Radiation Medicine Commons^™

Software Tools And Simulation Exercises For Radiation Oncology Cyber-Attack Resiliency, Yevgeniy Vinogradskiy, James Lamb

Department of Radiation Oncology Faculty Papers

This review summarizes the rationale for radiation oncology cyberattack simulation exercises, recent results from multi-institutional resiliency drills, and the landscape of software tools developed to help clinics resume radiotherapy treatments rapidly and safely during a cyberattack or other major clinical software outage. Simulation exercises using record-and-verify (R&V) downtime and File Mode treatment delivery have identified failure modes not apparent in theoretical planning alone, including risks related to treatment documentation, repeated fractions, patient setup, and missed safety checks. Available software tools emphasize insulated backup of DICOM-format planning data and clinical notes, treatment-state dashboards, File Mode treatments, redundant R&V installations, and human-readable …

A Dosimetric Comparison Of Halcyon 6x-Fff And Truebeam 6x In Prone Left Whole Breast Radiation Therapy, Maritza Soto, Kelly Labant, M.S., Cmd, Rt(T), Kristen Vu, M.S., Cmd, Rt(T)

Masters Projects

Purpose:

This retrospective study compared dosimetric differences between prone left whole breast radiation (WBRT) treatment plans originally generated for Halcyon using 6X flattening- filter-free (FFF) beams and replanned for a conventional TrueBeam using 6X beams.

Methods:

Ten prone whole left breast treatment plans were paired and retrospectively analyzed. Clinically treated Halcyon 6X flattening filter free plans were replanned on TrueBeam using flattened 6X beams in Eclipse v16.1. Contours for all plans were generated using artificial intelligence-based autosegmentation, reviewed by a medical dosimetrist and radiation oncologist, and forward planned with a tangent technique in EZFluence to achieve identical planning objectives. Dose …

The Impact Of Scar Wires On Dose Distribution Of Electron Fields, Ahmad Nour

Masters Projects

Purpose: This phantom study looked at whether changing the Hounsfield unit (HU) value for radiopaque scar wires in Eclipse changed the calculated electron dose distribution. Methods and Materials: Radiopaque wires were placed in the same abdominal area on an anthropomorphic phantom. The wires were set up in a circle. The CT images were brought into Eclipse, the wires were contoured, and the planning target volume was made 1 cm inside the circle of wire. For every wire size and electron energy, two matching plans were made: one plan with no density override and one plan with a density override applied …

Dosimetric Comparison Between Geometric Centroid And Minimax Isocenter Placement In Single Isocenter Multitarget Stereotactic Radiosurgery Plans In Hyperarc, Matthew Gloudeman

Masters Projects

Single-isocenter multi-target (SIMT) stereotactic radiosurgery (SRS) utilizing Varian HyperArc streamlines clinical workflows but introduces geometric sensitivity for distant outlier lesions when rotational and setup uncertainties are taken into account. The default isocenter location in the HyperArc workspace is the geometric centroid, which is inherently biased toward clusters of lesions. This study evaluates the dosimetric plan quality of an alternative minimax isocenter strategy, which minimizes the maximum lesion-to-isocenter distance, shortening the rotational lever arm to enhance mechanical robustness. Two fractionated SRS (fSRS) plans were generated for ten patients with 3-5 brain metastases using identical beam configurations: one using HyperArc’s default geometric …

Dosimetric Comparison Of Hybrid 3d Conformal Radiation Therapy And Volumetric Modulated Arc Therapy Versus Vmat-Only Planning For Accelerated Partial Breast Irradiation, Erjona Jusufi

Masters Projects

Abstract

Purpose: To compare dosimetric outcomes between volumetric modulated arc therapy (VMAT)-only and hybrid VMAT plus three-dimensional conformal radiotherapy (3D-CRT) techniques for accelerated partial breast irradiation (APBI) in patients with early-stage left-sided breast cancer.

Methods and Materials: Thirty patients treated with APBI at a single institution were retrospectively replanned using both VMAT-only and hybrid (VMAT + 3D-CRT) techniques. All plans were prescribed 26 Gy in 5 fractions. Each patient was planned using the same target volumes, optimization objectives, and evaluation criteria for both techniques. Planning target volume (PTV) coverage, conformity index (CI), homogeneity index (HI), hotspot control, organ-at-risk (OAR) doses, …

Ai Integration In Radiotherapy Workflows: Emerging Trends And Best Practices, Vi T. Dinh

Radiologic Sciences

Purpose To synthesize current evidence on artificial intelligence (AI) integration in radiotherapy workflows, identify emerging application trends, and examine best practices for clinical implementation.

Method A structured literature review was conducted using PubMed, Scopus, and Google Scholar to identify peer-reviewed studies published between 2015 and 2025. Eligible studies evaluated AI applications in radiotherapy workflows, including segmentation, treatment planning, and clinical decision-making. Findings were synthesized using thematic analysis.

Results Three primary themes emerged: (a) AI-based segmentation improved contouring efficiency and reduced interobserver variability; (b) AI-assisted treatment planning enhanced dose prediction consistency and workflow reproducibility; and (c) workflow integration supported clinical decision-making …

Impact Of Mr-Linac Technology On Prostate Cancer Treatment Outcomes, Anhdiep P. Tran

Radiologic Sciences

Purpose To evaluate the impact of magnetic resonance-guided linear accelerator (MR-Linac) technology on treatment precision, clinical outcomes, and operational challenges in prostate cancer radiotherapy.

Method A systematic literature review was conducted using PubMed, Scopus, and Google Scholar to identify peer-reviewed studies published between 2018 and 2026. Eligible studies evaluated MR-Linac technology for prostate cancer and reported outcomes related to treatment precision, toxicity, workflow, and clinical effectiveness.

Results Three primary themes emerged: (a) improved treatment precision through superior soft tissue visualization, real-time target tracking, and adaptive radiotherapy; (b) improved clinical outcomes characterized by reduced radiation exposure to organs at risk, decreased …

Assault Vs. Assistance: Radiologic Technologist Decision-Making When Fall-Risk Patients Decline Assistance, Pamela O'Dowd

Radiologic Sciences

Purpose To explore how radiologic technologists experience and respond to situations involving fall-risk patients who decline assistance during imaging procedures.

Method A cross-sectional survey design was used to collect data from practicing radiologic technologists recruited through the American Society of Radiologic Technologists. Descriptive statistics, including frequencies and percentages, were analyzed using SPSS to summarize participant responses, and a thematic analysis was conducted on open-ended responses.

Results A total of 87 respondents completed the survey. Results indicated that encounters with fall-risk patients who refuse assistance are common in clinical imaging practice. Sixty-three (72.4%) technologists reported having experienced situations in which a …

Magnetic Resonance In Pregnancy: Safety Considerations, Contrast Risks, And Imaging Modality Alternatives, Lizzette Valdez

Radiologic Sciences

Purpose To examine the safety of magnetic resonance (MR) during pregnancy by evaluating fetal outcomes, contrast agent risks, and the comparative roles of MR, ultrasound, and computed tomography (CT) in prenatal imaging.

Method A literature review was conducted using PubMed and peer-reviewed radiology journals to identify studies evaluating MR safety during pregnancy. The review examined fetal and neonatal outcomes following prenatal MR exposure, trimester-specific imaging considerations, risks associated with gadolinium-based contrast agents, and comparisons among MR, ultrasound, and CT.

Results Three primary themes emerged: (a) noncontrast MR demonstrated a strong safety profile with no consistent association with adverse fetal or …

Influence Of Lumpectomy Cavity Depth On Plan Quality In 3d Arc-Based Simultaneous Integrated Boost For Whole-Breast Radiotherapy, Emmett Dwyer

Masters Projects

Abstract

Purpose: Dynamic conformal arc (DCA) is a three-dimensional (3D) radiation therapy technique that can be used to deliver a simultaneous integrated boost (SIB) during whole-breast irradiation (WBI). This study investigated whether the depth of the lumpectomy cavity affects the feasibility of creating a successful DCA SIB treatment plan for breast radiotherapy.

Methods and Materials: 30 patients who previously received WBI followed by a 3D sequential boost (SeqB) were selected for this retrospective study. A DCA plan was created for each patient and combined with the original whole-breast tangent fields to create a SIB plan. Each plan was required to …

Effect Of Hydrogel Rectal Spacers On Bladder Wall And Regional Substructure Dose In Prostate Cancer Patients Undergoing Volumetric Modulated Arc Therapy With Simultaneous Integrated Boost: A Retrospective Planning Study, Geronimo Sosa

Masters Projects

Purpose: Hydrogel rectal spacers reduce rectal dose during prostate radiotherapy, but their effect on bladder wall dose is not well characterized, particularly with volumetric modulated arc therapy with simultaneous integrated boost (VMAT-SIB). This study evaluated the effect of spacer placement on whole and regional bladder wall dose.

Methods: Twenty-nine patients treated with VMAT-SIB (70 Gy in 28 fractions) were analyzed retrospectively: 9 with and 20 without a spacer. The bladder wall was defined as the whole bladder minus a 3-mm inner margin. Primary endpoints were D0.03 cc and D1 cc; secondary endpoints included D2 cc, D3 cc, D10 cc, volume-based …

Ai-Driven Segmentation And Volumetric Response Modeling Of Liver Regions To Radiotherapy, Aashish Chandra Gupta

Dissertations and Theses (Open Access)

In liver-directed radiotherapy (RT), liver regions receiving higher doses typically undergo atrophy while contralateral/adjacent lower-dose regions may exhibit compensatory hypertrophy through regeneration of healthy tissue. Optimizing the RT plan to promote regional hypertrophy while minimizing the risk of developing atrophy has the potential to enhance post-RT liver function and long-term survivorship. However, current clinical practice largely relies on global liver dose-volume metrics during RT-planning, which may obscure favorable dose-response correlation and limit actionable guidance for clinicians. Therefore, we hypothesized that post-RT regional liver response is governed by a combination of region-specific dose-volume and patient clinical features, and that these responses …

Craniospinal Irradiation Volumetric Modulated Arc Therapy (Vmat) Planning: A Dosimetric Contrast Utilizing Anterior Avoidance Sectors, Ashleigh M. Sammataro

Masters Projects

Purpose: Craniospinal irradiation (CSI) is essential for treating pediatric and adult central nervous system malignancies, yet it exposes large volumes of normal tissue to low‑dose radiation, contributing to significant long‑term toxicity. This study evaluated whether incorporating anterior‑avoidance sectors (AVD) into volumetric modulated arc therapy (VMAT) planning would improve normal tissue sparing while maintaining target coverage and plan quality.

Materials and Methods: 8 previously treated CSI patients were retrospectively replanned using two VMAT techniques: Full Arc and AVD. All patients were simulated supine with standardized immobilization and planned in Eclipse. Identical target volumes, optimization structures, and planning objectives were used for …

Study On The Accuracy Of Varian Eclipse Mlc Modeling When Mlcs Are Open Beyond The Jaw In Breast Cancer Patient Planning Using Aaa And Acuros With Both Dual-Isocentric Technique And Mono-Isocentric Technique., Amy Rogers

Masters Projects

Accurate dose delivery at the chest wall-supraclavicular (CW-SCV) junction remains an important challenge in breast irradiation, especially when multileaf collimator (MLC) leaves are intentionally opened beyond the collimator jaws to improve junction coverage. This study evaluated the dosimetric accuracy of the Varian Eclipse treatment planning system (TPS) at the CW-SCV junction using the Anisotropic Analytical Algorithm (AAA) and Acuros XB calculation algorithms with mono-isocentric and dual-isocentric treatment techniques. A prospective phantom-based study was performed using a solid water phantom and a Varian TrueBeam linear accelerator. Twenty-four unique three-dimensional conformal treatment plan configurations were created using combinations of beam energy (6 …

Feasibility Evaluation Of Tumor Treating Fields For Brainstem Gliomas, Anthony Chen, Ryan Shah, William Shi, Noa Urman, Nadav Shapira, Nicholas Avgeropoulos, Patrick Conlon, Neil Mookerjee, Wenyin Shi

Department of Radiation Oncology Faculty Papers

PURPOSE: Tumor treating fields (TTFields) are FDA-approved for supratentorial glioblastoma, but feasibility in infratentorial tumors remains poorly defined. This simulation study evaluated TTFields dose in brainstem gliomas using patient-specific modeling with scalp-only transducer arrays.

METHODS: MRI and CT imaging from seven patients with brainstem gliomas were used for TTFields planning with MAXPOINT® (Novocure, Switzerland). Clinical target volume (CTV) was defined as enhancing tumor on T1 post-contrast MRI (Gross tumor volume, GTV) plus a 3 mm peritumoral expansion. The platform optimized scalp-only array layouts, and finite element calculations generated maps of local minimum field intensity (LMiFI, V/cm) and local minimum power …

Long-Term Quality Of Life For Patients With Merkel Cell Carcinoma Receiving Standard-Of-Care Adjuvant Radiation Therapy, Christian Paul D. Denolan, Kelsey N. Nordlund, Aya F. Salem, Devarati Mitra

Summer Research Program Abstracts

No abstract provided.

Fractionated Stereotactic Radiotherapy (Fsrt) For Symptomatic Who Grade 1 Cavernous Sinus Meningiomas: Long-Term Local Control, Clinical Response, And Toxicity Outcomes, Ryan Shah, Shray Jain, Nilanjan Haldar, Lauren A. Holt, Robert Walker, Christopher J Farrell, Md, Debanjan Haldar, James J. Evans, Gregory S. Alexander, Wenyin Shi

Department of Radiation Oncology Faculty Papers

PURPOSE: Cavernous sinus meningiomas represent a significant clinical challenge, given the high prevalence of neurological deficits and limited surgical options. Radiation therapy is often the preferred treatment. This study evaluates the effectiveness of fractionated stereotactic radiation therapy (fSRT) in achieving local control and symptomatic relief in patients with cavernous sinus meningiomas.

METHODS: This is a single-institution retrospective analysis of patients with symptomatic presumed WHO grade 1 cavernous sinus meningiomas treated with fSRT (1.8-2 Gy per fraction). Clinical data were collected by chart review. Kaplan-Meier curves were generated to assess local control. Clinical responses were evaluated for symptom improvement, stability, or …

Folr1-Targeted Actinium-225-Based Alpha-Particle Therapy Eliminates Ovarian Cancer, Neetu Singh, Esther Need, Ayden Berndt, Matthew Goff, Lydia J. Wilson, Firas Mourtada, Feng Guo, Tara Mastren, Taslim Al-Hilal, Anil K. Sood, Amit Maity, Scott C. Miller, Satoshi Minoshima, Shreya Goel, Sixiang Shi

Department of Radiation Oncology Faculty Papers

Despite the advancement in therapies, ovarian cancer treatment is challenging because of poor prognosis and high relapse associated with acquired resistance. Emerging targeted alpha particles, particularly actinium-225 (225Ac), for treating refractory cancers have opened avenues for improved therapeutic options. Here, we describe a successful example of folate receptor 1 (FOLR1)–targeted 225Ac alpha-particle therapy for treatment of ovarian cancer. Longitudinal positron emission tomography imaging demonstrated high tumor-specific uptake of αFOLR1 (anti-FOLR1 antibody) in SKOV3 xenografts. FOLR1-targeted 225Ac demonstrated high therapeutic efficacy, achieving marked tumor regression, 80% survival, and 40% complete tumor elimination. The therapy resulted in tumor-specific double-stranded DNA damage, and …

A Multimodal Artificial Intelligence Model To Guide Use Of Whole-Pelvic Radiation Therapy In Patients With Localized Prostate Cancer: Exploratory Analysis Of Rtog 9413, Mutlay Sayan, Huei-Chung Huang, Erin L. Stewart, Timothy N. Showalter, Adam P. Dicker, George Daniel Grass, Elizabeth M. Gore, Andrew Michael Mcdonald, J. Daniel Pennington, Mark A. Hallman, Igor J. Barani, I-Chow Hsu, Michael Rooney, Stephanie L. Pugh, Paul L. Nguyen, Phuoc T. Tran, Mack Roach Iii

Department of Radiation Oncology Faculty Papers

Background/Objectives: This study explored whether a multimodal artificial intelligence (MMAI) model integrating digitized histopathology and clinical features can identify prostate cancer patients who may benefit from neoadjuvant hormonal therapy (NHT) and whole-pelvic radiotherapy (WPRT). Methods: This secondary analysis of NRG/RTOG 9413 included NHT-treated patients with digitized biopsy slides and clinical data who were not part of the MMAI model optimization. A previously validated MMAI model estimated long-term risk, and Fine-Gray models evaluated interactions between MMAI-derived scores and the radiation field (WPRT vs. prostate-only RT [PORT]) for biochemical failure (BF), chosen over progression-free survival because of extended follow-up and distant metastasis …

Celiac Plexus Radiosurgery For Retroperitoneal Pain In Advanced Cancer: A Pre-Specified Secondary Analysis Of Health-Related Quality Of Life In A Phase Ii Single-Arm Trial, Aisling Barry, Ronen Fluss, Laura Dawson, David Hausner, Michael Buckstein, Talia Golin, Laurence Freedman, Marcin Miszczyk, Dayssy Diazpardo, Artur Aguiar, Dror Limon, Raphael Pfeffer, Moaz Ben-Ayun, Liat Hammer, Ziv Symon, Ofir Morag, Gali Jacobson, Adam Dicker, Jerzy Wydmanski, Camilla Zimmermann, Yaacov Lawrence

Department of Radiation Oncology Faculty Papers

BACKGROUND: Retroperitoneal pain syndrome seen in pancreatic cancer is a major clinical challenge. Celiac plexus radiosurgery, a new palliative technique for retroperitoneal pain syndrome, decreased pain levels in a phase II study. Here Health-Related Quality of Life (HRQOL) outcomes are reported.

METHODS: Evaluable patients, who were enrolled between January 2018 and December 2021, in an international single-arm Phase II ethics-approved study (NCT03323489), were included. The pre-specified secondary endpoint-change in HRQOL from baseline to 3- and 6-weeks post-treatment, was measured by the Functional Assessment of Cancer Therapy - Hepatobiliary (FACT-Hep) version 4 questionnaire. Mean change was deemed clinically significant (CS) if …

Perceptions Of Radiology Residency Staffing Models Across Years Of Training, Alex Zhang, Alexander Swantek, Adela Pouzar, Sayf Al-Katib

Posters

Case staffing is the primary method by which radiology residencies teach at the workstation. Despite this, the styles and methods for how staffing is performed have not yet been comprehensively described. Understanding these models and evaluating resident perspectives can inform best practices and enhance radiology education.

Automated Analysis Of Radiation Oncology Incident Reports Using Large Language Models, Nathan A. Dobranski

LSU Master's Theses

Patient safety incident reporting in radiation oncology requires expert analysis that is time-intensive and subject to variability. This thesis presents the development and technical validation of a locally deployed large language model (LLM) system for automated incident report analysis across multiple cancer centers. The system was designed for automated summarization and taxonomy assignment of Radiation Oncology Incident Learning System (RO-ILS) reports, operating entirely on local infrastructure to preserve patient privacy. A two-round, multi-rater evaluation methodology was employed, incorporating 600 total expert evaluations from two academic cancer centers. Round 1 established baseline performance using Mistral 7B and Mixtral 8x7B models with …

Influence Of Background Music On Proton Dose Monitors, Julia Colangeli, Rachel Felder, Nicole Geer, Favour Ihenwe, Shermineh Roodi, Sandra John Baptiste

Research Methods Poster Session 2026

This study examines the effects of background music, particularly varying bass frequencies, on dose monitor accuracy in proton therapy using the Hitachi PROBEAT-FR proton accelerator.

Reirradiation Treatment Effects In The Clinic (Retec) Proposal - Proof Of Concept Based On Spinal Cord Dose Tolerance For Reirradiation With Stereotactic Body Radiotherapy, Jimm Grimm, Anand Mahadevan, Olusola Obayomi-Davies, Scott G. Soltys, Arjun Sahgal, Kristin J. Redmond, Michael T. Milano, Wolfgang A. Tomé, Kenneth Brooks, Scott Dodd, John Austin Vargo, Gopal Subedi, Jinyu Xue, Bisher Ebid, Felix Ehret, Byung-Han Andrew Rhieu, Christoph Fürweger, Rachel Grimm, Alexander Muacevic, Vitali Moiseenko, Shalom Kalnicki, Mark Mclaughlin, Lawrence R. Kleinberg, John R. Adler, Iris C. Gibbs

College of Health Professions Faculty Papers

BACKGROUND: Since the inception of spinal radiosurgery decades ago, the factors influencing spinal cord recovery have remained unclear. Elucidating these factors would aid in reirradiation planning and delivery. We describe modeling reirradiation normal tissue complication probabilities (NTCP) from compiled published data, akin to the collaborative Quantitative Analysis of Normal Tissue Effects in the Clinic (QUANTEC) and High Dose per Fraction, Hypofractionated Treatment Effects in the Clinic (HyTEC) projects.

PURPOSE: Simple dose-time recovery factors for the spinal cord serve as a basis to propose the Reirradiation Treatment Effects in the Clinic (ReTEC) project. ReTEC aims to define human organ recovery factors …

Predicting Ventilation From Single Breathing Phase Non-Contrast Ct Using Swin Transformers, Yi-Kuan Liu, Hsu-Ting Kuo, Alaa Melek, Richard Castillo, Yevgeniy Vinogradskiy, Lili Zhao, Girish Nair, Edward Castillo

Department of Radiation Oncology Faculty Papers

BACKGROUND: Pulmonary ventilation imaging enables functional avoidance radiotherapy treatment plans by quantifying regional lung function. However, current clinical standards, such as 99𝑚Tc-based single-photon emission computed tomography (SPECT), rely on radioactive tracers, which can introduce imaging deposition artifacts. CT ventilation imaging (CTVI) methods based on both physical models and deep learning approaches currently require multiple CT images as input, such as the inhale/exhale phases of a 4DCT. While the theoretical foundation of physics-based CTVI is built on multi-phase information, the feasibility of single-phase deep learning CTV models has not been determined.

PURPOSE: While deep learning methods have predicted SPECT ventilation from …

Computed Tomography For Four-Dimensional Dose Calculation: Effect Of Detector Array Length, Inhwan Yeo, Qianyi Xu

Department of Radiation Oncology Faculty Papers

PURPOSE: Four-dimensional computed tomography (4DCT) is susceptible to a geometrical error when respiration changes upon patient shift. 4DCT using 16-cm detector arrays, not needing the shift, has been shown to improve geometrical accuracy, compared with a conventional 4DCT (4-cm array), albeit with some Hounsfield unit discrepancies. The 4DCTs were validated for 4D planning.

MATERIALS AND METHODS: A lung-mimicking phantom containing a spherical target with ten respiratory traces and three tumor-shaped targets with their traces was respectively imaged when, to each of the ten-positions/phases, the lung was moved (1) step-wisely by helical scan at each movement (ground truth; 4DCT_GT), …

Prescription Tradeoff Decision Support For Pancreas Stereotactic Body Radiation Therapy: From Templates To Artificial Intelligence Models, Yibo Xie, Manisha Palta, Ruilin Li, Wentao Wang, Qiuwen Wu, Yaorong Ge, Q. Jackie Wu, Yang Sheng

Department of Radiation Oncology Faculty Papers

Objective: To develop an artificial intelligence (AI) driven plan tradeoff decision making assistant for radiation oncologists. Methods: A user interface (UI) was developed to integrate the assistant with the treatment planning system to facilitate prescription decision process. The assistant is powered by a machine learning core which was trained to learn the balance between planning target volume (PTV) coverage and organs-at-risk (OAR) sparing. A group of 98 pancreatic stereotactic body radiation therapy (SBRT) cases were retrospectively included for this study. The clinical plan's PTV coverage was compared against the model predicted value. A 10-fold cross validation was performed for all …

A Mitochondrial Plasma Proteomic Signature Identifies Metastatic Chromophobe Renal Cell Carcinoma, Clara Steiner, Tiegang Han, Steven Safi, Wafaa Bzeih, Hadi Mansour, Eddy Saad, Jessica F. Williams, Vinay K. Giri, Liliana Ascione, Yehonatan Elon, Adam P. Dicker, Yan Tang, Toni K. Choueiri, Elizabeth P. Henske, Wenxin Xu

Department of Radiation Oncology Faculty Papers

BACKGROUND: Chromophobe renal cell carcinoma (ChRCC) is characterized by the accumulation of abnormal mitochondria, a high rate of mitochondrial DNA (mtDNA) mutations, and altered oxidative metabolism. There are no existing circulating biomarkers to distinguish metastatic ChRCC from clear cell renal cell carcinoma (ccRCC).

METHODS: High-throughput plasma proteomic profiling using the SomaScan platform was performed in 18 ChRCC (including 16 metastatic ChRCC) and 197 metastatic ccRCC patients. Data were harmonized to generate a unified 7K-protein matrix.

RESULTS: Differential expression analysis was performed using limma (version 3.62.2). Of 7272 quantified human plasma proteins, 209 were differentially expressed between ChRCC and ccRCC. Upregulated …

S6k1 Modulates Stat3 Activation To Promote Resistance To Radiotherapy In Lung Cancer, Ali Calderon-Aparicio, Noelle Francois, Tyler Grenda, Shan Xu, Olugbenga Okusanya, Jun He, Nicole L Simone

Department of Radiation Oncology Faculty Papers

Radiotherapy is a mainstay in the management of locally advanced lung cancer; however, intrinsic and acquired radioresistance contribute to poor prognosis. S6K1, a serine/threonine kinase, regulates cell growth, protein synthesis, and survival, and is increased in tumors, which is linked to enhanced survival under therapeutic stress, including radiation. The mechanisms, however, are not fully understood. This study investigates the role of S6K1 in lung cancer radioresistance and the mechanisms involved. Intrinsic radioresistance in lung cancer cells was associated with increased S6K1 activation. Pharmacologic inhibition or genetic deletion of S6K1 enhanced radiosensitivity both in vitro and in vivo, highlighting the therapeutic …

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.