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2020

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Articles 1 - 30 of 122

Full-Text Articles in Analytical, Diagnostic and Therapeutic Techniques and Equipment

The Use Of Life-Like Robotic Animals In The Acute Care Setting To Assist In The Care Of Patients With Dementia, Abby Denby Dec 2020

The Use Of Life-Like Robotic Animals In The Acute Care Setting To Assist In The Care Of Patients With Dementia, Abby Denby

Doctors of Nursing Practice (DNP) Final Projects, 2020-current

The purpose of this pilot project was to describe the effect of life-like robotic animals on the nurses’ ability to provide care, patients’ level of agitation, use of antipsychotic medications, restraint and sitter use for patients with dementia in an acute care setting. Nurses report challenges and feelings of helplessness while caring for patients with dementia. Dementia may cause depression, agitation, aggression (physical or verbal) and a decrease quality of life. Animal Assisted Therapy (ATT) is a growing therapy in many healthcare settings but there is a lack of literature specifically related to the use of AAT in the acute …


Hips That Harm: When Medical Devices Fail Women, Sophie N. Putka Dec 2020

Hips That Harm: When Medical Devices Fail Women, Sophie N. Putka

Capstones

Medical devices that save the lives of thousands of Americans each year advance at a rapid pace - but some of them consistently leave women behind. When it comes to joint replacements and even heart devices, women have worse health outcomes. Behind this preventable problem is a system that overlooks women from start to finish. Female bodies are different from male bodies, but women are often underrepresented in medical trials for device approval. Women’s participation in clinical testing for devices has increased, but there’s rarely a detailed analysis of performance by sex, and even less information on women by race …


Transanastomotic Feeding Tube In Surgical Management Of Congenital Duodenal Obstruction: Case Series, Hardian Gunardi, Asri D. Rachmawati, Nanok E. Susilo, Riana P. Tamba Dec 2020

Transanastomotic Feeding Tube In Surgical Management Of Congenital Duodenal Obstruction: Case Series, Hardian Gunardi, Asri D. Rachmawati, Nanok E. Susilo, Riana P. Tamba

The New Ropanasuri Journal of Surgery

Introduction. Prolonged fasting is a major concern in the postoperative management of congenital duodenal obstruction. Massive dilatation of the proximal segment would lead to diameter discrepancy and lack of propulsion, thus delaying enteral feeding. A transanastomotic feeding tube is an option to deliver early enteral feeding after surgical correction. The study evaluates the effectiveness and safety of a transanastomotic feeding tubes in the surgical management of congenital duodenal obstruction.

Method. The transanastomotic feeding tube's effectiveness in cases of congenital duodenal obstruction of the newborn underwent surgical correction was evaluated. Those managed from January 2016 to December 2018 at …


A Comparison Of 4-Year Total Medical Care Costs, Adverse Outcomes, And Opioid/Prescription Analgesic Use For 3 Knee Osteoarthritis Pain Treatments: Intra-Articular Hyaluronic Acid, Intra-Articular Corticosteroids, And Knee Arthroplasty., John Mackowiak, John T Jones, Vinod Dasa Dec 2020

A Comparison Of 4-Year Total Medical Care Costs, Adverse Outcomes, And Opioid/Prescription Analgesic Use For 3 Knee Osteoarthritis Pain Treatments: Intra-Articular Hyaluronic Acid, Intra-Articular Corticosteroids, And Knee Arthroplasty., John Mackowiak, John T Jones, Vinod Dasa

School of Medicine Faculty Publications

To compare the medical costs associated with treatments for knee osteoarthritis (OA): intra-articular corticosteroids (ICS) and intra-articular hyaluronic acid (IHA) primarily, and ICS/IHA vs knee arthroplasty (TKA) secondarily. This was a retrospective analysis of an insurance claims database. Eligible members had diagnosed OA and no claims for ICS, IHA, or TKA during the 6–18-month look-back period. Cohorts of interest over the 4-year observation period were: patients who received ICS only, those who received IHA only, and those who received TKA only. Outcomes assessed included: (1) total allowed medical costs, (2) claims for pre-specified, treatment-related adverse outcomes and costs, and (3) …


Cardiac Electrophysiology: Exploring Racial And Gender Outcomes Of Treatment Of Paroxysmal And Persistent Atrial Fibrillation Using Sotalol And Dofetilide, Nicole Lanette Bradford-Love Dec 2020

Cardiac Electrophysiology: Exploring Racial And Gender Outcomes Of Treatment Of Paroxysmal And Persistent Atrial Fibrillation Using Sotalol And Dofetilide, Nicole Lanette Bradford-Love

Dissertations

Purpose

The purpose of this study is to explore the association between gender and racial lines in the conversion and sustainment of normal sinus rhythm (NSR) from paroxysmal atrial fibrillation (PAF) and persistent atrial fibrillation using the anti-arrhythmic drugs (AADs) sotalol and dofetilide.

Methods

A secondary data analysis was performed to assess the relationships of the independent and dependent variables listed above. Using SPSS v. 24 descriptive statistics were obtained and initially evaluated for accuracy with histograms. A cross-tabulation frequency table was produced to determine the number of variables that fell into each dependent category. Following this, the frequencies were …


Using Collaborative Objective Simulation Clinical Evaluation With Undergraduate Nursing Students And Nurse Anesthesia Students Labor Epidural Placement In An Active Labor Patient, Chaka K. Jackson, Aisha Pierre Dec 2020

Using Collaborative Objective Simulation Clinical Evaluation With Undergraduate Nursing Students And Nurse Anesthesia Students Labor Epidural Placement In An Active Labor Patient, Chaka K. Jackson, Aisha Pierre

Doctoral Projects

Developing interdisciplinary teamwork and patient communication skills are essential for the student registered nurse anesthetist (SRNA) to provide quality patient care when administering epidural anesthesia. The synthesis of the evidence revealed limited available information on simulation use for SRNA epidural administration and collaboration. This doctoral project examined the effectiveness of learning through traditional simulation to enhance communication and collaboration between the Bachelor of Science in Nursing (BSN) and the Nurse Anesthesia Program (NAP) students. The BSN and NAP students were provided with a simulation environment to care for a laboring patient while improving patient safety and quality outcomes. The project …


Assessing Disease Severity Of Diabetic Retinopathy Using Novel Graphical Interpretation Of Flicker Electroretinogram, Anjalee Choudhury, Jonas Moses, Victor Gonzalez Nov 2020

Assessing Disease Severity Of Diabetic Retinopathy Using Novel Graphical Interpretation Of Flicker Electroretinogram, Anjalee Choudhury, Jonas Moses, Victor Gonzalez

MEDI 9331 Scholarly Activities Clinical Years

Purpose: To assess the clinical value of reporting full-field electroretinogram (eg, flicker ERG) findings graphically to determine the severity of diabetic retinopathy (DR) within an office-based setting.

Methods: Patients with type 2 diabetes mellitus were included and classified into varying degrees of DR based on presence and severity. Flicker ERG responses were recorded and compared between groups.

Results: Between the varying disease stages, significant differences in the mean magnitude and phase values were found. There was also a significant difference between the proportions of the magnitude and phase color-coded frequencies between groups of severity and threat to …


Anesthetic Use In Status Epilepticus: A Concise Review, Furkan M. Yilmaz Md., Lauren A. Igneri Pharmd, Yasir A. Yilmaz Md., Evren Burakgazi-Dalkilic Md. Oct 2020

Anesthetic Use In Status Epilepticus: A Concise Review, Furkan M. Yilmaz Md., Lauren A. Igneri Pharmd, Yasir A. Yilmaz Md., Evren Burakgazi-Dalkilic Md.

Cooper Rowan Medical Journal

The purpose of this review is to summarize the recent literature focusing on intravenous (IV) administration of commonly used anesthetics, including midazolam, pentobarbital/ thiopental, propofol, and ketamine in the treatment of status epilepticus (SE). Anesthetics should be reserved as third-line therapy for the treatment of SE when benzodiazepines and other second-line agents fail to terminate the seizure. We have reviewed the literature related to the treatment of status epilepticus, refractory status epilepticus, super-refractory status epilepticus, anesthetics, midazolam, pentobarbital/thiopental, propofol, and ketamine. This paper focuses on the pharmacology, dosages, major side effects, and clinical use of IV anesthetics in the treatment …


Validation Of An Endometrial Tumor Diameter Model For Risk Assessment In The Absence Of Lymph Node Mapping, Mckayla J. Riggs, Callie M. Cox Bauer, Caela R. Miller, James K. Aden, Scott A. Kamelle Oct 2020

Validation Of An Endometrial Tumor Diameter Model For Risk Assessment In The Absence Of Lymph Node Mapping, Mckayla J. Riggs, Callie M. Cox Bauer, Caela R. Miller, James K. Aden, Scott A. Kamelle

Journal of Patient-Centered Research and Reviews

Purpose: This study aimed to assess the optimal tumor diameter for predicting lymphatic metastasis and to determine intraoperatively the need for lymph node dissection in patients with endometrioid endometrial cancer.

Methods: Military beneficiaries diagnosed with stage I–III endometrioid endometrial cancer during 2003–2016 who had at least 7 pelvic and/or paraaortic lymph nodes removed during the time of hysterectomy were studied. Tumor diameter was compared against the presence of positive nodes, using the prior models of 20 mm (ie, Mayo model) and 50 mm (ie, Milwaukee model), to determine the false-negative rate of each threshold. A separate analysis was completed to …


Cole Relaxation Frequency As A Prognostic Parameter For Breast Cancer, William D. Gregory, Shahila Mehboob Christie, John Shell, Georges J. Nahhas, Maharaj Singh, Wendy Mikkelson Oct 2020

Cole Relaxation Frequency As A Prognostic Parameter For Breast Cancer, William D. Gregory, Shahila Mehboob Christie, John Shell, Georges J. Nahhas, Maharaj Singh, Wendy Mikkelson

Journal of Patient-Centered Research and Reviews

We previously reported successful classification of breast cancer versus benign tissue using the Cole relaxation frequency measured on tissue excised during breast surgery as part of a study at two urban hospitals in the U.S. Midwest. Using that health system’s cancer registry, we have discovered retrospectively that outcomes for patients who participated in the initial study can be classified correctly in 3 well-differentiated categories: nonrecurrent (NR); recurrent with no metastasis (RNM); and recurrent with metastasis (RM). As Cole relaxation frequency increases, the classification moves from NR to RNM and finally to RM. Multivariate analysis showed a significant association of “time-cancer-free” …


Conference Proceedings: Aurora Scientific Day 2020 Oct 2020

Conference Proceedings: Aurora Scientific Day 2020

Journal of Patient-Centered Research and Reviews

Abstracts published in this supplement were among those presented at the 46th annual Aurora Scientific Day research symposium, held virtually on May 20, 2020. The symposium provides a forum for describing research studies conducted by faculty, fellows, residents, and allied health professionals affiliated with Wisconsin-based Aurora Health Care, a part of the Advocate Aurora Health health system, which publishes the Journal of Patient-Centered Research and Reviews.


Cyclosporine Shows Benefit As Compared To Methotrexate For Treatment Of Pediatric Atopic Dermatitis Refractory To Topical Medications When Rapidity Of Clinical Response Is Of Key Importance To The Patient, Connor R. Buechler, Steven Daveluy Md Oct 2020

Cyclosporine Shows Benefit As Compared To Methotrexate For Treatment Of Pediatric Atopic Dermatitis Refractory To Topical Medications When Rapidity Of Clinical Response Is Of Key Importance To The Patient, Connor R. Buechler, Steven Daveluy Md

Clinical Research in Practice: The Journal of Team Hippocrates

A clinical decision report appraising El-Khalawany MA, Hassan H, Shaaban D, Ghonaim N, Eassa B. Methotrexate versus cyclosporine in the treatment of severe atopic dermatitis in children: a multicenter experience from Egypt. European Journal of Pediatrics. 2012;172(3):351-356. https://doi.org10.1007/s00431-012-1893-3 for a pediatric patient with severe atopic dermatitis.


An Unexpected Outcome Of A Pediatric Simulation Encounter For Occupational Therapy Students., Anne H. Zachry, K. Booker, S. B. Lancaster Oct 2020

An Unexpected Outcome Of A Pediatric Simulation Encounter For Occupational Therapy Students., Anne H. Zachry, K. Booker, S. B. Lancaster

Faculty Presentations

This presentation reviewed how to plan and implement a pediatric simulated educational experience to align with the targeted course learning objective(s). Participants learned how to incorporate best practices into simulation education in order to advance occupational therapy education.


The Role Of Adhesives In Dermatologic Surgery: Tips, Tricks And Review, Adam Chahine, Stefanie Lynn Altmann, Mariam Salman, Karthik Krishnamurthy Oct 2020

The Role Of Adhesives In Dermatologic Surgery: Tips, Tricks And Review, Adam Chahine, Stefanie Lynn Altmann, Mariam Salman, Karthik Krishnamurthy

Dermatology

Background: The utilization of tissue adhesives for wound closure has historically been well established in the emergency department setting. More recently, it has been adopted by dermatologists and other surgical specialties as an alternative or adjunct to more traditional bilayered wound closures.

Purpose: This serves as a comprehensive review of the available scientific literature on the utilization of tissue adhesives compared to traditional bilayered closures. We discuss benefits, drawbacks, as well as novel surgical techniques, as applicable to dermatologic surgery.

Methods: A literature review was performed using Pubmed and MEDLINE for relevant articles related to the use of adhesives and …


Age Based Evaluation Of Nut Aspiration Risk., Jill N D'Souza, Taher S Valika, Bharat Bhushan, Jonathan B Ida Oct 2020

Age Based Evaluation Of Nut Aspiration Risk., Jill N D'Souza, Taher S Valika, Bharat Bhushan, Jonathan B Ida

School of Medicine Faculty Publications

Objective: To identify an age at which initiation of whole nut into the pediatric diet could be considered safe, by evaluating the age distribution of children undergoing bronchoscopy with removal of nut or seed material from the airway. Method: A retrospective chart review over a ten-year period identifying children age 0–18 that have undergone bronchoscopy with retrieval of airway foreign bodies. A statistical analysis of demographic data was carried out to identify age distribution of aspiration events. Results: Sixty-four cases of foreign body aspiration were identified, of which 43 (67%) were of organic origin, specifically nuts. A Fisher's exact test …


Transcutaneous Energy Transmission: Can We Do It Now?, Yuriy Pya Oct 2020

Transcutaneous Energy Transmission: Can We Do It Now?, Yuriy Pya

The VAD Journal

The percutaneous driveline used in contemporary LVADs presents a continuous risk of infection for the duration of support. Minimizing infection in durable mechanical circulatory support systems requires total implantation of all components and energy transfer by means other than percutaneous drivelines. A novel coplanar energy transfer (CET) system, similar to the original transcutaneous energy transfer (TET) design, is unique by incorporating two large rings with coil-within-the-coil topology to ensure strong resonance power. The CET system consists of an internal integrated controller, a battery coupled with an internal thoracic coil ring, and the LVAD pump. External equipment includes a power transmission …


Training For A Marathon – Responding To A Pandemic, Mary I. Fisher Oct 2020

Training For A Marathon – Responding To A Pandemic, Mary I. Fisher

Physical Therapy Faculty Publications

No abstract provided.


Physical Activity After Delivery: A Feasibility Study, Antonio Gonzalez Fiol, Md, Geoffrey Ho, Mbbs, Dongchen Li, Md, Richard Amdur, Phd, Chapman Wei, Md, Homa K. Ahmadzia, Md, Marianne David, Md, Christopher Jackson, Md, Jeffrey S. Berger, Md, Mba Oct 2020

Physical Activity After Delivery: A Feasibility Study, Antonio Gonzalez Fiol, Md, Geoffrey Ho, Mbbs, Dongchen Li, Md, Richard Amdur, Phd, Chapman Wei, Md, Homa K. Ahmadzia, Md, Marianne David, Md, Christopher Jackson, Md, Jeffrey S. Berger, Md, Mba

Anesthesiology and Critical Care Medicine Faculty Publications

Background: Early mobility is one of the main goals of the enhanced recovery after cesarean delivery, yet it is rarely objectively measured. Benefits related to this goal include mechanical prevention of deep venous thrombosis and early discharge.

Methods: We conducted a multi-center prospective study in which an activity tracker was utilized to measure the steps taken by patients after delivery. The primary outcome was steps taken after vaginal or cesarean delivery. Secondary outcomes was factors affecting ambulation (e.g pain/satisfaction with pain management and mode of delivery).

Results: Data from 50 postpartum patients were analyzed. Vaginal delivery patients took more cumulative …


The Clinical Relevance Of Cement Volume In Percutaneous Vertebral Augmentation, Ravi G. Mirpuri, Madhuri Are, Virginia Hardie, Michael J. Warden, Robin High Sep 2020

The Clinical Relevance Of Cement Volume In Percutaneous Vertebral Augmentation, Ravi G. Mirpuri, Madhuri Are, Virginia Hardie, Michael J. Warden, Robin High

Graduate Medical Education Research Journal

Introduction: Vertebroplasty and Kyphoplasty are two forms of percutaneous vertebral augmentation (PVA), in which polymethylmethacrylate cement is used to stabilize vertebral compression fractures (VCF). This study sought to evaluate the relationship between cement volume and clinical outcomes, including pain reduction, opioid use, and complication rate.

Methods: Retrospective chart review produced 88 patients who received PVA at a tertiary care outpatient pain clinic. Cement volume, type of PVA, gender, level (thoracic vs lumbar) were collected, as well as clinical outcomes of numeric pain score (NPS) reduction, opioid percent change (OPC), and complications. Both pre-procedure and post-procedure (between 2-4 weeks) data were …


Ponv Prophylaxis Failure Disproportionately Affects Female Patients, Despite Intraoperative Computerized Decision Support Guidance, Karl A. Krieser, John B. Riley Iii, Jospeh E. Baus, Julie T. Hoffman, James N. Sullivan Md, Robert L. Lobato Sep 2020

Ponv Prophylaxis Failure Disproportionately Affects Female Patients, Despite Intraoperative Computerized Decision Support Guidance, Karl A. Krieser, John B. Riley Iii, Jospeh E. Baus, Julie T. Hoffman, James N. Sullivan Md, Robert L. Lobato

Graduate Medical Education Research Journal

Objectives: To compare postoperative nausea and vomiting (PONV) prophylaxis treatment and outcomes based on patients’ sex, using a retrospective cohort. The setting was the operating room and post-anesthesia care unit of a tertiary care university medical center.

Patients: A total of 678 adult male and female patients with American Society of Anesthesiologist (ASA) scores of 1-4 underwent surgery with general anesthesia. All patients received preoperative PONV risk assessment. PONV prophylaxis was administered at the discretion of the anesthesia care team members with guidance from a computerized decision support system.

Measurements: Adequacy of prophylaxis was retrospectively determined based on individual patient …


Parent Responses To Pediatric Pain: The Differential Effects Of Ethnicity On Opioid Consumption, Candice D. Donaldson, Brooke N. Jenkins, Michelle A. Fortier, Michael T. Phan, Daniel M. Tomaszewski, Sun Yang, Zeev N. Kain Sep 2020

Parent Responses To Pediatric Pain: The Differential Effects Of Ethnicity On Opioid Consumption, Candice D. Donaldson, Brooke N. Jenkins, Michelle A. Fortier, Michael T. Phan, Daniel M. Tomaszewski, Sun Yang, Zeev N. Kain

Psychology Faculty Articles and Research

Objective

Within the context of the United States opioid epidemic, some parents often fear the use of opioids to help manage their children's postoperative pain. As a possible consequence, parents often do not dispense optimal analgesic medications to their children after surgery, putting their children at risk of suffering from postsurgical pain. The objective of this research was to assess ethnicity as a predictor of both pain and opioid consumption, and to examine how Hispanic/Latinx and Non-Hispanic White parents alter their child's opioid consumption in response to significant postsurgical pain.

Methods

Participants were 254 children undergoing outpatient tonsillectomy and/or adenoidectomy …


Estimating Partial Body Ionizing Radiation Exposure By Automated Cytogenetic Biodosimetry, Peter Rogan Sep 2020

Estimating Partial Body Ionizing Radiation Exposure By Automated Cytogenetic Biodosimetry, Peter Rogan

Biochemistry Publications

Purpose: Inhomogeneous exposures to ionizing radiation can be detected and quantified with the Dicentric Chromosome Assay (DCA) of metaphase cells. Complete automation of interpretation of the DCA for whole body irradiation has significantly improved throughput without compromising accuracy, however low levels of residual false positive dicentric chromosomes (DCs) have confounded its application for partial body exposure determination.

Materials and Methods: We describe a method of estimating and correcting for false positive DCs in digitally processed images of metaphase cells. Nearly all DCs detected in unirradiated calibration samples are introduced by digital image processing. DC frequencies of irradiated calibration …


Pathophysiology And Proteogenomics Of Post-Infectious And Post-Hemorrhagic Hydrocephalus In Infants, Albert M. Isaacs Aug 2020

Pathophysiology And Proteogenomics Of Post-Infectious And Post-Hemorrhagic Hydrocephalus In Infants, Albert M. Isaacs

Arts & Sciences Electronic Theses and Dissertations

Post-infectious (PIH) and post-hemorrhagic (PHH) hydrocephalus occur as sequalae of neonatal sepsis or intraventricular hemorrhage (IVH) of prematurity, respectively. Together, PIH and PHH represent the most common form of infantile hydrocephalus, the most common indication for neurosurgery in children globally, and the leading cause of neurological morbidity and mortality worldwide. The lack of understanding of the pathophysiology of PIH and PHH, particularly with regards to the host central nervous system response to the antecedent infection and hemorrhage, perturbation of differentiating neural stems in the ventricular (VZ) and subventricular (SVZ) zones, and damage to periventricular white matter (PVWM) tracts carrying sensorimotor …


Detection Of Left Ventricular Thrombi On Cardiac Magnetic Resonance Viability Studies, Donya Ahmed Alhassan, Khawaja Bilal Waheed, Muhammad Nasim Sharif, Muhammad Zia Ulhassan, Fazal Ghaffar, Khaled Saleh Saleem, Emad Fouad Mahmoud Said, Bayan Mohammed Altalaq, Zechariah Jebakumar Arulanantham, Ahmad Omar Qarmash Aug 2020

Detection Of Left Ventricular Thrombi On Cardiac Magnetic Resonance Viability Studies, Donya Ahmed Alhassan, Khawaja Bilal Waheed, Muhammad Nasim Sharif, Muhammad Zia Ulhassan, Fazal Ghaffar, Khaled Saleh Saleem, Emad Fouad Mahmoud Said, Bayan Mohammed Altalaq, Zechariah Jebakumar Arulanantham, Ahmad Omar Qarmash

Journal of the Saudi Heart Association

Objective: To highlight detection of left ventricular thrombi on cardiac magnetic resonance (CMR) viability studies.

Method: This retrospective observational study was conducted in the Radiology Department at our Hospital in Dhahran, from April 2015-2019. All recently re-perfused (post-percutaneous coronary intervention/ PCI) patients with ST-segment elevation myocardial infarctions (STEMI), having low ejection fractions (

Results: Of the 125 patients, most were men (71.2%) with a mean age of 56.78 years. Eleven patients had left ventricular thrombi (8.8%), and most of these were anterior wall infarctions with low ejection fractions (

Conclusion: Left ventricular thrombi can be detected on cardiac viability studies …


Therapeutic Potential Of A Ketogenic Diet In The Treatment Of Major Depressive Disorder, Jordan A. Murrin Aug 2020

Therapeutic Potential Of A Ketogenic Diet In The Treatment Of Major Depressive Disorder, Jordan A. Murrin

Masters Theses, 2020-current

Major depressive disorder (MDD) is the second most common mental health condition and a leading cause of disability in the world. It is theorized that MDD develops from a combination of biological, psychological, and social stressors. The condition is typically treated using pharmaceuticals and psychotherapy. However, not all individuals with MDD have access to or choose to use these treatments, or may prefer to incorporate therapeutic lifestyle changes such as exercise, sleep, and healthy eating. Even with treatment, MDD can alter brain structure and function, leading to the development of comorbid mental health and chronic metabolic conditions like obesity, cardiovascular …


The Impact Of Multiplex Respiratory Pathogen Pcr Testing At A Large Academic Institution, Hailey Reiss, Jarrod W. Kile Rphd, Bcps, Eric Young Md Aug 2020

The Impact Of Multiplex Respiratory Pathogen Pcr Testing At A Large Academic Institution, Hailey Reiss, Jarrod W. Kile Rphd, Bcps, Eric Young Md

Research Scholars Poster Presentation

No abstract provided.


Investigating The Metabolic Progression Of Glioblastoma With Hyperpolarized Magnetic Resonance, Travis Salzillo Aug 2020

Investigating The Metabolic Progression Of Glioblastoma With Hyperpolarized Magnetic Resonance, Travis Salzillo

Dissertations & Theses (Open Access)

Rapid diagnosis and therapeutic monitoring of aggressive diseases such as glioblastoma (GBM) can improve patient survival by providing physicians the time to optimally deliver treatment. This includes early in development, while the tumor is still manageable, or following initial therapy, when alternative treatments should be considered. The main goal of this project was to determine whether metabolic imaging with hyperpolarized magnetic resonance spectroscopy (MRS) could detect changes in tumor progression more rapidly than conventional anatomic magnetic resonance imaging (MRI) in patient-derived GBM murine models. To comprehensively capture the dynamic nature of cancer metabolism, in vivo pyruvate-to-lactate conversion with hyperpolarized MRI, …


Development Of A Ct Metal Artifact Management Algorithm For Proton Therapy Planning (Ampp) For Head And Neck Cancer Patients, Daniela Branco Aug 2020

Development Of A Ct Metal Artifact Management Algorithm For Proton Therapy Planning (Ampp) For Head And Neck Cancer Patients, Daniela Branco

Dissertations & Theses (Open Access)

Purpose: Dental amalgams (high Z materials) are common sources of artifacts in Head and Neck (HN) images. Commercial artifact reduction techniques have been offered, but many are impractical, produce inaccurate CT images or are not clinically available, thus not widely implemented. The goal of this work is to use CT gantry tilts to develop and evaluate a stereoscopic HN metal artifact management algorithm and investigate its improvement in proton treatment planning.

Methods: The in-house CT metal artifact management method for proton planning (AMPP) uses two angled CT scans to generate a single image set with no metal artifacts posterior …


Machine Learning Approaches For Fracture Risk Assessment: A Comparative Analysis Of Genomic And Phenotypic Data In 5130 Older Men, Qing Wu, Fatma Nasoz, Jongyun Jung, Bibek Bhattarai, Mira V. Han Jul 2020

Machine Learning Approaches For Fracture Risk Assessment: A Comparative Analysis Of Genomic And Phenotypic Data In 5130 Older Men, Qing Wu, Fatma Nasoz, Jongyun Jung, Bibek Bhattarai, Mira V. Han

Public Health Faculty Publications

The study aims were to develop fracture prediction models by using machine learning approaches and genomic data, as well as to identify the best modeling approach for fracture prediction. The genomic data of Osteoporotic Fractures in Men, cohort Study (n = 5130), were analyzed. After a comprehensive genotype imputation, genetic risk score (GRS) was calculated from 1103 associated Single Nucleotide Polymorphisms for each participant. Data were normalized and split into a training set (80%) and a validation set (20%) for analysis. Random forest, gradient boosting, neural network, and logistic regression were used to develop prediction models for major osteoporotic fractures …


Characterizing Recurrence Following Hybrid Ablation In Patients With Persistent Atrial Fibrillation, David C. Kress, Lynn Erickson, Tadele W. Mengesha, David Krum, Jasbir Sra Jul 2020

Characterizing Recurrence Following Hybrid Ablation In Patients With Persistent Atrial Fibrillation, David C. Kress, Lynn Erickson, Tadele W. Mengesha, David Krum, Jasbir Sra

Journal of Patient-Centered Research and Reviews

Purpose: It is It is widely accepted that atrial fibrillation (AF) accounts for half of arrhythmia recurrences following endocardial catheter ablation of AF. An epicardial-endocardial approach (hybrid) has emerged as an alternative to endocardial ablation alone for the treatment of AF, yet recurrence after a hybrid procedure has not been well characterized. This retrospective study is aimed at characterizing recurrence following hybrid ablation for patients with persistent AF.

Methods: Patients with persistent AF (N = 108) received both endocardial and epicardial ablation of the posterior left atrial wall using catheter ablation and a small midline surgical approach (hybrid). Presence of …