Medicine and Health Sciences Commons^™

Treatment Efficiency And Quality Improvement Via Double Imaging Modality (Dim) Versus Single Imaging Modality (Sim) Image-Guided Radiotherapy For Prostate Cancer, Milad Mirzaei, Suki Gill, Mahsheed Sabet, Martin A. Ebert, Pejman Rowshanfarzad, Jake Kendrick, Angela Jacques, Clare Herbert, Jeremy Croker, Sean Bydder, Joshua Dass, Edward Bailey, Rohen White, Catherine Moffat, Colin Tang, Adriano Polpo, Nicholas Bucknell

Research outputs 2022 to 2026

Purpose: Daily image-guided radiotherapy (IGRT) for prostate cancer reduces treatment-related toxicity. However, positional and anatomical variations can result in patient re-setup, increased treatment time, and additional imaging dose. A simple technique of two distinct imaging modalities was investigated: initially, an anteroposterior kilovoltage (AP-kV) planar image was acquired, followed by cone beam computed tomography (CBCT). To determine whether this dual imaging modality (DIM) can reduce repeat CBCTs with an AP-kV screening image compared to CBCT alone, i.e. a single imaging modality (SIM). Methods: Patients were enrolled sequentially before and after the new departmental protocol for IGRT. Initially, all patients had a …

Interdisciplinary Research Among Tourism, Public Health, And Global Health: A Promising Stream Focusing On Populations With Suboptimal Health Status, Jun Wen, Fangli Hu, Danni Zheng, Haifeng Hou, Wei Wang

Research outputs 2022 to 2026

Research suggests that approximately 75% of the world's population suffers from suboptimal health status, meaning these individuals often feel unwell but have no clearly diagnosable conditions. Suboptimal health status, originating from traditional Chinese medicine, signifies an intermediate state between health and disease. Tourism has been deemed beneficial for personal health and general well-being. More recently, it has been proposed as a non-pharmacological intervention for individuals with dementia, given its potential contributions to health promotion and disease prevention/treatment. Yet, the tourism literature has paid scarce attention to populations with suboptimal health status, even as an aging society becomes inevitable. This paper …

Management Of Aggressive And Disruptive Behavior In The Emergency Department Using De-Escalation Techniques And Simulation: A Quality Improvement Project To Improve The Knowledge And Confidence Of Emergency Department Nurses And Clinical Staff, Ernestine Darby-Littlejohn

Electronic Theses and Dissertations

Abstract

Approximately 40% of all healthcare workers have reported episodes of violence by patients over the last 2 years. This Veteran’s Health Agency reported 824 disruptive events reported in the last 5 years, of which 56 occurred in the emergency department. Research shows that interventions are not always timely, resulting in the clinical staff requesting the Veteran’s Health Agency Police to intervene when a veteran’s level of stress is escalating. The gap in practice is shown to be related to a lack of knowledge in the clinical staff in managing high stress levels exhibited by some veterans, limited knowledge of …

Dentistry And The Law: How To Handle Visits Or Contacts By An Ice Agent, Daniel Schulte J.D.

The Journal of the Michigan Dental Association

The article addresses how dental practices should handle visits from Immigration and Customs Enforcement (ICE) agents following the January 2025 revocation of the "sensitive locations" policy. While ICE agents can enter public areas without warrants, they require judicial warrants, administrative warrants, or subpoenas to access private areas. Practices should verify agents' identities, follow established law enforcement policies, and protect patient information under HIPAA guidelines. The article recommends developing comprehensive policies and training staff to handle law enforcement visits appropriately.

Sickle Cell Disease: Stroke, Children's Mercy Kansas City

Clinical Pathways

No abstract provided.

Covid-19, Children's Mercy Kansas City

Clinical Pathways

No abstract provided.

Therapeutic Effectiveness Of Lumbar Medial Branch Block And Lumbar Intra-Articular Facet Injections: A Propensity-Matched Cohort Study., Ian S Ackers, Jacquelyn A Witzke, Arvin Saremi, Tyler K Farley, Nicolas R Thompson, Yadi Li, Brian D Foresi, Kush K Goyal

Ambulatory and Primary Care Articles

BACKGROUND: Chronic low back pain is a prevalent condition that is treated commonly with radiofrequency neurotomy (RFN) after diagnostic targeting with medial branch blocks (MBB) or intra-articular (IA) injection.

PURPOSE: We evaluated the long-term therapeutic value of MBB and IA injection of steroids for relief from chronic low back pain beyond the current diagnostic utility.

METHODS AND OUTCOME MEASURES: This was a retrospective propensity-matched cohort study from a single physician injection census at a tertiary care hospital. A total of 460 patients receiving MBB (n=383) or IA injection (n=77) in 2013-2020 were included. Primary outcome measures were patient-reported outcomes (PROs) …

Clinical Use Of Gafchromic Ebt4 Film For In Vivo Dosimetry For Total Body Irradiation, Emily Draeger, Fada Guan, Min-Young Lee, Dae Yup Han, William Donahue, Zhe Jay Chen

Faculty, Staff and Student Publications

Purpose: In vivo dosimetry is a common requirement to validate dose accuracy/uniformity in total body irradiation (TBI). Several detectors can be used for in vivo dosimetry, including thermoluminescent dosimeters (TLDs), diodes, ion chambers, optically stimulated luminescent dosimeters (OSLDs), and film. TLDs are well established for use in vivo but required expertise and clinical system availability may make them impractical for multifractionated TBI. OSLDs offer quick readout, but recalls have restricted their use. The purpose of this work was to validate the newly available Gafchromic EBT4 film for TBI in vivo dosimetry.

Methods: Film calibration curves were created under standard conditions …

Prognostic, Biological, And Structural Implications Of Flt3-Jmd Point Mutations In Acute Myeloid Leukemia: An Analysis Of Alliance Studies, Nadeen Anabtawi, Geoffrey L Uy, Et Al.

2020-Current year OA Pubs

The FLT3 gene frequently undergoes mutations in acute myeloid leukemia (AML), with internal tandem duplications (ITD) and tyrosine kinase domain (TKD) point mutations (PMs) being most common. Recently, PMs and deletions in the FLT3 juxtamembrane domain (JMD) have been identified, but their biological and clinical significance remains poorly understood. We analyzed 1660 patients with de novo AML and found FLT3-JMD mutations, mostly PMs, in 2% of the patients. Patients with FLT3-JMD mutations had a higher relapse rate and shorter disease-free survival than those with FLT3-TKD, whereas their relapse rate, disease-free and overall survival were not significantly different from those of …

Emergence Of Infective Endocarditis Due To Serratia Spp.: Results Of A Multicenter Cohort, Leah Madeline Mccrary, Douglas Slain, Sunish Shah, Bobbi Jo Stoner, Ashley H Marx, Asher J Schranz

2020-Current year OA Pubs

BACKGROUND: Infective endocarditis due to

METHODS: This was a retrospective analysis of adults treated for S-IE at 4 academic health systems in different US states from 2015 to 2021. Multivariable logistic regression analyzed the association of inpatient mortality with procedural management and combination antibiotic treatment.

RESULTS: A total of 159 cases of S-IE were identified with a qualitative overall increase across the period, and a peak in 2019, although trends varied by site. Seventy-five were due to IDU, 57% involved a single left-sided valve, and inpatient mortality was 21%. In adjusted analyses, including 117 cases from 3 sites, lower inpatient …

Rates Of Hospitalization And Death Due To Covid-19 In Us Veterans With Sars-Cov-2 Infection In The Xbb-, Jn.1-, And Kp-Predominant Eras, Taeyoung Choi, Yan Xie, Ziyad Al-Aly

2020-Current year OA Pubs

Between September 2023 and October 2024, severe acute respiratory syndrome coronavirus 2 evolved through 3 variant-predominant eras: XBB, JN.1, and KP. Among 130 263 Department of Veterans Affairs patients with coronavirus disease 2019, hospitalization odds declined for JN.1 (0.81; 95% CI, 0.74-0.89) and KP (0.80; 95% CI, 0.72-0.88) compared with XBB, with consistently low in-hospital death rates across all eras.

Evaluation Of The Safety Of Dexmedetomidine Dosing Utilizing Adjusted Body Weight In Obese Critically Ill Patients: A Retrospective Study., Molly E Robertson, Aimee E Willett, Joshua J Mathias, Britney N Sleeckx, John O Elliott

OhioHealth Research Institute Articles

The purpose of this study was to evaluate the safety of dexmedetomidine dosing, utilizing adjusted body weight (AdjBW) in obese, critically ill patients. This was a retrospective cohort study of patients who received dexmedetomidine from March 2020 to April 2021. Participants received dexmedetomidine as the sole agent for sedation for ≥8 hours, were ≥18 years old, had a level of care listed as "critical care," and had an actual body weight (ABW) of at least 120% of their ideal body weight (IBW). A total of 225 participants were included. Results demonstrated that the incidence of hypotension and bradycardia was lower …

Decreased Voluntary Alcohol Intake And Ventral Striatal Epigenetic And Transcriptional Remodeling In Male Acss2 Ko Mice, Gabor Egervari, Greg Donahue, Natalia A Quijano Cardé, Desi C Alexander, Connor Hogan, Jessica K Shaw, Erica M Periandri, Vanessa Fleites, Mariella De Biasi, Shelley L Berger

2020-Current year OA Pubs

Metabolic-epigenetic interactions are emerging as key pathways in regulating alcohol-related transcriptional changes in the brain. Recently, we have shown that this is mediated by the metabolic enzyme Acetyl-CoA synthetase 2 (Acss2), which is nuclear and chromatin-bound in neurons. Mice lacking ACSS2 fail to deposit alcohol-derived acetate onto histones in the brain and show no conditioned place preference for ethanol reward. Here, we further explored the role of this pathway during voluntary alcohol intake. We found that Acss2 KO mice consume significantly less alcohol in a model of binge drinking, an effect primarily driven by males. Genome-wide transcriptional profiling of 7 …

Impact Of Mass Drug Administration With Ivermectin, Diethylcarbamazine, And Albendazole For Lymphatic Filariasis On Hookworm And Strongyloides Stercoralis Infections In Papua New Guinea, Jannet A. Tobon Ramos, Tobias Maure, Lenore Carias, Daphne Lew, Charles Goss, Anna Samuel, Livingstone Tavul, Peter U. Fischer, Gary J. Weil, Moses Laman, Leanne J. Robinson, William Pomat, Christopher L. King

2020-Current year OA Pubs

BACKGROUND: Persons with lymphatic filariasis (LF) are often co-infected with soil-transmitted helminths. A single co-administered dose of ivermectin/diethylcarbamazine/albendazole (IDA) is recommended by WHO for mass drug administration (MDA) for LF instead of diethylcarbamazine/albendazole (DA) in Papua New Guinea (PNG). We compared the effectiveness of a single round of MDA with IDA or DA on hookworm and strongyloidiasis in PNG.

METHODOLOGY/PRINCIPAL FINDINGS: This study was conducted as part of a cluster randomized trial of MDA with IDA versus DA for LF in individuals willing to provide stool and blood samples at baseline and 12 months after MDA. Participants from 23 villages …

A Sample Size Analysis Of A Mathematical Model Of Longitudinal Tumor Volume And Progression-Free Survival For Bayesian Individual Dynamic Predictions In Recurrent High-Grade Glioma, Daniel J Glazar, Solmaz Sahebjam, Hsiang-Husan M Yu, Dung-Tsa Chen, Menal Bhandari, Heiko Enderling

Faculty, Staff and Student Publications

Patients with recurrent high-grade glioma (rHGG) have a poor prognosis with median progression-free survival (PFS) ofheterogenous, suggesting a clinical need for prognostic models. Bayesian data analysis can exploit individual patient follow-up imaging studies to adaptively predict the risk of progression. We propose a novel sample size analysis for Bayesian individual dynamic predictions and demonstrate proof of principle. We coupled a nonlinear mixed effects tumor growth inhibition model with a survival model. Longitudinal tumor volumes and time-to-progression were simulated for 2000 in silico rHGG patients. Bayesian individual dynamic predictions of PFS curves were evaluated using area under the receiver operating characteristic …

Spatial Histomorphometry Reveals That Local Peripheral Nerves Modulate But Are Not Required For Skeletal Adaptation To Applied Load In Mice, Alec T Beeve, Mohamed G Hassan, Anna Li, Nicole Migotsky, Matthew J Silva, Erica L Scheller

2020-Current year OA Pubs

Mechanical loading is required for bone health and results in skeletal adaptation to optimize strength. Local nerve axons, particularly within the periosteum, may respond to load-induced biomechanical and biochemical cues. However, their role in the bone anabolic response remains controversial. We hypothesized that spatial alignment of periosteal nerves with sites of load-induced bone formation would clarify this relationship. To achieve this, we developed RadialQuant, a custom tool for spatial histomorphometry. Tibiae of control and neurectomized (sciatic/femoral nerve cut) pan-neuronal Baf53b-tdTomato reporter mice were loaded for 5 days. Bone formation and periosteal nerve axon density were then quantified simultaneously in non-decalcified …

Outpatient Physical Therapy Attendance By Older Adults After Emergency Department Discharge Was A Predictor For Lower 30-Day Revisits—But Demographic Factors Affected Attendance, Suzanne Ryer, Michelle Simpson, Maharaj Singh

College of Nursing Faculty Research and Publications

Objective

Given the high risk of functional loss and revisits among older adults presenting to the emergency department (ED), there is a need to understand how post-ED discharge outpatient physical therapy affects outcomes. This study sought to examine patient demographics and their association with outpatient physical therapy utilization after ED discharge and physical therapy attendance with 30-day ED revisits among older adults discharged to home.

Methods

In this retrospective cohort study, we analyzed data from 1395 older adults (65 years old and older) who had a referral to outpatient physical therapy upon discharge from 15 EDs between January 2021 and …

Optimal Surveillance For Detecting Sarcoma Lung Metastasis – A Systematic Review, Neha Malik, Kate Krause, Emily Z Keung, Heather G Lyu, Heather Lillemoe, Christopher Scally, Keila Torres, Kelly Hunt, Mary Austin, Christina L Roland

Faculty, Staff and Student Publications

Introduction: Accurate diagnosis of lung metastasis for patients with soft tissue sarcoma (STS) can impact overall survival, but there is considerable variability in imaging utilized to detect metastasis. Chest x-ray (CXR) or computer tomography (CT) scan of the chest are the most common studies in current practice.

Methods: A systematic literature search was performed. Databases were searched from inception to January 3, 2024. Articles were reviewed to determine if CXR or CT chest was associated with improved overall or recurrence-free survival in patients with STS. Articles were also reviewed for data on cost-effectiveness of CXR versus CT chest. The quality …

Ensartinib For Advanced Or Metastatic Non-Small-Cell Lung Cancer With Met Exon 14 Skipping Mutations (Embrace): A Multi-Center, Single-Arm, Phase 2 Trial, Yang Xia, Panwen Tian, Mo Zhou, Jun Zhao, Yang Jin, Zhiyuan Guo, Xiuzhen Li, Weina Lu, Da Miao, Yuefei Lu, Wanting Xu, Yongchang Zhang, Xiuning Le, Wen Li

Faculty, Staff and Student Publications

Background: MET exon14 skipping mutations (METex14) is an established actionable driver oncogene of non-small-cell lung cancer (NSCLC). While ensartinib is a known second-generation tyrosine kinase inhibitor with primary activity against ALK translocation, it is also classified as a type Ia MET inhibitor. We have previously shown anti-tumor activity against METex14 positive NSCLC both in vivo and in vitro. The EMBRACE trial aims to evaluate the clinical efficacy and safety of ensartinib for treatment of METex14 positive NSCLC.

Methods: This is a multicenter single arm phase II investigator-initiated study that enrolled METex14 positive lung cancer …

Safety And Efficacy Of Dtx401, An Aav8-Mediated Liver-Directed Gene Therapy, In Adults With Glycogen Storage Disease Type I A (Gsdia), David A Weinstein, Terry G Derks, David F Rodriguez-Buritica, Ayesha Ahmad, María-Luz Couce, John J Mitchell, Rebecca Riba-Wolman, Malaya Mount, Julieta Bonvin Sallago, Katalin M Ross, Melanie M Van Der Klauw, Foekje De Boer, Caroline Van Der Schaaf, Heather Saavedra, Miguel Martínez-Olmos, Elvis Atanga, Asad Hosseini, Deepali Mitragotri, Eric Crombez

Faculty, Staff and Student Publications

Glycogen storage disease type Ia (GSDIa) is a rare, life‐threatening, inherited carbohydrate metabolism disorder caused by glucose‐6‐phosphatase (G6Pase) deficiency, which is essential for glycogenolysis and gluconeogenesis. GSDIa management includes a strict medically prescribed diet that typically includes daily uncooked cornstarch doses, including overnight, to maintain euglycemia. DTX401 is an investigational adeno‐associated virus serotype 8 vector expressing the human G6PC1 gene that encodes G6Pase. This open‐label, phase 1/2, dose‐escalation, 52‐week gene therapy trial evaluated the safety and efficacy of a single DTX401 infusion in 12 adults with GSDIa (ClinicalTrials.gov Identifier: NCT03517085). Three participants in Cohort 1 received DTX401 2.0 × …

Molecular Testing For The World Health Organization Classification Of Central Nervous System Tumors: A Review, Craig Horbinski, David A Solomon, Rimas V Lukas, Roger J Packer, Priscilla Brastianos, Patrick Y Wen, Matija Snuderl, Mitchel S Berger, Susan Chang, Maryam Fouladi, Joanna J Phillips, Burt Nabors, Daniel J Brat, Jason T Huse, Kenneth Aldape, Jann N Sarkaria, Matthias Holdhoff, Terry C Burns, Katherine B Peters, Ingo K Mellinghoff, David Arons, Evanthia Galanis

Faculty, Staff and Student Publications

Importance: Molecular techniques, including next-generation sequencing, genomic copy number profiling, fusion transcript detection, and genomic DNA methylation arrays, are now indispensable tools for the workup of central nervous system (CNS) tumors. Yet there remains a great deal of heterogeneity in using such biomarker testing across institutions and hospital systems. This is in large part because there is a persistent reluctance among third-party payers to cover molecular testing. The objective of this Review is to describe why comprehensive molecular biomarker testing is now required for the accurate diagnosis and grading and prognostication of CNS tumors and, in so doing, to justify …

Patient-Reported Social Risk Factor Screening Among Rheumatology Outpatients, Alissa Chandler, Mohammed Hamid, Ziqiao Jiao, Kelsey Hulcher, Isha Sharma, Patrice Odom, Andrew Robinson, Sara Kellahan, Maura Kepper, Colleen Dostal, Senada Fenelon, Seth Eisen, Daphne Lew, Alfred H J Kim

2020-Current year OA Pubs

OBJECTIVE: The purpose of this study was to pilot test a patient-reported social risk factor (SRF) screening tool among rheumatology outpatients and to examine the distribution of SRFs in this population.

METHODS: A SRF screening tool was completed electronically by patients. Patients were screened for four core SRF domains (financial strain, housing instability, food insecurity, and transportation needs) and four supplemental SRF domains (physical inactivity, social isolation, stress, and depression). Data from the electronic health record were extracted for patients with at least one domain screened who were seen by participating rheumatology providers between January 1 and October 31, 2023. …

Integrated Mental Health Care In Specialty Clinics For Children With A Diagnosis Of Asthma Or Diabetes: A Mixed Methods Study, Joan P. Totka, Maria Peña, Joshua A. Steinberg, Peter M. Wolfgram

College of Nursing Faculty Research and Publications

Introduction

Using patient-reported outcome measures (PROM) in a shared-space mental health-integrated specialty clinic, we explored the feasibility, acceptance, and experience of youth with asthma and diabetes, their families, and the healthcare team.

Method

Using mixed methods, we examined feasibility, acceptability, and experience of PROM inclusion in caring for youth with asthma (n = 7) and diabetes (n = 11), their families (n = 18), and healthcare providers (n= 13). Completion and receipt of PROM (feasibility), postvisit surveys (acceptance), and structured interviews (experience) between June 2019 and February 2020.

Results

Targeted PROM met feasibility goals (80%) …

To Address The Nursing Faculty Shortage, Start With The Salary Gap, Jacqueline Christianson, Christine A. Schindler, Lisa M. Grabert

College of Nursing Faculty Research and Publications

Nurses must advocate with policymakers for meaningful change.

There is a national shortage of nursing faculty to educate the future nurse workforce. The biggest barrier to recruiting and retaining nursing faculty is the salary gap between the faculty and clinical nursing roles. Many full-time nursing faculty earn a lower salary than the new graduate nurses they educate. According to our recent research (American Nurse, July 2024), NPs who have a comparable education level to nursing faculty take an average $43,000 pay cut if they leave clinical practice to teach full-time. Even the salaries of PhD-prepared faculty often lag …

Rationale And Design Of The Defiance Study: A Randomized Controlled Trial Of Mechanical Thrombectomy Versus Anticoagulation Alone For Iliofemoral Deep Vein Thrombosis., Steven D Abramowitz, Xhorlina Marko, Donna D'Souza, Sonya Noor, Keith Pereira, Mitchell J Silver, Stuart P Rosenberg, Craig D Markovitz, Thomas Tu, Ido Weinberg, Stephen Black

Heart and Vascular Articles

BACKGROUND: Deep vein thrombosis (DVT) is a common medical condition that is associated with clinically significant sequelae, including postthrombotic syndrome (PTS). Anticoagulation alone remains the guideline-recommended treatment for many patients with iliofemoral DVT. Recent technological advances have led to an increase in the use of mechanical thrombectomy for DVT, but mechanical thrombectomy-based procedures have not yet been compared with standard-of-care anticoagulation therapy in randomized studies.

METHODS: The DEFIANCE study (ClinicalTrials.gov: NCT05701917) is an international and actively enrolling randomized controlled trial (RCT) in lower extremity DVT assessing an interventional strategy that includes mechanical thrombectomy with the ClotTriever System (Inari Medical, Irvine, …

New-Onset Atrioventricular Nodal Reentrant Tachycardia After Transaortic Valve Replacement: Is There A Causal Link?, Nagesh Chopra, Auroa Badin, Ankur Shah, Sreedhar Billakanty, Eugene Fu, Anish Amin

Heart and Vascular Articles

No abstract provided.

Development And Characterization Of Orthotopic Patient-Derived Xenograft Models Of Peritoneal Metastatic Mucinous Appendiceal Adenocarcinoma, Ichiaki Ito, Vinay K Pattalachinti, Abdelrahman Mg Yousef, Saikat Chowdhury, Mohammad M Fanaeian, Emaan Haque, Betul Beyza Gunes, Mahmoud Yousef, Emma R Salle, Mohammad A Zeineddine, Shuangxi Ji, Ruonan Li, Wenyi Wang, Beth A Helmink, Melissa W Taggart, Michael G White, Keith F Fournier, Natalie W Fowlkes, John Paul Shen

Faculty, Staff and Student Publications

Background: Appendiceal adenocarcinomas (AAs) are a rare and heterogeneous group of tumors for which few preclinical models exist. The lack of preclinical models of AA has hindered drug development and is a major factor in why AA remains without a single FDA-approved systemic treatment.

Materials and methods: Tumors from 16 patients with appendiceal neoplasms (15 AA and one HAMN) were implanted into flank and peritoneal cavity of immunodeficient mice leading to the successful establishment of 3 AAPDX models. Histological, immunohistochemical, genetic, and transcriptomic comparison of patient and PDX tumors were performed.

Results: Higher tumor grade, peritoneal implantation, and RAS/RAF mutation …

Inhibition Of Soluble Epoxide Hydrolase Reduces Inflammation And Myocardial Injury In Arrhythmogenic Cardiomyopathy, Dipak Panigrahy, Vinay Penna, Kory Lavine, Et Al.

2020-Current year OA Pubs

We analyzed the role of pro- and anti-inflammatory eicosanoids in the pathogenesis of arrhythmogenic cardiomyopathy (ACM). Lipidomics revealed reduced levels of anti-inflammatory oxylipins in plasma and increased levels of pro-inflammatory eicosanoids in hearts of Dsg2

Parameterizing Toxic Stress In Early Childhood: Maternal Depression, Maltreatment, And Hpa-Axis Variation In A Pilot Intervention Study, Rachael E Wagner, Melissa Jonson-Reid, Brett Drake, Patricia L Kohl, Laura Pons, Yi Zhang, Robert T Fitzgerald, Mark L Laudenslager, John N Constantino

2020-Current year OA Pubs

Adverse experiences superseding a child's capacity to sustain regulation of emotion and adaptive function are theorized to constitute "toxic stressors" when they induce a deleterious biological response within an individual. We ascertained presumptive parameters of toxic stress among 164 low-income infants and toddlers (ages 4-48 months) from 132 families enrolled in Early Head Start (EHS). We randomized a subset of these families into a pilot intervention arm of parenting education (the Incredible Years, TIY), which supplemented the EHS curriculum. Official report child abuse and neglect (CAN) and child behavior were serially ascertained over the course of the study. We observed …

Robust Automated Method Of Spatial Resolution Measurement In Radiotherapy Ct Simulation Images, Pavel Govyadinov, Rick R Layman, Tucker Netherton, Raymond Mumme, Aaron K Jones, Laurence E Court, Moiz Ahmad

Faculty, Staff and Student Publications

Background: Variation in imaging protocol, patient positioning, and the presence of artifacts can vary image quality in CT images used for radiotherapy planning. Automated methods for spatial resolution (SR) estimation exist but require further investigation and validation for wider adoption.

Purpose: To validated previously existing algorithm for SR estimation and introduce improvements that make it robust to patient positioning, CT protocol, site, and artifacts.

Method: A reference algorithm based on the previous gold standard was recreated and modified to improve robustness. The algorithms were tested on three different datasets: (1) a cylindrical ACR CT QC phantom scanned using a Siemens …