Ajay Malhotra
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View article: Education Research: Trends in Faculty Tenure Status and Diversity in Academic Neurology Departments in the United States
Education Research: Trends in Faculty Tenure Status and Diversity in Academic Neurology Departments in the United States Open
Despite faculty expansion, the proportion of tenure-line positions in academic neurology declined, with persistent underrepresentation of women and URiM faculty, possibly reflecting persistent structural barriers in academic advancement th…
View article: Comparing Handcrafted Radiomics Versus Latent Deep Learning Features of Admission Head CT for Hemorrhagic Stroke Outcome Prediction
Comparing Handcrafted Radiomics Versus Latent Deep Learning Features of Admission Head CT for Hemorrhagic Stroke Outcome Prediction Open
Handcrafted radiomics use predefined formulas to extract quantitative features from medical images, whereas deep neural networks learn de novo features through iterative training. We compared these approaches for predicting 3-month outcome…
View article: Abstract 178: Endovascular versus medical management of basilar artery occlusion stroke with low NIH stroke scale
Abstract 178: Endovascular versus medical management of basilar artery occlusion stroke with low NIH stroke scale Open
Background The role of endovascular treatment (EVT) in basilar artery occlusion (BAO) stroke patients with low NIH Stroke Scale scores (NIHSS <10) remains unclear, and decision‐making guidance is limited. This study sought to assess whethe…
View article: Impact of anxiety and mood disorders on elective flow diversion for unruptured intracranial aneurysms: propensity score-matched analyses of two large databases
Impact of anxiety and mood disorders on elective flow diversion for unruptured intracranial aneurysms: propensity score-matched analyses of two large databases Open
Background Anxiety and mood disorders (AMD) may impact the management and outcomes of patients with unruptured intracranial aneurysms (UIAs). This study investigates AMD’s associations with utilization and outcomes of endovascular flow div…
View article: Recent Trends in Neuroradiologist Compensation and Clinical Productivity in Academic versus Non-Academic Settings
Recent Trends in Neuroradiologist Compensation and Clinical Productivity in Academic versus Non-Academic Settings Open
Awareness of trends in compensation and clinical productivity are important, especially in a competitive market for hiring radiologists. This study shows that in the last decade, clinical productivity as measured by median Work Relative Va…
View article: A nnU-Net-based automatic segmentation of FCD type II lesions in 3D FLAIR MRI images
A nnU-Net-based automatic segmentation of FCD type II lesions in 3D FLAIR MRI images Open
Focal cortical dysplasia (FCD) type II is a common cause of epilepsy and is challenging to detect due to its similarities with other brain conditions. Finding these lesions accurately is essential for successful surgery and seizure control…
View article: An 11,000-Study Open-Access Dataset of Longitudinal Magnetic Resonance Images of Brain Metastases
An 11,000-Study Open-Access Dataset of Longitudinal Magnetic Resonance Images of Brain Metastases Open
Brain metastases are a common complication of systemic cancer, affecting over 20% of patients with primary malignancies. Longitudinal magnetic resonance imaging (MRI) is essential for diagnosing patients, tracking disease progression, asse…
View article: Nexfin versus conventional oscillometric cuff for blood pressure monitoring during neuro-endovascular procedures
Nexfin versus conventional oscillometric cuff for blood pressure monitoring during neuro-endovascular procedures Open
BACKGROUND: Nexfin, a noninvasive blood pressure (BP) monitoring system, can provide continuous real-time measurements of BP, which can be useful for patients with acute neurological injury who require urgent neuroendovascular intervention…
View article: Gender Differences in Medicare Practice and Payment of Neuroradiologists
Gender Differences in Medicare Practice and Payment of Neuroradiologists Open
Female neuroradiologists were underrepresented, charged less, and received less overall payment compared with their male counterparts. Female neuroradiologists provided a smaller range and number of services, and a greater proportion of fe…
View article: Minimally Invasive Surgery Versus Conventional Neurosurgical Treatments for Patients with Subcortical Supratentorial Intracerebral Hemorrhage: A Nationwide Study of Real-World Data from 2016 to 2022
Minimally Invasive Surgery Versus Conventional Neurosurgical Treatments for Patients with Subcortical Supratentorial Intracerebral Hemorrhage: A Nationwide Study of Real-World Data from 2016 to 2022 Open
Background: Neurosurgical interventions are often indicated for patients with subcortical, supratentorial intracerebral hemorrhage (ICH); however, the optimal treatment modality is controversial. Whether minimally invasive surgery (MIS) ma…
View article: Academic Orthopaedic Surgeon Financial Compensation in the United States: Trends and Distribution
Academic Orthopaedic Surgeon Financial Compensation in the United States: Trends and Distribution Open
Introduction: The overall trends in academic orthopaedic surgery compensation are not well studied. The aim of this study was to assess trends and distribution of academic orthopaedic surgery financial compensation and consider in relation…
View article: Improving the Robustness of Deep Learning Models in Predicting Hematoma Expansion from Admission Head CT
Improving the Robustness of Deep Learning Models in Predicting Hematoma Expansion from Admission Head CT Open
Adversarial training and inclusion of threshold-based segmentation as an additional input can improve deep learning model robustness in prediction of HE from admission head CTs in acute ICH.
View article: Optimizing Automated Hematoma Expansion Classification from Baseline and Follow-Up Head Computed Tomography
Optimizing Automated Hematoma Expansion Classification from Baseline and Follow-Up Head Computed Tomography Open
Hematoma expansion (HE) is an independent predictor of poor outcomes and a modifiable treatment target in intracerebral hemorrhage (ICH). Evaluating HE in large datasets requires segmentation of hematomas on admission and follow-up CT scan…
View article: Machine Learning Models for 3-Month Outcome Prediction Using Radiomics of Intracerebral Hemorrhage and Perihematomal Edema from Admission Head Computed Tomography (CT)
Machine Learning Models for 3-Month Outcome Prediction Using Radiomics of Intracerebral Hemorrhage and Perihematomal Edema from Admission Head Computed Tomography (CT) Open
Background: Intracerebral hemorrhages (ICH) and perihematomal edema (PHE) are respective imaging markers of primary and secondary brain injury in hemorrhagic stroke. In this study, we explored the potential added value of PHE radiomic feat…
View article: A Hybrid Transformer-Convolutional Neural Network for Segmentation of Intracerebral Hemorrhage and Perihematomal Edema on Non-Contrast Head Computed Tomography (CT) with Uncertainty Quantification to Improve Confidence
A Hybrid Transformer-Convolutional Neural Network for Segmentation of Intracerebral Hemorrhage and Perihematomal Edema on Non-Contrast Head Computed Tomography (CT) with Uncertainty Quantification to Improve Confidence Open
Intracerebral hemorrhage (ICH) and perihematomal edema (PHE) are key imaging markers of primary and secondary brain injury in hemorrhagic stroke. Accurate segmentation and quantification of ICH and PHE can help with prognostication and gui…
View article: Neuroimaging Correlates of the NIH-Toolbox-Driven Cognitive Metrics in Children
Neuroimaging Correlates of the NIH-Toolbox-Driven Cognitive Metrics in Children Open
Background: The National Institutes of Health (NIH) Toolbox Cognition Battery is increasingly being used as a standardized test to examine cognitive functioning in multicentric studies. This study examines the associations between the NIH …
View article: Accuracy of Financial Disclosures by Scientific Presenters/Authors at the ASNR 2024 Annual Meeting
Accuracy of Financial Disclosures by Scientific Presenters/Authors at the ASNR 2024 Annual Meeting Open
Physician-industry financial relationships can drive research and innovation, improving patient care and outcomes, but also potentially raise ethical concerns if not disclosed appropriately. This study shows high rates of nondisclosures by…
View article: Financial Compensation of Academic Otolaryngologists in the United States: Trends and Distribution
Financial Compensation of Academic Otolaryngologists in the United States: Trends and Distribution Open
Objectives The aim of this study was to assess recent trends in financial compensation in the field of academic otolaryngology, and distribution based on rank, sex, race/ethnicity, and geographical regions in academic medical centers. Meth…
View article: P10.25.A STANDARDIZATION AND AUTOMATIZATION OF MEASURING AND REPORTING BRAIN METASTASIS OVER TIME BY LEVERAGING ARTIFICIAL INTELLIGENCE
P10.25.A STANDARDIZATION AND AUTOMATIZATION OF MEASURING AND REPORTING BRAIN METASTASIS OVER TIME BY LEVERAGING ARTIFICIAL INTELLIGENCE Open
BACKGROUND Longitudinal assessment and reporting of brain metastases (BM) are prerequisites for a successful treatment regimen but exhibit inter-observer variability and are laborious. This study aimed to evaluate the workflow efficiency g…
View article: Academic Radiology Physician Financial Compensation in the United States: Trends and Distribution
Academic Radiology Physician Financial Compensation in the United States: Trends and Distribution Open
Salary inequities persist in academic radiology and should be addressed as part of the broader drive to increase diversity, equity, and inclusion.
View article: Distribution and Disparities of Industry Payments to Neuroradiologists
Distribution and Disparities of Industry Payments to Neuroradiologists Open
Industry payments to neuroradiologists are highly concentrated among top earners, particularly among the top 5% of payment recipients. The number of payments decreased during the COVID-19 pandemic, though the dollar value of payments was o…
View article: Post-Thrombectomy Subarachnoid Hemorrhage: Incidence, Predictors, Clinical Relevance, and Effect Modulators
Post-Thrombectomy Subarachnoid Hemorrhage: Incidence, Predictors, Clinical Relevance, and Effect Modulators Open
Background: Subarachnoid hemorrhage (SAH) following endovascular thrombectomy (EVT) is a poorly understood phenomenon, and whether it is associated with clinical detriment is unclear. Methods: This was an explorative analysis of a national…
View article: Hypoperfusion Intensity Ratio as an Indirect Imaging Surrogate in Patients With Anterior Circulation Large‐Vessel Occlusion and Association of Baseline Characteristics With Poor Collateral Status
Hypoperfusion Intensity Ratio as an Indirect Imaging Surrogate in Patients With Anterior Circulation Large‐Vessel Occlusion and Association of Baseline Characteristics With Poor Collateral Status Open
Background Collateral status (CS) plays a crucial role in infarct growth rate, risk of postthrombectomy hemorrhage, and overall clinical outcomes in patients with acute ischemic stroke (AIS) secondary to anterior circulation large‐vessel o…
View article: Relative Cerebral Blood Flow as an Indirect Imaging Surrogate in Patients With Anterior Circulation Large Vessel Occlusion and Association of Baseline Characteristics With Poor Collateral Status
Relative Cerebral Blood Flow as an Indirect Imaging Surrogate in Patients With Anterior Circulation Large Vessel Occlusion and Association of Baseline Characteristics With Poor Collateral Status Open
Background In acute ischemic stroke (AIS), collateral status (CS) is an important predictor of favorable outcomes in patients with AIS. Among quantitative cerebral perfusion parameters, relative cerebral blood flow (rCBF) is considered an …
View article: Deep learning for prediction of post-thrombectomy outcomes based on admission CT angiography in large vessel occlusion stroke
Deep learning for prediction of post-thrombectomy outcomes based on admission CT angiography in large vessel occlusion stroke Open
Purpose Computed Tomography Angiography (CTA) is the first line of imaging in the diagnosis of Large Vessel Occlusion (LVO) strokes. We trained and independently validated end-to-end automated deep learning pipelines to predict 3-month out…
View article: Automated detection of early signs of irreversible ischemic change on CTA source images in patients with large vessel occlusion
Automated detection of early signs of irreversible ischemic change on CTA source images in patients with large vessel occlusion Open
Purpose To create and validate an automated pipeline for detection of early signs of irreversible ischemic change from admission CTA in patients with large vessel occlusion (LVO) stroke. Methods We retrospectively included 368 patients for…
View article: Thrombectomy vs Medical Management for Posterior Cerebral Artery Stroke
Thrombectomy vs Medical Management for Posterior Cerebral Artery Stroke Open
This study provides Class III evidence that in patients with acute PCA ischemic stroke, treatment with EVT compared with MM alone was associated with higher odds of no disabling deficit at 90 days and higher odds of sICH.