A5091081087- Pain Management and Treatment
- Musculoskeletal pain and rehabilitation
- Neurological disorders and treatments
- Botulinum Toxin and Related Neurological Disorders
- Transcranial Magnetic Stimulation Studies
- Parkinson's Disease Mechanisms and Treatments
- Pain Mechanisms and Treatments
- Advanced MRI Techniques and Applications
- Genetic Neurodegenerative Diseases
- Infrared Thermography in Medicine
- Trigeminal Neuralgia and Treatments
- Anesthesia and Pain Management
- Cardiovascular Syncope and Autonomic Disorders
- Ultrasound and Hyperthermia Applications
- Neuroscience and Neural Engineering
- Psychosomatic Disorders and Their Treatments
- Myofascial pain diagnosis and treatment
- Stroke Rehabilitation and Recovery
- Advanced Neuroimaging Techniques and Applications
- Functional Brain Connectivity Studies
- Surgical Simulation and Training
- Pain Management and Placebo Effect
- Intraoperative Neuromonitoring and Anesthetic Effects
- Acupuncture Treatment Research Studies
- Medical Education and Admissions
Banner - University Medical Center Tucson
2025
University of Arizona
2024
Florida Atlantic University
2023-2024
Albany Medical Center Hospital
2017-2023
General Electric (India)
2019
GE Global Research (United States)
2019
BackgroundWith growing numbers of patients receiving deep brain stimulation (DBS), radiologists are encountering these neuromodulation devices at an increasing rate. Current MRI safety guidelines, however, limit access in patients.PurposeTo describe (1.5 T and 3 T) experience profile a large cohort participants with active DBS systems characterize the hardware-related artifacts on images from functional MRI.Materials MethodsIn this prospective study, study underwent 1.5- or 3-T (T1-weighted...
Patients with deep brain stimulation (DBS) implants have limited access to MRI due safety concerns associated RF-induced heating. Currently, in these patients is allowed 1.5T horizontal bore scanners utilizing pulse sequences reduced power. However, the use of 3T such increasingly reported based on assessments. Here we present results comprehensive RF heating measurements for two commercially available DBS systems during at and 3T.To assess effect imaging landmark, lead configuration,...
Background The majority of Parkinson's disease patients with deep brain stimulation (DBS) use a monopolar configuration, which presents challenges for EEG and MRI studies. literature reports algorithms to convert bipolar settings. Purpose/Hypothesis To assess responses implanted DBS during fMRI studies using their clinical presumed equivalent settings published conversion recipe. Study Type Prospective. Subjects Thirteen patients. Field Strength/Sequence 1.5T 3T, gradient echo‐planar...
Chronic pain occurs in 83% of Parkinson disease (PD) patients and deep brain stimulation (DBS) has shown to result relief a subset patients, though the mechanism is unclear.To compare functional magnetic resonance imaging (MRI) data PD with chronic without DBS, those whose was relieved (PR) DBS not (PNR) DBS.Functional MRI (fMRI) blood oxygen level-dependent activation obtained 15 control, PR, PNR patients. fMRI presence absence mechanical stimuli ON OFF. Voxel-wise analysis using OFF used...
Despite spinal cord stimulation's (SCS) proven efficacy, failure rates are high with no clear understanding of which patients benefit long term. Currently, patient selection for SCS is based on the subjective experience implanting physician.To develop machine learning (ML)-based predictive models long-term response.A combined unsupervised (clustering) and supervised (classification) ML technique was applied a prospectively collected cohort 151 patients, included 31 features. Clusters...
Abstract BACKGROUND Models have been developed for predicting ideal contact and amplitude subthalamic nucleus (STN) deep brain stimulation (DBS) Parkinson disease (PD). Pulse-width is generally varied to modulate the size of energy field produced. Effects varying frequency in humans not systematically evaluated. OBJECTIVE To examine how altered frequencies affect blood oxygen level-dependent activation PD. METHODS PD subjects with optimized DBS programming underwent functional magnetic...
Secondary to the complex care, involved specialty providers, and various etiologies, chronic pelvic pain patients do not receive holistic care.
BACKGROUND AND OBJECTIVES: As spinal cord stimulation (SCS) offers a therapy for increasing numbers of patients with chronic pain and injury, it becomes increasingly important to better understand its somatotopy. In this prospective study, we investigate whether high-resolution SCS (HR-SCS) improved selectivity assessed through elicitation evoked electromyography (EMG) responses as compared commercial paddle leads. METHODS: Vertical tripole configurations were used elicit EMG in both types...
Objective:. Previous studies showed that deep brain stimulation(DBS) relieves pain symptoms in Parkinson Disease(PD) patients when programmed for motor-symptom relief. One factor involved processing is sensory perception of stimuli. With the advent directional leads, we explore whether DBS affects quantitative testing(QST) metrics acutely. Methods: PD with subthalamic(STN) and leads were tested 5 settings(DBS-OFF, DBS-ON omnidirectional stimulation, DBS-ON) each 3 segments contact used...
Over 50% of the 34 million people who suffer from diabetes mellitus (DM) are affected by diabetic neuropathy. Painful neuropathy (PDN) impacts 40-50% that group (8.5 patients) and is associated with a significant source disability economic burden. Though new neuromodulation options have been successful in recent clinical trials (NCT03228420), still there many barriers restrict patients access to these therapies. We seek examine our tertiary care center (Albany Medical Center, NY, USA)...
BACKGROUND: High-resolution spinal cord stimulation (HR-SCS) paddle can stimulate medial-dorsal columns and extend coverage to the laterally positioned targets. OBJECTIVE: To investigate medio-lateral selectivity of an HR-SCS in patients with chronic pain. METHODS: During standard-of-care (SCS) placement, epidurally evoked electromyography antidromic dorsal column–evoked potentials were recorded 12 subjects using 8 sites spanning full epidural width at thoracic T9-12 a commercial...
To assess the impact of synchronization errors between assumed functional MRI paradigm timing and deep brain stimulation (DBS) on/off cycling using a custom electrocardiogram-based triggering system METHODS: A detector for measuring predicting state was developed tested in six patients office visits. Three-electrode electrocardiogram measurements, amplified by commercial bio-amplifier, were used as input electronics box (e-box). The e-box transformed waveforms into transistor-transistor...