increased attenuation on computed tomography. Our purpose was to evaluate the association between pericarotid inflammation, measured by density of carotid perivascular fat tomography angiography, with stroke and transient ischemic attack. Methods Results We screened angiography examinations for patients unilateral internal ( ICA ) stenosis ≥50% 99%. A blinded neuroradiologist placed...
Background and Purpose— The relationship between carotid atherosclerosis ipsilateral silent brain infarction (SBI) is unclear. We tested the hypothesis that extracranial internal artery (ICA) stenosis associated with a greater prevalence of SBI in cerebral hemisphere to ICA disease compared unaffected, contralateral side. Methods— identified patients unilateral ≥50% on angiography by standard imaging criteria. included recent magnetic resonance who had no previous history stroke or transient...
<h3>BACKGROUND AND PURPOSE:</h3> Emerging evidence indicates that plaque imaging can improve stroke risk stratification in patients with carotid artery atherosclerosis. We studied the association between soft and hard (calcified) thickness measurements on CTA symptomatic disease status (ipsilateral or TIA) moderate-grade stenosis. <h3>MATERIALS METHODS:</h3> measured soft-plaque hard-plaque axial source images each subjects NASCET 50%–69% ICA used logistic regression receiver operating...
<h3>BACKGROUND AND PURPOSE:</h3> Patients with SAH are at increased risk of delayed infarction. Early detection and treatment infarction remain challenging. We assessed blood-brain barrier permeability, measured as permeability surface area product, by using CTP in patients <h3>MATERIALS METHODS:</h3> performed a retrospective study on follow-up NCCT. was before the development data were postprocessed into CBF, MTT maps. Coregistration to align infarcted region NCCT corresponding location...
<b><i>Background:</i></b> Carotid plaque MRI has been a useful method to characterize vulnerable atherosclerotic elements. Recent investigations have suggested that source images from CT angiography (CTA) and MR (MRA) can identify the simple high-risk features of symptom-producing carotid artery plaque. We studied correlation relative diagnostic accuracies CTA MRA in detecting symptomatic <b><i>Methods:</i></b> Subjects were eligible if they...
Cryptococcus spp is a common fungal infection and frequent cause of meningitis in immunocompromised patients; however, immunocompetent patients are also at risk infection. Visual loss often occurs via elevated intracranial hypertension but can rarely occur through direct optic nerve, chiasm, or tract invasion. We report case 38-year-old woman who presented with decreased acuity both eyes. She had generalized visual field constriction the right eye temporal hemianopsia left eye. Magnetic...
Intracranial atherosclerosis is a common cause of ischemic stroke. stenosis most commonly quantified by the Warfarin-Aspirin Symptomatic Disease method, which involves calculating ratio luminal diameter measurements on conventional angiography. Our purpose was to determine whether single linear measurement narrowest caliber intracranial ICA MRA can accurately predict measurements.We identified patients from prospective stroke registry who had undergone head MRAs quantitatively evaluate...