Other Analytical, Diagnostic and Therapeutic Techniques and Equipment Commons^™

Using Ai To Diagnose Covid-19 From Patient Chest Ct Scans, Samuel Arellano, Liang Huang, Joe Jiang, Kenneth Richardson, Omar Yasser

SMU Data Science Review

Rapid and accurate detection of COVID-19 remains the best weapon to control and prevent the spread of this pandemic, at least before a vaccine or treatment is available. In this study, we trained our custom computer vision models to predict COVID-19 from patients’ CT scans. We trained one model using Google’s AutoML Vision platform and achieved comparable accuracy with previously reported models. We also trained several custom models using transfer learning by taking advantage of several well-unknown pre-trained computer vision models, including Resnet and Inception models. The models are fine-tuned with a relatively large dataset and their high accuracy should …

Deep-Learning-Based Multivariate Pattern Analysis (Dmvpa): A Tutorial And A Toolbox, Karl M. Kuntzelman, Jacob M. Williams, Phui Cheng Lim, Ashtok Samal, Prahalada K. Rao, Matthew R. Johnson

Center for Brain, Biology, and Behavior: Faculty Publications

In recent years, multivariate pattern analysis (MVPA) has been hugely beneficial for cognitive neuroscience by making new experiment designs possible and by increasing the inferential power of functional magnetic resonance imaging (fMRI), electroencephalography (EEG), and other neuroimaging methodologies. In a similar time frame, “deep learning” (a term for the use of artificial neural networks with convolutional, recurrent, or similarly sophisticated architectures) has produced a parallel revolution in the field of machine learning and has been employed across a wide variety of applications. Traditional MVPA also uses a form of machine learning, but most commonly with much simpler techniques based on …

The Potential Of Raman Spectroscopy In The Diagnosis Of Dysplastic And Malignant Oral Lesions, Ola Ibrahim, M. Toner, Steven Flint, Hugh Byrne, Fiona Lyng

Articles

Early diagnosis, treatment and/or surveillance of oral premalignant lesions are important in preventing progression to oral squamous cell carcinoma (OSCC). The current gold standard is through histopathological diagnosis, which is limited by inter and intra observer and sampling errors. The objective of this work was to use Raman spectroscopy to discriminate between benign, mild, moderate and severe dysplasia and OSCC in formalin fixed paraffin preserved (FFPP) tissues. The study included 72 different pathologies from which 17 were benign lesions, 20 mildly dysplastic, 20 moderately dysplastic, 10 severely dysplastic and 5 invasive OSCC. The glass substrate and paraffin wax background were …

Repurposing Of Omarigliptin As A Neuroprotective Agent Based On Docking With A2a Adenosine And Ache Receptors, Brain Glp-1 Response And Its Brain/Plasma Concentration Ratio After 28 Days Multiple Doses In Rats Using Lc-Ms/Ms, Bassam Ayoub, Haidy Michel, Shereen Mowaka, Moataz S. Hendy, Mariam M. Tadros

Pharmacy

Abstract: The authors in the current work suggested the potential repurposing of omarigliptin (OMR) for neurodegenerative diseases based on three new findings that support the preliminary finding of crossing BBB after a single dose study in the literature. The first finding is the positive results of the docking study with the crystal structures of A2A adenosine (A2AAR) and acetylcholine esterase (AChE) receptors. A2AAR is a member of non-dopaminergic GPCR superfamily receptor proteins and has essential role in regulation of glutamate and dopamine release in Parkinson’s disease while AChE plays a major role in Alzheimer’s disease as the primary enzyme responsible …

Biomedical Applications Of Vibrational Spectroscopy: Oral Cancer Diagnostics, Hugh Byrne, Isha Behl, Genecy Calado, Ola Ibrahim, M. Toner, Sheila Galvin, Claire M. Healy, Steven Flint, Fiona Lyng

Articles

Vibrational spectroscopy, based on either infrared absorption or Raman scattering, has attracted increasing attention for biomedical applications. Proof of concept explorations for diagnosis of oral potentially malignant disorders and cancer are reviewed, and recent advances critically appraised. Specific examples of applications of Raman microspectroscopy for analysis of histological, cytological and saliva samples are presented for illustrative purposes, and the future prospects, ultimately for routine, chairside in vivo screening are discussed.

Associations Between Daily Affect And Sleep Vary By Sleep Assessment Type: What Can Ambulatory Eeg Add To The Picture?, Brett Messman, Danica C. Slavish, Jessica R. Dietch, Brooke N. Jenkins, Maia Ten Brink, Daniel J. Taylor

Psychology Faculty Articles and Research

Objective/Background

Disrupted sleep can be a cause and a consequence of affective experiences. However, daily longitudinal studies show sleep assessed via sleep diaries is more consistently associated with positive and negative affect than sleep assessed via actigraphy. The objective of the study was to test whether sleep parameters derived from ambulatory electroencephalography (EEG) in a naturalistic setting were associated with day-to-day changes in affect.

Participants/Method

Eighty adults (mean age = 32.65 years, 63% female) completed 7 days of affect and sleep assessments. We examined bidirectional associations between morning positive affect and negative affect with sleep assessed via diary, actigraphy, and …

Resting Cerebral Oxygen Metabolism Exhibits Archetypal Network Features, Nicholas A. Hubbard, Monroe P. Turner, Kevin R. Sitek, Kathryn L. West, Jakub R. Kaczmarzyk, Lyndahl Himes, Binu P. Thomas, Hanzhang Lu, Bart Rypma

Center for Brain, Biology, and Behavior: Faculty Publications

Standard magnetic resonance imaging approaches offer high-resolution but indirect measures of neural activity, limiting understanding of the physiological processes associated with imaging findings. Here, we used calibrated functional magnetic resonance imaging during the resting state to recover low-frequency fluctuations of the cerebral metabolic rate of oxygen (CMRO2). We tested whether functional connections derived from these fluctuations exhibited organization properties similar to those established by previous standard functional and anatomical connectivity studies. Seventeen participants underwent 20 min of resting imaging during dual-echo, pseudocontinuous arterial spin labeling, and blood-oxygen-level dependent (BOLD) signal acquisition. Participants also underwent a 10 min normocapnic and hypercapnic …

The Effectiveness Of Aquatic Therapy, Robot Assisted Gait Training, And Virtual Reality On Patients With Parkinson's Disease: A Literature Review, Atasha Rehrig, Kristen Southard

Student Research Poster Presentations 2021

Background & Purpose: Parkinson’s disease (PD) is a progressive neurodegenerative disorder that affects a person’s central nervous system (CNS) as well as dopamine production. Most cases of PD cause the patient to have postural instability, difficulty with ambulation, as well as a resting tremor. Patients diagnosed with PD show a slow decline in overall function and therefore, need to maintain physical activity in order to plateau PD. Traditionally, patients with PD undergo conventional methods of physical therapy (PT) to help plateau their disease. Our literature review looked into the effectiveness of non-traditional methods such as aquatic therapy, robot-assisted gait training …

Somatosensory Dysfunction Is Masked By Variable Cognitive Deficits Across Patients On The Alzheimer’S Disease Spectrum, Alex I. Wiesman, Victoria M. Mundorf, Chloe C. Casagrande, Sara L. Wolfson, Craig M. Johnson, Pamela E. May, Daniel L. Murman, Tony W. Wilson

Center for Brain, Biology, and Behavior: Faculty Publications

Background: Alzheimer’s disease (AD) is generally thought to spare primary sensory function; however, such interpretations have drawn from a literature that has rarely taken into account the variable cognitive declines seen in patients with AD. As these cognitive domains are now known to modulate cortical somato-sensory processing, it remains possible that abnormalities in somatosensory function in patients with AD have been suppressed by neuropsychological variability in previous research. Methods: In this study, we combine magnetoencephalographic (MEG) brain imaging during a paired-pulse somatosensory gating task with an extensive battery of neuropsychological tests to investigate the influence of cognitive variability on estimated …

Mri-Guided Breast Biopsy, Makayla Franko

Medical Imaging Senior Posters

This project explains the role MRI has in performing breast biopsies. MR imaging is used along with mammogram and ultrasound to detect and monitor lesions. Traditional imaging of the breast is explained to understand how images of the breast are obtained. The grade of the lesion and how the lesion is found indicates the type of biopsy performed. MRI provides superior visibility for lesions within the breast. MRI-guided breast biopsies are indicated in patients with lesions only visible on MRI. The equipment required for an MRI-guided breast biopsy includes the breast coil, grid, and vacuum-assisted breast biopsy apparatus. Experienced breast …

Provider Perceptions Of Virtual Reality As A Therapeutic Tool, Margaret Eberts, Christine Vincent, Tejal U. Naik, Md, Virginia O'Hayer

Phase 1

Introduction: Virtual reality (VR) shows significant potential as a healthcare tool, especially in the management of anxiety disorders and pain. However, despite recent studies demonstrating the effectiveness of VR, there continues to be limited use among providers. A lack of resources and understanding of the feasibility of clinical VR use may present a significant barrier for VR implementation. Through studying the perceptions of providers using VR clinically, this study aims to understand the achievability of VR as a standardized therapy.

Methods: Researchers distributed an online, self-administered questionnaire to healthcare providers identified on VR application websites. The questionnaire consisted of five …

Relationship Between Preoperative Frailty And Postoperative Outcomes After Lvad Implantation, Katherine L. Wilhelm

DNP Projects

Abstract

Background: Frailty is common in many patients with advanced heart failure, including those who undergo left ventricular assist device (LVAD) implantation. Frailty has been associated with worse outcomes after other cardiac surgeries; however, little is known about the effect of frailty on postoperative outcomes after LVAD implant.

Purpose: The purpose of this project was to evaluate whether preoperative frailty [as determined by either short physical performance battery (SPPB) score ≤ 7/12 or 6-minute walk test (6-MWT) <200 >meters] is associated with poorer postoperative outcomes after LVAD implantation than non-frailty in adults with advanced heart failure.

Setting and Sample: This project …

Firefighters Self-Efficacy Of Injuries And Willingness To Report Injuries Within The Southeast Region Of The United States, Marissa Villafuerte

College of Graduate Studies: Theses & Dissertations

CONTEXT: Firefighting is a dangerous profession often leading to minor and severe injuries. Injuries range from basic first aid to fatalities. Over a third of injuries linked to muscular-skeletal injuries (MSKI). To address MSKI, the fire service has turned to preventative and rehabilitation care such as on-site health care professionals.

OBJECTIVE: The purpose of this study was 1) to understand rural firefighters' self-efficacy of injury care and willingness to report MSKIs, 2) compare on-site preventative care fire departments to traditional fire departments and 3) describe the influence of on-site self-efficacy of MSKI care and willingness to report injuries based on …

Biocompatible And Multifunctional Trityl Spin Probes For Electron Paramagnetic Resonance Spectroscopy, Teresa D. Gluth

Graduate Theses, Dissertations, and Problem Reports (ETD)

The primary objective of my thesis was to develop and utilize a biocompatible multifunctional trityl spin probe for concurrent measurement of pO₂, pH_e, and [P_i] in vivo by electron paramagnetic resonance (EPR) spectroscopy (Chapter 2). My first goal was to synthesize the proposed probe we are terming HOPE71. Secondly, HOPE71 was characterized by X-band and L-band EPR spectroscopy. Next, the biocompatibility of HOPE71 was assessed through an albumin binding test, cytotoxicity assays, and in vivo intravenous tolerance. Then, the use of HOPE71 to measure the target parameters was demonstrated in a breast cancer …

Harnessing Acoustic Streaming For Bioanalysis In Microfluidics, Xiaojun Li

Graduate Theses, Dissertations, and Problem Reports (ETD)

In the past few decades, microfluidic technology has been developed rapidly in both fabrication methods and multifunctionality integrations, making it a powerful tool for a wider variety of biological applications. The device fabrication method has expanded from conventional polymer-based micro devices to 3D-printed micro devices, and allows multiple functions such as electric, optic, magnetic and acoustic to be integrated on a single platform. This dissertation focuses on method development of acoustic streaming-based microfluidics in bioanalysis such as immunoassay, enzyme kinetics and DNA fragmentation analysis. In this dissertation, a micromixer was developed based on acoustic streaming generated from sharp-edge structure vibration …

Ecg Monitoring In Athletes, Jalal Jwayyed, Kelly Purgason, Joseph Linder, Annamarie Alfery, Silvia Furman

Williams Honors College, Honors Research Projects

Athletes and medical personnel need reliable methods to monitor vital signs and detect potentially life-threatening issues before they occur. Electrocardiograph (ECG) monitors are currently the best method of detecting heart-related health issues. Current ECG monitors worn by athletes are difficult to use and lack the ability to track ECGs in real time. Through research and interviews with various clinicians, further problems have been identified that include poor electrode adhesion, and a lack of compatibility with the equipment worn by athletes. Our team proposes to develop solutions that will improve performance and comfort associated with ECG monitors for athletic applications. This …

Burnout With Caregiving Of Autism And The Covid19 Pandemic, Erin Babcock, Leah Recker

Williams Honors College, Honors Research Projects

I am working with Leah Recker and we are doing research on parent/caregiver burnout of those with children that have autism, especially during COVID. We are creating a survey on Qualtrics, using stem questions followed by Likert scale items, which we will then send to the Director of Programs, Lisa Thompson, at Autism Society of Greater Akron. She will then pass it along to the parents and caregivers within their community, via Facebook or their weekly newsletter. Parents/caregivers will have the opportunity to complete the survey and we will receive the results when done so. We will then analyze the …

The Influence Of The Psychophysical Assessment Paradigm On Pitch Discrimination For Adults (And A Pilot Sample Of Children), Ashley G. Flagge, Lucile Puranen, Madhuri S. Mulekar

Ashley Flagge Publications

Pitch discrimination ability has been of research interest due to its potential relationship to language and literacy. However, assessment protocols for pitch discrimination have varied widely. Prior studies with both children and adults have produced conflicting performance findings across different pitch discrimination research paradigms, though they have consistently shown that discrimination accuracy is based on the psychophysical assessment method applied. In the present study, we examined pitch discrimination performance among convenience samples of 19 adult women and ten female children across six different adaptive psychophysical measurement conditions. We found pitch discrimination performance in both groups to be impacted by the …

A Crisis Of Erasure: Transgender And Gender-Nonconforming Populations Navigating Breast Cancer Health Information, Curtis Shane Tenney, Karl J. Surkan, Lynette Hammond Gerido, Dawn Betts-Green

STEMPS Faculty Publications

In this paper, we use the topic of breast cancer as an example of health crisis erasure in both informational and institutional contexts, particularly within the transgender and gender-nonconforming population. Breast cancer health information conforms and defaults to conventional cultural associations with femininity, as is the case with pregnancy and other “single-sex” conditions (Surkan, 2015). Many health information and research practices normalize sexualities, pathologize non-normative gender (Drescher et al., 2012; Fish, 2008; Müller, 2018), and fail to recognize gender-nonconforming categories (Frohard‐Dourlent et al., 2017). Because breast cancer health information is sexually normalized, an information boundary exists for the LGBTQ+ community, …

Live Cell Biomass Tracking For Basic, Translational, And Clinical Research, Graeme Murray

Theses and Dissertations

Single cell mass is tightly regulated throughout generations and the cell cycle, making it an important marker of cell health. Abnormal changes in cell size can be the first indication of dysfunction in response to environmental stimuli such as cytotoxic drugs. Described here is the further development of high-speed live cell interferometry (HSLCI) to concurrently measure the changes in single cell mass of thousands of cells over time. Critically, the high-throughput nature of HSLCI provides realistic pictures of tumor heterogeneity. This throughput enabled HSLCI to correctly predict in vivo carboplatin sensitivity of three triple negative breast cancer patient derived xenografts, …