A5046312084- Cerebrovascular and Carotid Artery Diseases
- Cerebrospinal fluid and hydrocephalus
- Neurological Complications and Syndromes
- Acute Ischemic Stroke Management
- Intracranial Aneurysms: Treatment and Complications
- Traumatic Brain Injury and Neurovascular Disturbances
- Advanced MRI Techniques and Applications
- Advanced Neuroimaging Techniques and Applications
- Neurological and metabolic disorders
- Vascular Malformations Diagnosis and Treatment
- Fetal and Pediatric Neurological Disorders
- Cerebral Venous Sinus Thrombosis
- Infectious Encephalopathies and Encephalitis
- Pharmacological Effects and Toxicity Studies
- Moyamoya disease diagnosis and treatment
- Spinal Fractures and Fixation Techniques
- Glioma Diagnosis and Treatment
- Head and Neck Surgical Oncology
- Spinal Dysraphism and Malformations
- Neurosurgical Procedures and Complications
- Intracerebral and Subarachnoid Hemorrhage Research
- Spine and Intervertebral Disc Pathology
- Meningioma and schwannoma management
- MRI in cancer diagnosis
- Atomic and Subatomic Physics Research
University of Miami
2020-2025
American College of Radiology
2025
Cincinnati Children's Hospital Medical Center
2025
Radiology Associates
2025
The University of Texas Southwestern Medical Center
2025
University of California, San Francisco
2025
University of Cincinnati
2025
Jackson Memorial Hospital
2024
University of Minnesota
2012-2023
Advanced Imaging Research (United States)
2022
Posterior reversible encephalopathy syndrome (PRES) is classically characterized as symmetric parietooccipital edema but may occur in other distributions with varying imaging appearances. This study determines the incidence of atypical and typical regions involvement unusual manifestations.Seventy-six patients were eventually included having confirmed PRES from 111 initially suspected cases, per clinical follow-up. Two neuroradiologists retrospectively reviewed each MR image. Standard...
<b>BACKGROUND AND PURPOSE:</b> Four-section multisection CT angiography (MSCTA) accurately detects aneurysms at or more than 4 mm but is less accurate for those mm. Our purpose was to determine the accuracy of 64-section MSCTA (64MSCTA) in aneurysm detection versus combined digital subtraction (DSA) and 3D rotational (3DRA). <b>MATERIALS METHODS:</b> In a retrospective review patients studied because acute symptoms suspicious arising from an intracranial aneurysm, 63 subjects were included...
Toxic leukoencephalopathy may present acutely or subacutely with symmetrically reduced diffusion in the periventricular and supraventricular white matter, hereafter referred to as matter. This entity reverse both on imaging clinically. However, a gathering together of heterogeneous causes this disorder seen MRI diffusion-weighted (DWI) an analysis their likelihood has not yet been performed. Our goals were gather acute subacute toxic that can matter order promote recognition entity, evaluate...
<h3>BACKGROUND AND PURPOSE:</h3> PRES-related vasogenic edema is potentially reversible while hemorrhage occurs in only 15.2%–17.3% of patients. However, the true incidence could be higher when SWI considered. Thus, we set out to determine MH, SAH, and IPH PRES by using particularly evaluate whether such MHs are reversible. <h3>MATERIALS METHODS:</h3> Thirty-one patients with were included, 17 having follow-up SWI. Two neuroradiologists reviewed SWI, FLAIR, DWI, CE-T1WI. The presence number...
Although posterior reversible encephalopathy syndrome (PRES) typically involves cortical or subcortical edema of the cerebrum, only individual cases have been described a variant involving central brainstem and basal ganglia lacking edema. We evaluated FLAIR T2-weighted images 124 patients with confirmed PRES to determine incidence this uncommon variant, which we refer as "central variant"; structures are involved in variant; associated causes.We found that five (4%) had MR findings...
Toxic and metabolic brain disorders are relatively uncommon diseases that affect the central nervous system, but they important to recognize as can lead catastrophic outcomes if not rapidly properly managed. Imaging plays a key role in determining most probable diagnosis, pointing next steps of investigation, providing prognostic information. The majority cases demonstrate bilateral symmetric involvement structures at imaging, affecting deep gray nuclei, cortical matter, and/or...
The need for a guidance document on MR safe practices arose from growing awareness of the environment's potential risks and adverse event reports involving patients, equipment, personnel. Initially published in 2002, American College Radiology White Paper Safety established de facto industry standards responsible clinical research environments. most recent version addresses new sources risk events, increases dynamic environments, recommends that those medical director safety undergo annual...
<h3>BACKGROUND AND PURPOSE:</h3> In acute hepatic encephalopathy, MR imaging abnormalities have been described in the PVWM, thalami, and corticospinal tracts. We sought to determine characteristic regions of involvement on FLAIR DWI, evaluate their reversibility, correlate extent with clinical severity. <h3>MATERIALS METHODS:</h3> Twenty patients who presented clinically encephalopathy <21 days after symptom onset were reviewed retrospectively. Two neuroradiologists recorded involved DWI...
<h3>BACKGROUND AND PURPOSE:</h3> Posterior reversible encephalopathy syndrome is a clinicoradiologic syndrome. Literature regarding associated factors and the prognostic significance of contrast enhancement in posterior sparse. This study set out to evaluate an association between presence various clinical large series patients with this <h3>MATERIALS METHODS:</h3> From MR imaging report search that yielded 176 clinically confirmed 1997 2014, we identified 135 who had received...
Interlaminar lumbar puncture and cervical may not be ideal in all circumstances. Recently, we have used a transforaminal approach selected situations. Between May 2016 December 2017, twenty-six punctures were performed 9 patients (25 CT-guided, 1 fluoroscopy-guided). Seven had spinal muscular atrophy referred for intrathecal nusinersen administration. In 2, CT myelography was via puncture. The posterior elements completely fused 8, there an overlying abscess 1. L1-2 level 2; the L2-3 level,...
Prior studies regarding acute toxic leukoencephalopathy (ATL) are either small, or preliminary. Our aim was to evaluate etiologies of and differences in imaging severity outcomes among various ATL.MRIs patients with suspected ATL over 15 years were retrospectively reviewed; inclusion criteria were: MRI <3 weeks presentation both DWI FLAIR. These jointly graded by two neuroradiologists via a previously described score severity. Clinical outcome evaluated modified Rankin (mRS) (ATLOS) scores,...
<h3>BACKGROUND AND PURPOSE:</h3> Acute stroke presentation and outcome depend on both ischemic infarct volume location. We aimed to determine the association between acute topology lesion severity at discharge. <h3>MATERIALS METHODS:</h3> Patients with who underwent MR imaging within 24 hours of symptom onset or last seen well were included. Infarcts segmented coregistered Montreal Neurological Institute-152 brain map. Voxel-based analyses performed distribution lesions associated larger...
<h3>BACKGROUND AND PURPOSE:</h3> Recent studies demonstrated superiority of CTP to NCCT/CTA at detecting lacunar infarcts. This study aimed assess CTP9s capability identify lacunae in different intracranial regions. <h3>MATERIALS METHODS:</h3> Over 5.5 years, 1085 examinations were retrospectively reviewed patients with acute stroke symptoms within 12 hours and MRI 7 days symptom onset. Patients had infarcts ≤2 cm or no infarct on DWI; concomitant >2 DWI excluded. postprocessing was...