- Advanced Neuroimaging Techniques and Applications
- Traumatic Brain Injury Research
- Advanced MRI Techniques and Applications
- Traumatic Brain Injury and Neurovascular Disturbances
- Dementia and Cognitive Impairment Research
- Multiple Sclerosis Research Studies
- Functional Brain Connectivity Studies
- Sports injuries and prevention
- Memory and Neural Mechanisms
- Musculoskeletal pain and rehabilitation
- Pain Management and Placebo Effect
- Cardiac Arrest and Resuscitation
- Medical Imaging Techniques and Applications
- Cerebrovascular and Carotid Artery Diseases
- Balance, Gait, and Falls Prevention
- Obstructive Sleep Apnea Research
- Radiation Dose and Imaging
- Atomic and Subatomic Physics Research
- Cerebral Palsy and Movement Disorders
- Advanced X-ray and CT Imaging
- Cardiac Imaging and Diagnostics
- Fetal and Pediatric Neurological Disorders
- Pain Mechanisms and Treatments
- Cerebrospinal fluid and hydrocephalus
- Radiology practices and education
Albert Einstein College of Medicine
2015-2024
Montefiore Medical Center
2015-2024
Resonance Research (United States)
2015-2024
Columbia University Irving Medical Center
2023-2024
Columbia University
2023-2024
Imaging Center
2018-2023
Montefiore Health System
2021
Yeshiva University
2010-2019
Rutgers, The State University of New Jersey
2019
The Bronx Defenders
2011-2019
To investigate the association of soccer heading with subclinical evidence traumatic brain injury.With institutional review board approval and compliance HIPAA guidelines, 37 amateur players (mean age, 30.9 years; 78% [29] men, 22% [eight] women) gave written informed consent completed a questionnaire to quantify in prior 12 months lifetime concussions. Diffusion-tensor magnetic resonance (MR) imaging at 3.0 T was performed (32 directions; b value, 800 sec/mm(2); 2 × 2-mm voxels). Cognitive...
To determine whether frontal white matter diffusion abnormalities can help predict acute executive function impairment after mild traumatic brain injury (mTBI).This study had institutional review board approval, included written informed consent, and complied with HIPAA. Diffusion-tensor imaging standardized neuropsychologic assessments were performed in 20 patients mTBI within 2 weeks of matched control subjects. Fractional anisotropy (FA) mean diffusivity (MD) images (imaging parameters:...
The functional significance of the α rhythm is widely debated. It has been proposed that reflects sensory inhibition and/or a temporal sampling or “parsing” mechanism. There also continuing disagreement over more fundamental questions which cortical layers generate rhythms and whether generation equivalent across systems. To address these latter questions, we analyzed laminar profiles local field potentials (LFPs) concomitant multiunit activity (MUA) from macaque V1, S1, A1 during both...
The purpose of the present study is to identify otherwise occult white matter abnormalities in patients suffering persistent cognitive impairment due mild traumatic brain injury (TBI). had Institutional Review Board (IRB) approval, included informed consent and complied with U.S. Health Insurance Portability Accountability Act (HIPAA) 1996. We retrospectively analyzed diffusion tensor MRI (DTI) 17 (nine women, eight men; age range 26–70 years) who TBI that occurred 8 months 3 years prior...
Rationale: Mechanisms leading to obstructive sleep apnea syndrome (OSAS) in obese children are not well understood.Objectives: The aim of the study was determine anatomical risk factors associated with OSAS as compared control subjects without OSAS.Methods: Magnetic resonance imaging used size upper airway structure, and body fat composition. Paired analysis compare between groups. Mixed effects regression models conditional multiple logistic were whether mass index (BMI) Z-score an effect...
Through a partnership with the National Institute of Neurological Disorders and Stroke (NINDS), Institutes Health, Department Defense, development Sport-Related Concussion (SRC) Common Data Elements (CDEs) was initiated. The aim this collaboration to increase efficiency effectiveness clinical research studies treatment outcomes, data quality, facilitate sharing across studies, reduce study start-up time, more effectively aggregate information into metadata results, educate new investigators....
To determine if diffusion tensor imaging can differentiate patients with chronic cognitive impairment after mild traumatic brain injury (TBI) from normal controls.Ten persistent TBI were evaluated at least 2 years injury. Fractional anisotropy (FA) and apparent coefficient (ADC) measured white matter regions susceptible to axonal TBI. Comparison was made 10 controls.Fractional significantly lower (4.5%; P = 0.01) ADC higher (7.1%; 0.04) in the left side of genu corpus callosum. The group...
Abstract Objectives: The present study examined the relative contribution of recent or long-term heading to neuropsychological function in amateur adult soccer players. Participants and Methods: Soccer players completed a baseline questionnaire (HeadCount-12m) ascertain during prior 12 months (long-term heading, LTH) an online (HeadCount-2w) every 3 2 weeks (recent RH). Cogstate, battery six tests, was administered assess function. Generalized estimating equations were used test if LTH RH...
To determine the rate and differential contribution of heading vs unintentional head impacts (e.g., to head, goal post) CNS symptoms in adult amateur soccer players.Amateur players completed baseline serial on-line 2-week recall questionnaires (HeadCount) reported (1) practice games, (2) trauma, (3) frequency severity (mild very severe) symptoms. For analysis, were affirmed if one or more moderate, severe, severe episodes a period. Repeated measures logistic regression was used assess...
Functional magnetic resonance imaging (fMRI) of the hand representation in primary somatosensory cortex (area 3b) macaque monkeys revealed an ipsilateral input undetected by most previous studies. Ipsilateral responses had a hemodynamic signature indistinguishable from that contralateral responses. We explored neural mechanisms fMRI effects using second derivative analysis field potentials [current source density (CSD) analysis] combined with action potential profiles, sampled area 3b linear...
Purpose Group-wise analyses of DTI in mTBI have demonstrated evidence traumatic axonal injury (TAI), associated with adverse clinical outcomes. Although is likely to a unique spatial pattern each patient, group implicitly assume that location will be the same across patients. The purpose this study was optimize and validate procedure for analysis images acquired individual patients, which could detect inter-individual differences applied setting, where patients must assessed as individuals....
Introduction Chronic exposure to stress has been shown impact a wide range of health-related outcomes in older adults. Despite extensive animal literature revealing deleterious effects biological markers on the dentate gyrus subfield hippocampus, links between hippocampal subfields and psychological have not studied humans. This study examined relationship perceived volumes among racially/ethnically diverse Methods Materials Between July 2011 March 2014, 116 nondemented participants were...