- Intracranial Aneurysms: Treatment and Complications
- Traumatic Brain Injury and Neurovascular Disturbances
- Cerebrospinal fluid and hydrocephalus
- Neurosurgical Procedures and Complications
- Cerebrovascular and Carotid Artery Diseases
- Cerebral Venous Sinus Thrombosis
- Alzheimer's disease research and treatments
- Advanced MRI Techniques and Applications
- Acute Ischemic Stroke Management
- Functional Brain Connectivity Studies
- Vascular Malformations Diagnosis and Treatment
- Advanced Radiotherapy Techniques
- Medical Imaging Techniques and Applications
- Dementia and Cognitive Impairment Research
- Advanced Neuroimaging Techniques and Applications
- Caveolin-1 and cellular processes
- MRI in cancer diagnosis
- Management of metastatic bone disease
- Radiomics and Machine Learning in Medical Imaging
- Barrier Structure and Function Studies
- Brain Metastases and Treatment
- Lipid metabolism and disorders
- Spinal Fractures and Fixation Techniques
- Spine and Intervertebral Disc Pathology
- Glioma Diagnosis and Treatment
Sunnybrook Health Science Centre
2017-2025
Health Sciences Centre
2017-2025
Sunnybrook Research Institute
2025
University of Toronto
2010-2025
MedStar Washington Hospital Center
2024
St. Michael's Hospital
2013-2023
Deleted Institution
2023
St Michaels Hospital
2020
University Health Network
2019-2020
Toronto Western Hospital
2020
MRI-guided focused ultrasound (MRgFUS) thalamotomy is a promising non-invasive treatment option for medication-resistant essential tremor. However, it has been associated with variable efficacy and relatively high incidence of adverse effects.To assess the evolution radiological findings after MRgFUS to evaluate their significance clinical outcomes.Ninety-four patients who underwent between 2012 2017 were retrospectively evaluated. Lesion characteristics assessed on routine MRI sequences, as...
The use of magnetic resonance imaging (MRI) during pregnancy is associated with concerns among patients and health professionals regards to fetal safety. In this work, the Canadian Association Radiologists (CAR) Working Group on MRI in Pregnancy presents recommendations for pregnancy, derived from literature review as well expert panel opinions discussions. working group, which consists academic subspecialty radiologists obstetrician-gynaecologists, aimed provide updated, evidence-based...
<h3>BACKGROUND AND PURPOSE:</h3> MR imaging rescans and recalls can create large hospital revenue loss. The purpose of this study was to develop a fast, automated method for assessing rescan need in motion-corrupted brain series. <h3>MATERIALS METHODS:</h3> A deep learning–based approach developed, outputting probability series be clinically useful. Comparison per-series with threshold, which depend on scan indication reading radiologist, determines whether needs rescanned. learning...
Object Atrophy in specific brain areas correlates with poor neuropsychological outcome after subarachnoid hemorrhage (SAH). Few studies have compared global atrophy SAH outcome. The authors examined the relationship between atrophy, clinical factors, and SAH. Methods This study was a post hoc exploratory analysis of Clazosentan to Overcome Neurological Ischemia Infarction Occurring After Subarachnoid Hemorrhage (CONSCIOUS-1) trial, randomized, double-blind, placebo-controlled trial 413...
Coverage of the anterior spinal artery (ASA) ostia is a source considerable consternation regarding flow diversion (FD) in vertebral (VA) aneurysms due to cord supply. The authors sought assess association between coverage ASA, posterior (PSA), or lateral (LSA) when placing diverters distal VAs and clinical outcomes, with emphasis on infarction.
Flow diversion has gradually become a standard treatment for intracranial aneurysms of the anterior circulation. Recently, off-label use flow diverters to treat posterior circulation also increased despite initial concerns rupture and suboptimal results. This study aimed explore change in complication rates outcomes across time treated using further evaluate mechanisms variables that could potentially explain outcomes.A retrospective review standardized data set at multiple international...
There are no established threshold values regarding the degree of growth on imaging when assessing response spinal metastases treated with stereotactic body radiation therapy (SBRT).
The finding of a colloid cyst on neuroimaging is often incidental. These lesions are usually located at the foramen Monro, hyperdense CT scans, and generally demonstrate signal intensity water MR images, although this depends their content. When symptomatic, they frequently present with headaches nausea due to an obstructive hydrocephalus. authors describe case giant in patient presenting complete left-sided vision loss progressive memory loss, two very atypical findings presentation....
Background . Aneurysmal subarachnoid hemorrhage (aSAH) survivors commonly exhibit impairment on phonemic and semantic fluency tests; however, it is unclear which of the contributing cognitive processes are compromised in aSAH patients. One method disentangling these to compare initial word production, a rapid, semiautomatic, frontal-executive process, late phase dependent more effortful retrieval lexical size requires distributed neural network. Methods Seventy-two individuals with...
Tau deposition in the entorhinal cortex is earliest pathological feature of Alzheimer's disease (AD). However, this has also been observed cognitively normal (CN) individuals and those with mild cognitive impairment (MCI). The precise pathophysiology for development tau remains unclear. We hypothesized that reduced cerebral perfusion associated deposition.A subset Disease Neuroimaging Initiative data set was utilized. Included patients had undergone arterial spin labeling MRI along...