Radiology Commons^™

Deep Learning Based Approaches For Low Cost Defense Detection, Adele J. Noel-Rickert

All NMU Master's Theses

Pulmonary fibrosis is a progressive interstitial lung disease characterized by the accumulation of fibrotic tissue within the lungs, leading to impaired respiratory function and reduced quality of life. Early detection is important for disease management; however, accurate diagnosis often relies on high-resolution computed tomography (CT), which may not be accessible in all clinical settings. Chest radiography provides a lower-cost and widely available imaging modality, but interpretation of chest X-rays for fibrotic disease can be challenging due to subtle radiographic patterns and overlapping anatomical structures. This thesis investigates the use of multimodal deep learning techniques to assist in pul- monary fibrosis …

Artificial Intelligence Decision Support In Automated Breast Ultrasound: Improving Diagnostic Accuracy And Reducing Unnecessary Biopsies, Chayaporn Hasdiseve, Jenjeera Prueksadee

Chulalongkorn Medical Journal

Background: Emerging roles of artificial intelligence support in breast imaging leads to improved radiologists’ performance

Objective: To assess the diagnostic performance of the artificial intelligence decision support in the evaluation of breast masses using automated breast ultrasound (ABUS).

Methods: 182 patients (415 breast masses) who received ABUS were included. Two readers, including the experienced breast radiologist (reader1) and the breast imaging fellow (reader2), separately reviewed the ABUS images and the artificial intelligence decision support according to the ACR BI-RADS 5^th edition.

Results: All of the 415 masses; 395 masses (95.2%) were benign and 20 masses …

Superior Mediastinal Cut-Off Measurements In Chest Radiographs For Screening Of Silent Thoracic Aortic Diseases, Kantheera Leesmidt, Boonyarit Sintuvikaiwong, Apichaya Sripariwuth

Chulalongkorn Medical Journal

Objective: To determine cut-off values for superior mediastinal width and the mediastinal width-to-thoracic cage ratio from chest radiographs for the early detection of unrecognized thoracic aortic diseases. Additionally, this study aims to enhance diagnostic strategies for identifying aortic abnormalities.

Materials and Methods: This retrospective analysis included 152 subjects who underwent both computed tomography angiography (CTA) of the thoracic aorta and chest radiograph between April 2007 and January 2021. Superior mediastinal width was measured at 3 levels on chest radiographs. Thoracic CTA findings were categorized into normal and abnormal groups, the latter comprising aortic dissection, intramural hematoma, penetrating atherosclerotic …

Letter To The Editor: Evidence For A Two-Step Species-Level Pulmonary Nocardiosis Diagnostic Approach, John Halphen, Mohadese Ahmadzade, Babith Mankidy, Ashkan Berenji, Mohammad Ghasemi-Rad

Faculty, Staff and Students Publications

Pulmonary nocardiosis, a rare and diagnostically challenging infection, usually presents with heterogeneous radiographic findings, compounded by the low sensitivity of traditional confirmatory cultures. In their most recent work, Wang et al analyzed 102 patients with pulmonary nocardiosis to address these concerns, investigating species-characteristic imaging patterns, pathological associations, and the role of metagenomic next-generation sequencing (mNGS) in the diagnostic approach. High-resolution computed tomography (CT) in adult patients with pulmonary infections caused by Nocardia wallacei was demonstrated to have a sensitive (85.71%) and specific (83.34%) presentation of bronchopneumonia in relation to the five Nocardia species in the sample with CT data. The …

Gut Microbiota Modulation Via Repeated Donor Fecal Transplantation Improves Motor And Gastrointestinal Symptoms In Drug-Naïve Parkinson’S Disease: A Randomized Phase 2 Trial, Rui Zhang, Renyi Feng, Jiuqi Wang, Yongkang Chen, Han Liu, Qingyong Zhu, Haiyan Tian, Chi Qin, Junfang Teng, Beisha Tang, Min Wu, Jinsheng Zeng, Erxi Wu, Xuebing Ding, Xuejing Wang

Faculty, Staff and Students Publications

The gut-brain axis is increasingly recognized as a critical contributor to Parkinson's disease (PD) pathogenesis, yet the therapeutic impact of microbiota modulation remains unclear due to lack of clinical trials in drug-naïve patients. We conducted a randomized, double-blind, placebo-controlled phase 2 trial to evaluate the safety, tolerability, and efficacy of repeated donor fecal microbiota transplantation (dFMT) in de novo PD. FMT was administered for seven days (200 mL on days 1-3; 50 mL on days 4-7) per 4-week cycle. Seventy-two patients were randomized 1:1 to receive dFMT or autologous FMT (aFMT), and 66 completed the trial. At 35 weeks, the …

Simulation-Free Spine Palliative Radiotherapy Enabled By Ai-Adapted Diagnostic Ct, Yiding Han, Alexander Nicola Hanania, Zaid Ali Siddiqui, Vincent Ugarte, Boran Zhou, Abdallah S R Mohamed, Piyush Pathak, Daniel Allen Hamstra, Baozhou Sun

Faculty, Staff and Students Publications

Background: Radiotherapy planning traditionally requires a dedicated simulation CT (sCT), which can introduce delays in initiating treatment. This is particularly impactful in spinal palliative care, where timely treatment is often important for symptom control and prevention of neurological deterioration. Although diagnostic CT (dCT) is frequently available earlier in the workflow, it can lead to geometric and dosimetric inaccuracies when used directly for treatment planning due to discrepancies in patient positioning, vertebral alignment, and table curvature.

Purpose: To develop and evaluate an AI-based method that transforms dCT into a simulation-equivalent planning CT (AI-pCT), enabling a clinically feasible simulation-free workflow for spinal …

Alpha And Beta Emitters In Translational Nuclear Medicine: Clinical Advances, Challenges, And Future Direction, Hanieh Karimi, Thomas H. Shaffer, Erik Stauff, Vinay V. R. Kandula, Heidi H. Kecskemethy, Lauren W. Averill, Xuyi Yue

Department of Radiology Faculty Papers

Radiopharmaceutical therapy (RPT) has emerged as a transformative modality in oncology, particularly for patients with metastatic or inoperable tumors. By leveraging molecularly targeted carriers conjugated to cytotoxic radionuclides, RPT enables precise delivery of ionizing radiation to tumor sites while minimizing off-target effects. Central to this approach are alpha (α) and beta (β) particle-emitting radionuclides. This review aims to provide a comprehensive overview of all clinically relevant alpha and beta emitters and incorporates the most recent advances from 2017-2025, offering a comprehensive and up-to-date perspective. Alpha and beta emitters hold significant promises for the future, especially in nuclear medicine, energy, and …

Multiplanar First-Ray Deformity And Its Impact On Tibial Sesamoid Assessment: A Radiographic Analysis​, Yasim Zafar, Madelaine Adkins, Jessica Sima

School of Podiatric Medicine - Student Research

This study evaluated whether discrepancies in tibial sesamoid position (TSP) between anteroposterior (AP) and sesamoid axial radiographs are associated with first-ray deformity parameters: first metatarsal rotation angle (MRA), sesamoid rotation angle (SRA), intermetatarsal angle (IMA), and hallux valgus angle (HVA). We hypothesized that increased frontal-plane external rotation of the first metatarsal would be the primary contributor to AP–axial TSP mismatch.

This secondary analysis used deidentified radiographs from Shibuya et al. (J Foot Ankle Surg. 2019). Adults aged 18–80 with measurable TSP on both AP and axial views were included; patients with prior foot trauma or osseous surgery were excluded. Only …

Musculoskeletal Infection Reporting And Data System (Mski-Rads): Reviewed And Explained, Angela He, Flavio Duarte Silva, Mina Guirguis, Erin F. Alaia, William B Morrison, Avneesh Chhabra

Department of Radiology Faculty Papers

A standardized guideline and scoring system are recommended for the imaging evaluation of musculoskeletal infections on MR imaging. The Musculoskeletal Infection Reporting and Data System (MSKI-RADS) is a recently developed and validated classification system using MR imaging that can be used to classify the severity and extent of musculoskeletal infections, improve radiology-pathology concordance, and outline the corresponding management recommendations. This review article explains MSKI-RADS and discusses the different elements of this system in detail with a review of pertinent literature so that the readers can apply it in their practices. The work outlines the technical considerations for optimal MR imaging …

Imaging In Acute Neurovascular Emergencies: Optimizing Outcomes In Large Vessel Occlusion Stroke, Chandu Goli, Rohit Patel, Elliott Beard, Anna Liles, Saeed Saleh, Aleeza Namit, Alissa Ongaco, Kevin Steed Ph.D.

Annual Research Symposium

Purpose:

Large vessel occlusion (LVO) stroke is associated with high rates of morbidity and mortality, and patient outcomes are strongly influenced by rapid identification and timely reperfusion. Advances in acute neurovascular imaging have transformed stroke care by enabling precise patient selection, extending treatment windows, and accelerating clinical workflows. The purpose of this project is to evaluate how modern neurovascular imaging strategies influence treatment selection, workflow efficiency, and clinical outcomes in patients with acute LVO stroke.

Methods:

A narrative review of peer-reviewed literature published within the past decade was conducted. The review focused on CT-based imaging (non-contrast CT, CT angiography, CT …

Diagnostic Accuracy Of Cerebral Amyloid Angiopathy Criteria In The First Pathologically Confirmed Thai Cohort: A Pilot Study, Thanapoom Taweephol, Thachamai Smitasiri, Thanakit Pongpitakmetha, Sekh Thanprasertsuk, Anand Viswanathan

Chulalongkorn Medical Journal

Background: The gold standard for diagnosing cerebral amyloid angiopathy (CAA), full brain post-mortem examination, is rarely performed. Current diagnostic criteria, primarily based on clinico-radiological features, were developed from Western populations and may have limited applicability to Asian populations.

Objective: We aimed to evaluate the accuracy of current diagnostic criteria and examine the clinico-radiological characteristics of Thai CAA patients.

Methods: Brain histopathological specimens from patients with clinical symptoms of CAA who underwent neurosurgical procedures, including intracerebral hemorrhage (ICH) evacuation, between 2011 and 2021 at King Chulalongkorn Memorial Hospital, Thailand, were reviewed. Patient characteristics and clinical events for each individual were retrospectively …

Designing A Multilingual Instructional Language Tool For Patient Communication In Interventional Radiology, Samuel Almodóvar, Ahlam Houssein, Gregg Khodorov, Md, Mba, Sahib Sohal, Md, Robert Pugliese, Pharmd, David Dwyer, Md

Alpha Omega Alpha Research Symposium Posters

Introduction: Current efforts to provide language-inclusive radiological care fall short, resulting in suboptimal imaging, increased procedural time, and greater radiation exposure. Inadequate language accessibility results in poor communication, suboptimal care, and increased patient dissatisfaction. A digital language tool was developed to provide patient instructions during interventional radiology (IR) procedures, addressing this gap and enhancing patient care.

Methods: Observations were carried out to better understand workflow during IR procedures and identify how to incorporate the tool. We conducted interviews with IR physicians, nurses, and technologists to gather common procedural phrases and patient instructions. Spanish and Mandarin were selected because they are …

A Minimally Invasive Palliative Approach Using Radiofrequency Ablation And Cementoplasty In A Painful Metastatic Acetabular Lesion, Liliya S. Agarkov, Korinne Diss, Garrett C. Schneider

Advances in Clinical Medical Research and Healthcare Delivery

Up to 75% of patients with advanced metastatic disease experience excruciating pain that affects their daily life. We elaborate on a case of a 63-year-old male with Stage IV squamous cell lung carcinoma with advanced osseous metastatic lesions who presented with symptoms of ambulatory dysfunction due to a lesion in the right acetabulum. This case report demonstrates how radiofrequency ablation can offer pain relief through meticulous ablation of a metastatic lesion without the necessity and negative side effects of external beam radiation.

Controlled Antibiotic Release From Emulsion-Loaded Alginate And Fibrin Hydrogels Using Ultrasound, Ziba Ghareh Nazi Fam, Asia Winslow, Mario Fabiilli, Sam Varghese, Brian Oeffinger, Flemming Forsberg, Noreen Hickok, Lauren Delaney

Department of Radiology Faculty Papers

Postoperative infections remain a major complication after spinal fusion surgery, often caused by biofilm-forming bacteria that resist short-term antibiotic prophylaxis. Vancomycin (VAN) is sometimes delivered locally during surgery; however, levels diminish rapidly, leaving patients vulnerable to late-onset infections. We developed a composite hydrogel integrating perfluorohexane-based emulsions within alginate or fibrin matrices to enable both sustained and ultrasound-triggered VAN release. Water-in-oil-in-water emulsions were prepared using fluorosurfactant-stabilized perfluorohexane as the volatile oil phase, then embedded in hydrogels and exposed to ultrasound (2.5 MHz, 5.5 MPa peak negative pressure) to initiate acoustic droplet vaporization for triggered release. Drug release was quantified spectrophotometrically and …

Neuroradiological Features Across Major Psychiatric Disorders And Behavioral Variant Of Alzheimer’S Disease: A Concise Multimodal Synthesis, Sina Dindarian, Joga Chaganti, Nazanin Rafiei, Scott H. Faro

Department of Radiology Faculty Papers

Psychiatric disorders are complex, disabling conditions that continue to rely on subjective diagnostic criteria due to the absence of objective biological markers. Neuroradiology has become a critical discipline for examining the structural, functional, and biochemical underpinnings of these disorders through advanced brain imaging. This review synthesizes findings from five major psychiatric conditions including major depressive disorder, schizophrenia, autism spectrum disorder, obsessive-compulsive disorder, and generalized anxiety disorder, and briefly discusses the behavioral variant of Alzheimer's disease, a variant with neuropsychological overlay, across multiple imaging modalities, including structural magnetic resonance imaging (MRI), diffusion tensor imaging, functional MRI, magnetic resonance spectroscopy, functional near-infrared …

Fill The Void - An Introductory Guide For Learning Medical Imaging, Reid Faith, Peter Gahan, Adam Trusty, Aleksandr Zyskin, Chukwuka Ukekwe, Denise Nchinda, Amanda K. Burbage, Alberto E. Musto

EVMS School of Health Professions Faculty Publications

No standardized, comprehensive approach for radiological image interpretation exists among medical schools in the United States of America. In order to rectify this, we outline a model aimed to help improve how medical imaging can be taught in medical schools. The VOID (Visualization, Orientation/Observation, Identification, Description) guide is a proposed universal, stepwise approach to medical image identification, interpretation, and communication. This structured guideline is aimed at building a foundation for students in early medical education. The VOID was applied to CT (Computed Tomography), MRI (Magnetic Resonance Imaging), and x-ray modalities as integrated sessions for medical students during human anatomy laboratory. …

Plasma Cell Myeloma, Christopher Hogue, Smit Jani, Nicholas Sagul

South Atlantic Division GME Research Days 2026

No abstract provided.

Stronger Isn't Always Better: 1.5 Tesla Vs 3 Tesla Magnetic Resonance Imaging Scanners, Taylor Deiter

Student Research Poster Presentations 2026

Abstract

Magnetic resonance imaging (MRI) is an imaging modality that does not use ionizing radiation. Instead, MRI uses magnetic fields, gradience, coils, and radio frequency to provide anatomic and physiologic information. The purpose of the research study is to examine the strengths and weaknesses of a 1.5 tesla to a 3-tesla magnetic resonance imaging scanner. Cross sectional images are produced to better visualize muscles, organs, and soft tissues for diagnostic purposes. MRI screening and safety is a crucial part of the modality. The most common magnetic strength used for clinical diagnosis are 1.5 and 3 teslas. The higher the strength …

Positive Efast—Not So Fast, Barry J. Knapp, Mitchell Vallone, Megan Duggins, Matt Jones, Jacob Knapp, Lily Kauffman, Alexander Dornstauder

Department of Emergency Medicine Faculty Publications

[Patient presentation] A 68-year-old man presented via emergency medical services (EMS) with right hip pain following a traumatic fall from his bicycle. On arrival at the emergency department, he was alert and oriented. Physical examination revealed only tenderness over the greater trochanter of the left femur, with no significant pain on passive range of motion of the left hip. Plain radiography demonstrated a left acetabular fracture (Fig 1).

Comparative Evaluation Of Conventional Ct And Dual-Energy Ct In The Detection And Characterization Of Intracerebral Stroke, Aidan Rosado, Shakiba Jalili, Hap Tain, Saleha Zafar

Research Methods Poster Session 2026

No abstract provided.