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34
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Introduction
Current institution
Additional affiliations
June 2022 - present
April 2019 - January 2020
Education
May 2023 - May 2027
August 2018 - May 2022
Publications
Publications (34)
Objective
Laser interstitial thermal therapy (LiTT) is a minimally invasive surgical procedure for intractable mesial temporal epilepsy (mTLE). LiTT is safe and effective, but seizure outcomes are highly variable due to patient variability, suboptimal targeting, and incomplete ablation of the epileptogenic zone. Apparent diffusion coefficient (ADC)...
Deep brain stimulation (DBS) of the substantia nigra pars reticulata (SNpr) is under investigation for managing auditory-verbal hallucinations (AVH) in treatment-resistant schizophrenia (TR-SZ). We assessed acute AVH suppression during initial SNpr-DBS programming in three TR-SZ patients and mapped associated brain network engagement using normativ...
Background: Subthalamic nucleus deep brain stimulation (STN-DBS) improves motor symptoms but can be associated with subtle cognitive changes, including declines in verbal fluency (VF). Network-based mechanisms underlying stimulation-induced fluency declines are not fully understood.
Objective: This study investigates how STN-DBS stimulation locatio...
Parkinsonian bradykinesia is rated using a composite scale incorporating slowed frequency of repetitive movements, decrement amplitude, and arrhythmicity. Differential localization of these movement components within basal ganglia would drive the development of more personalized network-targeted symptomatic therapies. Using an optical motion sensor...
INTRODUCTION
Subthalamic Nucleus Deep Brain Stimulation (STN-DBS) in Parkinson’s Disease (PD) involves disruption of motor cortex-STN synchrony of beta-band oscillations. However, precise neural substrates within the motor cortex where such oscillatory fluctuations and their interactions occur are still unknown. Understanding spatial-temporal dynam...
INTRODUCTION
Minimally invasive procedures such as MRI-guided LiTT are increasingly being utilized in pediatric epilepsy patients; however, their clinical efficacy has been limited by challenges in precisely localizing epileptogenic tissues. A precise and accurate means to highlight epileptogenic tissues noninvasively will augment the utility of Li...
INTRODUCTION
Understanding dynamic neural activity in the motor cortex during movement is crucial for neurological treatment, rehabilitation, and brain-computer interfaces. The relationship between spatially distributed brain activity and precise arm and hand movement control is key to understanding motor function. However, observing these dynamics...
Substance use disorders (SUDs) are a significant public health concern, with over 30% failing available treatment. Severe SUD is characterized by drug-cue reactivity that predicts treatment-failure. We leveraged this pathophysiological feature to personalize deep brain stimulation (DBS) of the nucleus accumbens region (NAc) in an SUD patient. While...
INTRODUCTION
Laser Interstitial Thermal Therapy (LiTT) is increasingly becoming a first-line surgical therapy for mesial temporal lobe epilepsy (mTLE). While promising, its seizure outcomes have also been highly variable, presumably due to an incomplete understanding of mechanisms behind LiTT. Epilepsy is a network disorder, and therefore it is cru...
Introduction
Charge balancing is used in deep brain stimulation (DBS) to avoid net charge accumulation at the tissue-electrode interface that can result in neural damage. Charge balancing paradigms include passive recharge and active recharge. In passive recharge, each cathodic pulse is accompanied by a waiting period before the next stimulation, w...
Objective
Olfactory dysfunction is well-documented in epilepsy. We recently found that olfactory assessment may have clinical utility in identifying surgical candidates with intractable epilepsy who benefit from magnetic resonance–guided laser interstitial thermal therapy (MRgLiTT). However, the demographic, clinical, and cognitive correlates of ol...
Background
Parkinsonian bradykinesia is rated using a composite scale incorporating slowed frequency of repetitive movements, decrement amplitude, and arrhythmicity. Differential localization of these movement components within basal ganglia would drive the development of more personalized network-targeted symptomatic therapies.
Methods
Using an o...
Background:
Growing evidence suggests that piriform cortex resection during anterior temporal lobectomy is important for achieving good seizure outcome in mesial temporal lobe epilepsy (mTLE). However, the relationship between seizure outcome and piriform cortex ablation during MR-guided laser interstitial thermal therapy (MRgLITT) remains unclear...
Objective
MR-guided Laser Interstitial Thermal Therapy (LiTT) is a minimally invasive surgical procedure for intractable mesial temporal epilepsy (mTLE). LiTT is safe and effective but seizure outcomes are highly variable due to patient variability, suboptimal targeting, and incomplete ablation of epileptogenic zone. Apparent Diffusion Coefficient...
OBJECTIVE
Piriform cortex (PC) is one of the critical structures in the epileptogenesis of mesial temporal lobe epilepsy (mTLE), but its role is poorly understood. The authors examined the utility of apparent diffusion coefficient (ADC; an MR-based marker of tissue pathology) of the PC as a predictor of seizure outcome in patients with mTLE undergo...
Memories encoded in the dentate gyrus (DG) - CA3 circuit of the hippocampus are routed from CA1 to anterior cingulate cortex (ACC) for consolidation. Although CA1 parvalbumin inhibitory neurons (PV INs) orchestrate hippocampal-cortical communication, we know less about CA3 PV INs or DG - CA3 principal neuron - IN circuit mechanisms that contribute...
Rationale: MR-guided Laser Interstitial Thermal Therapy (MRgLiTT) is a minimally invasive surgical procedure that is rapidly becoming an alternate first-line surgical option in intractable mesial temporal epilepsy (mTLE). Though safe and effective, seizure outcomes following MRgLiTT are highly variable partly because of patient variability as well...
OBJECTIVE
Maximal safe ablation of target structures during magnetic resonance–guided laser interstitial thermal therapy (MRgLiTT) is critical to achieving good seizure outcome in patients with mesial temporal lobe epilepsy (mTLE). The authors sought to determine whether intraoperative physiological variables are associated with ablation volume dur...
Background
Deep Brain Stimulation (DBS) of the subthalamic nucleus or globus pallidus internus is used to treat the motor symptoms of Parkinson's disease. The former can worsen impulsive and compulsive behaviors after controlling for the reduction of dopaminergic medications. However, the effect of pallidal DBS on such behaviors in PD patients is l...
Background
Magnetic resonance-guided laser interstitial thermal therapy (MRgLiTT) is becoming a first-line surgical therapy for mesial temporal lobe epilepsy (mTLE) due to good seizure control and low complication risk. However, seizure outcomes after MRgLiTT remain highly variable and there is a need to improve patient selection and post-operative...
Memories encoded in the dentate gyrus (DG)-CA3 circuit of the hippocampus are routed from CA1 to anterior cingulate cortex (ACC) for consolidation. Although CA1 parvalbumin inhibitory neurons (PV INs) orchestrate hippocampal-cortical communication, we know less about CA3 PV INs or DG-CA3 principal neuron-IN circuit mechanisms that contribute to evo...
COVID-19 is a deadly respiratory disease that has caused a worldwide pandemic. Currently, there is no approved vaccine, and few therapeutic options are available. One treatment involves the invasive process of intubating a patient and placing them on a ventilator. Due to a shortage of ventilators, intensive care unit beds, and complications associa...
Background
Deep brain stimulation (DBS) lead revision due to suboptimal therapy is common but there is no standardised protocol. We describe a novel technique using iMRI to perform concurrent new Globus Pallidus Internus (GPi) DBS lead implantation and old lead removal in a dystonia patient.
Case-description: A 60-year-old woman with medication and...
Parkinson's Disease (PD) is a neurodegenerative disease characterized by its hallmark motor symptoms of bradykinesia and tremor. Numerous studies have suggested novel quantification methods of its symptoms. However, there lacks the means to accurately assess improvements in an intraoperative setting during deep brain stimulation (DBS) electrode imp...
Phase-amplitude coupling (PAC), in which the amplitude of a faster neural oscillation couples to the phase of a slower rhythm, is one of the most common representations of complex neuronal rhythmic activities. In a healthy brain, PAC accompanies cognitive function, and abnormal patterns of PAC have been linked to several neurological disorders. Amo...
Approximately 500,000 dialysis patients in America are at a high risk of hyperkalemia, a condition where blood potassium becomes elevated above normal levels. Hyperkalemia is extremely dangerous, as it can result in severe cardiac complications if untreated. Hyperkalemia may be silent or present vague symptoms until those complications develop, at...
A rapid aptasensor capable of early diagnosing prostate cancer was developed using a dual aptamer, which is composed of a prostate specific antigen (PSA) aptamer and hemin aptamer connected by a linker composed of 5 adenines. The dual aptamers immobilized on the surface of paramagnetic beads were able to competitively bind with PSA or hemin in huma...
A biosensor capable of rapidly quantifying trace levels of CA 19-9 using an enzyme-free immunoassay with 1,1’oxalayldiimidazole chemiluminescent (ODI-CL) detection was developed. The highly sensitive enzymefree immunoassay with ODI-CL detection can rapidly quantify CA 19-9 in human serum. This research demonstrates how the biosensor can be applied...
Acacetin (5,7-dihydroxy-4'-methoxyflavone), a flavonoid compound isolated from Flos Chrysanthemi Indici, chrysanthemum, safflower, and Calamintha and Linaria species has been shown to have anti-cancer activity, indicating its potential clinical value in cancer treatment. In this study, we sought to study the potentials of acacetin in preventing hum...
