Investigative Techniques Commons^™

Studies Of Forward Projection Algorithms And Implementation On Pc And Fpga, Minsung Cho

UNLV Theses, Dissertations, Professional Papers, and Capstones

This thesis first aims to understand how a part of the computed tomography (CT) algorithm called “forward projector” (FP) works and how it can be accelerated at a hardware level. Two methods of FP are defined and studied: pixel-driven and ray-driven. Both methods fundamentally use the property of line integral and Bresenham’s algorithm. As the result of the study of the two FP methods, the ray-driven algorithm implemented in C++ performed 35% faster than the pixe-driven algorithm implemented in Python.This thesis implements the ray-driven forward projector algorithm using field-programmable gate array (FPGA), making use of hardware-acceleration techniques. The result shows …

A Machine Learning Approach For Predicting Clinical Trial Patient Enrollment In Drug Development Portfolio Demand Planning, Ahmed Shoieb

Masters Theses

One of the biggest challenges the clinical research industry currently faces is the accurate forecasting of patient enrollment (namely if and when a clinical trial will achieve full enrollment), as the stochastic behavior of enrollment can significantly contribute to delays in the development of new drugs, increases in duration and costs of clinical trials, and the over- or under- estimation of clinical supply. This study proposes a Machine Learning model using a Fully Convolutional Network (FCN) that is trained on a dataset of 100,000 patient enrollment data points including patient age, patient gender, patient disease, investigational product, study phase, blinded …

Pkpd-Model Based Preclinical Characterization Of The Activity Of Spectinamide 1599 Against Mycobacterial Subpopulations. And The Identification Of Potential Partners For Combination Therapy, Zaid Hanif Temrikar

Theses and Dissertations (ETD)

Tuberculosis is one of the top 10 causes of death worldwide and the leading cause of death from a single infectious agent prior to COVID19. Mycobacterium tuberculosis (Mtb) is the causative agent of TB. The interaction between Mtb and the immune system leads to development of diverse environmental niches and physiology within the lung of the TB patients. Mtb is thought to adapt and thrive in such an environment by transforming to different phenotypic variants. Such variants are difficult to kill and are thought to prolong TB pharmacotherapy. Spectinamide 1599 is a synthetic modification of spectinomycin that has demonstrated excellent …

Impact Of Personal, Familial, And Socioeconomic Factors On The Return Of Remotely Collected Samples For Genetic Testing, Jordan Zeiger

Dissertations & Theses (Open Access)

There are a multitude of barriers known to impact access to medical care in the United States. COVID-19 has changed and compounded these barriers and led to a shift in the setting of the genetic counseling (GC) appointment, and in sample types used for genetic testing, specifically with use of telemedicine and remotely collected saliva kits. Previous studies have described lack of patient follow-through in returning these kits. Though the understanding of barriers to medical care, including access to genetics services, is well described, there is little in the literature for how these barriers impact the return of remotely collected …

Extubation And Weaning: Implementing A Standard Weaning Protocol, Anna T. Wilhaucks, Caleb J. Fresh, Mohamed N. Khalil, Victoria K. Johnson, Tracy H. Mcclinton Dnp, Ag-Acnp-Bc

Doctor of Nursing Practice Projects

Purpose The purpose of this project is to determine if implementation of a standardized weaning protocol on mechanically ventilated patients affects reintubation rates and decreases adverse outcomes.

Esmolol Compared To Fentanyl For Hemodynamic Attenuation During Intubation: A Scoping Review, Carlie King, Robert Kirby, Mitchell Groome, Cassidy Gubin, Tracy Mcclinton Dnp, Aprn, Agacnp, Ebp-C, Dwayne Accardo Dnp, Crna, Faana

Doctor of Nursing Practice Projects

Purpose/Background

Endotracheal intubation and laryngoscopy potentiate the cardiovascular response in the form of hypertension, tachycardia, and ventricular arrhythmias. Suppression of this adrenergic response is necessary to ensure patient safety. Currently, anesthesia providers employ many methods to attenuate the sympathetic response without established guidelines. As such, our project aimed to determine the effectiveness of fentanyl compared to esmolol in attenuating the hemodynamic response during laryngoscopy and endotracheal intubation within the first five minutes and throughout the intraoperative period.

Methods

A literature review was completed of ten critically appraised articles from the years 2011-2022. Articles in the review included randomized control studies, …

Impact Of Opioid-Free Anesthesia On Postoperative Nausea & Vomiting: A Scoping Review, Madison Scholl, Miranda Morrison, Abbey Ramsey, Alexandria Sawicki, Dwayne Accardo Dnp, Crna, Aprn

Doctor of Nursing Practice Projects

Purpose The purpose of this DNP Scoping Review is to compare the current literature regarding the incidence of postoperative nausea and vomiting (PONV) in adult patients who underwent general anesthesia when opioids are used intraoperatively versus a multimodal non-opioid-based intraoperative general anesthetic plan Specific Aims: Incidence of postoperative nausea & vomiting Postoperative rescue antiemetic administration Length of stay in postoperative anesthesia care unit (PACU) Incidence of intraoperative adverse events

Decreasing Postop Delirium With Dexmedetomidine Vs Propofol, Isabel Bannister, Rn, Bsn, Srna, Abigail Kurtz, Rn, Bsn, Srna, Abigail Banko, Rn, Bsn, Srna, Reid Blaylock, Rn, Bsn, Srna, Tracy Mcclinton, Dnp, Aprn, Agacnp-Bc, Epb-C, Caitlan Bradford, Rn, Bsn, Srna

Doctor of Nursing Practice Projects

Postoperative delirium (POD) is a common complication that contributes to increased length of hospital stay, impaired recovery, and can affect long-term outcomes. Recently, research has been conducted to determine if certain anesthetic agents decrease the likelihood of developing POD. However, no clear protocol for prevention exists. This scoping review aimed to analyze the current literature to determine the efficacy of dexmedetomidine versus propofol at preventing POD.

Bi-Weekly Follow-Up Of Adult Patients Diagnosed With Schizophrenia To Increase Treatment Adherence: A Scoping Review, Garrett L. Seaton, Bsn, Rn, Michelle A. Conteh, Bsn, Rn, Shelia L. Jackson, Msn, Bsn, Rn, Sharon H. Little, Dnp, Fnp-Bc, Aprn

Doctor of Nursing Practice Projects

Purpose/Background

Schizophrenia is a complex psychiatric disorder that can significantly affect a patient’s psychological state. Because of this, medication nonadherence is reported as one of the most common causes of relapse and rehospitalization in patients diagnosed with schizophrenia. Although long-acting injectable (LAI) antipsychotics can help provide more continuous treatment, they do not address other factors that affect treatment adherence. This scoping review will evaluate existing literature to assess if a multimodal approach, such as increased patient follow-ups in addition to scheduled, current-practice LAI treatment and management, may increase treatment adherence in adult patients diagnosed with schizophrenia.

Methods

A database search …

Icu Delirium: Detection With And Without Cam-Icu Screening, Kiara Nicole Felix, Anita Larkin, Kathryn Lynn, Latoya Reed, Tracy Mcclinton Dnp, Ag-Acnp-Bc

Doctor of Nursing Practice Projects

Purpose/Background

Delirium is a form of brain malfunction marked by abnormalities in cognition, disorientation, memory, and awareness. This scoping review's aim is to examine bodies of research on the effects of length of stay (LOS) in the ICU using Confusion Assessment Method-Intensive Care Unit (CAM-ICU).

Methods

Adults age 18 and older admitted to the ICU, of any race or ethnicity, and any gender were all included in the study articles. Nine articles satisfied the search criteria after publications underwent rapid critical appraisal. Results were evaluated for ICU LOS, hospital LOS, mortality, restraint use, medication use, delirium screening tool use, and …

Suicide Screening Among Adolescents With A History Of Mental Or Physical Abuse- Evaluating The Effectiveness Of Suicide Screening: A Scoping Review, Tiffany Nicole Jackson Bsn, Rn, Cody Tyler Cottrell Bsn, Rn, Allison Tucker Mcculley Bsn, Rn, Cen, Sharon Little Dnp, Aprn, Fnp-Bc

Doctor of Nursing Practice Projects

Purpose The purpose of this scoping review is to gather evidence on best practice for the administration of pediatric suicide screening in a variety of healthcare settings.

Long-Acting Injectable Antipsychotics Vs. Oral Antipsychotics In Treatment Adherence: Efficacy And Equity Of Care, Jason P. Peter Msn, Aprn, Fnp-Bc, Ashley F. Walker Bsn, Rn, Sharon Little Dnp, Aprn, Fnp-Bc

Doctor of Nursing Practice Projects

Summary

Background: Compliance with oral antipsychotic medications (OAP) in the treatment of patients with schizophrenia has been a challenge. Challenges to OAP include medication side effects, lack of ability to obtain medications, and missing doses, among other factors. As a result of this non-compliance, those taking oral antipsychotic medication are at greater risk for exacerbation of their illness. The consequence of relapse carries considerable risks with each psychotic event. The study aims to compare if medication treatment adherence is greater in clients with schizophrenia using oral antipsychotics (OAPs) vs. long-acting injectable (LAI) antipsychotic medications.

Methods: In this scoping review, 15 …

How Does School-Based Depression Education Effect Depression Scores: A Scoping Review, Hannah Kliewer Bsn, Rn, Grayson Sheley Bsn, Rn, Sally Humphrey Dnp, Aprn, Cpnp-Pc

Doctor of Nursing Practice Projects

Purpose:

The purpose of this scoping review is to provide a detailed look into depression education courses among adolescents, ages 10-19 years old, and determine if the adolescents’ knowledge, attitudes, and beliefs regarding depression are impacted.

Specific Aims: •Determine the impact of a school-based depression education program •Evaluate programs for early knowledge and prevention of depression •Compare the current school curriculum with the addition of depression education

Head And Neck Tumor Histopathological Image Representation With Pre- Trained Convolutional Neural Network And Vision Transformer, Ranny Rahaningrum Herdiantoputri, Daisuke Komura, Tohru Ikeda, Shumpei Ishikawa

Journal of Dentistry Indonesia

Image representation via machine learning is an approach to quantitatively represent histopathological images of head and neck tumors for future applications of artificial intelligence-assisted pathological diagnosis systems. Objective: This study compares image representations produced by a pre-trained convolutional neural network (VGG16) to those produced by a vision transformer (ViT-L/14) in terms of the classification performance of head and neck tumors. Methods: W hole-slide images of five oral t umor categories (n = 319 cases) were analyzed. Image patches were created from manually annotated regions at 4096, 2048, and 1024 pixels and rescaled to 256 pixels. Image representations were …

Effectiveness Of Perioperative Ketorolac Versus Opioids: A Scoping Review, Jamie Smith Bsn, Srna, Ashley Warner Bsn, Srna, Oran Tubre Bsn, Srna, Sherman Stauffer Bsn, Srna, Dwayne Accardo Dnp, Crna

Doctor of Nursing Practice Projects

Abstract

Purpose

The purpose of this project will compare the effectiveness of ketorolac over opioids alone for pain management of patients 72 hours postoperatively.

Background

In recent years, there has been overwhelming evidence of opioid abuse and its adverse effects on patients’ lives. To combat this, significant attention has been paid to multimodal analgesia throughout the perioperative period to decrease patients’ exposure to opioids. Non-steroidal anti-inflammatory drugs (NSAIDs), such as ketorolac, are being administered intraoperatively to reduce the need for opioids in patients' post-surgical procedures.

Methods

A literature review was done on articles that evaluated perioperative adult human patients undergoing …

Impact Of Mobile Text Reminders On Medication Compliance, Paul Weatherly, Haley Russell, Michelle Rickard Dnp, Cpnp-Ac

Doctor of Nursing Practice Projects

Purpose/Background

Patient noncompliance with medication leads to longer and more frequent infections and health issues. Using mobile reminders, patients can be prompted to take their medication, schedule their followup appointments, or fill their prescription to encourage compliance and better overall health.

Methods

A search of PubMed, LibKey, and EBSCO was conducted. Articles reviewed included meta-analysis, randomized controlled trials, and systematic reviews in the use of mobile reminders on patient compliance, specifically in medication adherence. Then, we reviewed the article methods and outcomes across various health issues addressed. The articles were then reviewed for criteria such as population size, length of …

Teach-Back Method To Reduce Chf Readmissions: A Scoping Review, Briyanna Evans Bsn, Rn, Bre'yocha Dewalt Bsn, Rn, Ccrn, Jessica Mabry Bsn, Rn, Kailee Garrett Bsn, Rn, Crystal Stephens Bsn, Rn, Margaret Harvey Phd, Aprn, Acnp-Bc, Chfn

Doctor of Nursing Practice Projects

Purpose/Background

The purpose of this scoping review is to evaluate the effectiveness of the teach-back method on education as it relates to congestive heart failure readmission rates. Congestive heart failure (CHF) is the most common cause of hospitalizations among those 65 years and older in the United States. CHF readmission rates in Tennessee are higher than the already elevated national average. The current literature suggests a need to reduce 30-day readmissions, improve patient outcomes, and enhance self-efficacy in patients with CHF. The research proposes a correlation between high readmission rates and poor knowledge retention of patients with CHF, but small …

The Effectiveness Of Increasing Frequency Of Central-Line Dressing Changes And Monitoring On Clabsi Rates: A Scoping Review, Jacob Schmidt, Bsn, Rn, Ccrn, Georgia Brown, Bsn, Rn, Laura Dickey, Agpcnp-C, Lauren Faulkner, Bsn, Rn, Margaret Harvey, Phd, Aprn, Acnp-Bc, Chfn

Doctor of Nursing Practice Projects

Abstract

Purpose/Background

Central lines provide many benefits to critically ill patients; however, there are additional risks with them, including central line-associated bloodstream infections (CLABSIs). CLABSIs place patients at increased risk for morbidity and mortality, longer length of stay, and higher medical costs. Studies evaluating various methods of reducing CLABSIs have been performed. This scoping review was completed to determine the effectiveness of frequent central-line dressing changes and increased monitoring on the incidence of central-line associated blood stream infections in adults with central-lines.

Methods

An extensive database search through the University of Tennessee Health Science Center (UTHSC) Online Library was performed …

Efficacy Of Distraction Therapy In Reducing Needlestick Pain In Pediatrics: A Scoping Review, Ashlan Ritchie Bsn, Rn, Anne Evans Bsn, Rn, Charlotte Isabel Bsn, Rn, Michelle Rickard Dnp, Cpnp-Ac, Chppn, Bmtcn

Doctor of Nursing Practice Projects

Purpose/Background

Pediatric pain management is often overlooked due to time constraints and lack of resources or education on interventions used, such as distraction or pharmacological therapy. Lack of pain management leads to patient and caregiver distress, as well as an increased number of attempts to perform the procedure. This scoping review evaluates the efficacy of distraction therapy compared to nonopioid pharmacological interventions for acute needlestick pain in children ages 6 to 12 years; patient and caregiver levels of distress were also evaluated in most studies.

Methods

The UTHSC (University of Tennessee Health Science Center) Library database was searched for full-text …

The Effects Of Exosomal Derived Tsg-6 On Microglia Activation, Jonathan A. Martinez, Rajashekhar Gangaraju Md

Longitudinal Scholar's Project

Following a traumatic brain injury, microglia become overactive for long periods and display pathologic behavior. We have shown that concentrated conditioned media from adipose tissue-derived mesenchymal stem cells (MSC-CCM) can suppress microglial activation. In this pilot study, we evaluated the efficacy of exosomes containing TNF-stimulated gene 6 (TSG6) derived from MSC-CCM on decreasing microglial activation in vitro via phagocytic activity and pro-inflammatory microglial gene expression.