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Results for "therapeutic responses": 20 found

18F-FDG PET/CT-Based Deep Radiomic Models for Enhancing Chemotherapy Response Prediction in Breast Cancer

Authors: Ke Colin Huang, Zirui Jiang, Joshua Low, Christopher F. Njeh, Oluwaseyi Oderinde, Yong Yue

Affiliation: Purdue University, Indiana University School of Medicine, Department of Radiation Oncology

Abstract Preview: Purpose: Enhancing the accuracy of tumor response predictions enables the development of tailored therapeutic strategies for patients with breast cancer (BCa). In this study, we developed deep-radiomi...

3D Topological Features for Outcome Assessment of Therapeutic Responses to Neoadjuvant Chemoradiotherapy (NCRT) with and without Anti-CD40 Immunotherapy in Local Advanced Rectal Cancer (LARC)

Authors: Todd A Aguilera, Gaurav Khatri, Jiaqi Liu, Hao Peng, Nina N. Sanford, Robert Timmerman, Haozhao Zhang

Affiliation: Department of Radiation Oncology, UT Southwestern Medical Center, UT southwestern medical center, UT Southwestern Medical Center, Medical Artificial Intelligence and Automation (MAIA) Lab, Department of Radiation Oncology, UT Southwestern Medical Center

Abstract Preview: Purpose:
This study first integrates 3D topological data analysis with radiomics from local advanced rectal cancer T2-weighted MRI to evaluate therapeutic responses and quantify treatment-induced c...

A Pilot Survey on Medical Physics Residency Education in External Beam Special Procedures

Authors: Courtney R. Buckey, Jay W. Burmeister, Minsong Cao, Grace Chang, Yu Kuang, Yixiang Liao, Yi Rong, Dandan Zheng

Affiliation: Mayo Clinic, Mayo Clinic Arizona, Karmanos Cancer Center, Gershenson ROC, Wayne State University School of Medicine, Department of Radiation Oncology, University of California, Los Angeles, Medical Physics Program, University of Nevada, Rush University Medical Center, University of Rochester

Abstract Preview: Purpose: Investigate the adequacy of training for therapeutic medical physics residents in select special procedures.
Methods: After a review of existing literature, a multi-institutional group dev...

A Two-Layer, Two-Task Prediction Model Based on 3D Imaging and Residual Networks for Mid-Chemoradiation Tumor Response Prediction on FDG PET for La-NSCLC

Authors: Stephen R. Bowen, Chunyan Duan, Daniel S. Hippe, Qiantuo Liu, Jing Sun, Jiajie Wang, Shouyi Wang, Faisal Yaseen, Xiaojing Zhu

Affiliation: Tongji University, University of Washington, Department of Radiation Oncology, Fred Hutchinson Cancer Center, University of Washington, Shanghai University of Electric Power, Fred Hutchinson Cancer Center, University of Texas at Arlington

Abstract Preview: Purpose: Accurate prediction of patient response to radiotherapy plays a crucial role in monitoring disease progression and assessing treatment efficacy, enabling clinicians to develop personalized th...

AI-Assisted Cellular and Organoid Analysis for Lenalidomide-Based Radioimmunotherapy Against Glioblastoma

Authors: ISAAC Amoah, Jackie Austin, Charlotte Block, Kaylee Brilz, Dylan Bui, Andrew E. Ekpenyong, Jayce Hughes, Pralhad Itani, Natasha Ratnapradipa, Sara Strom, Jacob Woolf

Affiliation: Creighton University

Abstract Preview: Purpose:
Glioblastoma (GBM) is the most common and aggressive primary brain tumor in adults, with a median survival of approximately 15 months despite the current standard of care, which includes s...

An Alpha Irradiation System for Radiobiological Studies with Versatile Dose Rate Control

Authors: Harsh Arya, Yan Chang, Yujie Chi, Varghese Anto Chirayath, Joshua Rajan, Pan Zui

Affiliation: University of Texas at Arlington, Department of Physics, University of Texas at Arlington

Abstract Preview: Purpose: In targeted alpha therapy (TAT), absorbed dose rates can vary significantly spatially and temporally, impacting therapeutic efficacy as well as carcinogenic potential. This study reports the ...

Development of Preclinical Multiscale Dosimetry for Beta-Particle Emitting Radionuclide in Radiopharmaceutical Therapy

Authors: Adedamola Adeniyi, Bryan Bednarz, Malick Bio Idrissou, Reinier Hernandez, Ohyun Kwon, Brian W. Miller, Zachary S Morris, Maya Takashima, Jamey Weichert

Affiliation: Departments of Radiation Oncology and Medical Imaging, University of Arizona, Department of Medical Physics, School of Medicine and Public Health, University of Wisconsin - Madison, Department of Medical Physics, School of Medicine and Public Health, University of Wisconsin–Madison, Department of Radiology, School of Medicine and Public Health, University of Wisconsin–Madison, Department of Human Oncology, School of Medicine and Public Health, University of Wisconsin–Madison

Abstract Preview: Purpose: As radiopharmaceutical therapy (RPT) becomes more prevalent in clinical applications, understanding dose-response relationships in the tumor microenvironment (TME) and normal tissues is essen...

Evaluating the Theranostic Potential of a Novel Shark Derived Anti-MET Vnar Antibody in NSCLC

Authors: Andrew M Baschnagel, Jonathan W. Engle, Jessica E. Griffin, Gihan Gunaratne, Reinier Hernandez, Randall J Kimple, Aaron M. LeBeau, Natalie Y. Luo, Rachel Minne, Caroline M. Mork, Kwangok P Nickel, Jayden West, Madalynn R. Wopat

Affiliation: University of Wisconsin, University of Wisconsin, Department of Pathology and Laboratory Medicine, Department of Medical Physics, School of Medicine and Public Health, University of Wisconsin–Madison, University of Wisconsin - Department of Human Oncology, UW Madison, University of Wisconsin, Department of Medical Physics

Abstract Preview: Purpose: The Mesenchymal-Epithelial Transition gene (MET), a targetable cell surface receptor responsible for stimulating cell growth and proliferation, is altered in approximately 10% of non-small ce...

Impact of Serial Passage on Radiation Response and Angiogenic Activity in Head and Neck Cancer Patient-Derived Xenografts

Authors: Liliana Berube, Randall J Kimple, Kwangok P Nickel, Hannah Sondreal

Affiliation: UW Madison

Abstract Preview: Purpose: The fidelity of patient-derived xenografts (PDXs) is crucial for their application in translational research, as it ensures that these models accurately retain the properties of the original ...

Implementation of Radiochemotherapy Applied to Virtual Spheroids Using an Open-Source Multiscale Computational Framework

Authors: Ignacio Espinoza, Ignacio Narea, Beatriz Sanchez-Nieto

Affiliation: Institute of Physics, Pontificia Universidad CatĂłlica de Chile

Abstract Preview: Purpose: This study aims to evaluate the tumor response to combined radiochemotherapy on MCF7 spheroids using an open-source multiscale computational framework. The model provides a platform to simula...

Lu-PSMA-Dose, a French Retrospective Multicentric Dosimetry Study of 177Lu-PSMA Treatments for Metastatic Castration-Resistant Prostate Cancer

Authors: NadÚge Anizan, Jean-Noël Badel, Thomas Baudier, David Broggio, Désirée Deandreis, Ludovic Ferrer, Didier Franck, Camilo Garcia, Jean Gasteuil, Anne-Laure Giraudet, Olivier Humbert, Laetitia Imbert, Malick Koulibaly, Stéphanie Lamart, Sébastien Leygnac, Alexandre Pignard, Caroline Rousseau, Guido Rovera, David Sarrut, Paul Schwartz, Nicolas Varmenot

Affiliation: Institut de CancĂ©rologie de l’Ouest, Service de MĂ©decine NuclĂ©aire, Gustave Roussy, Service de Physique MĂ©dicale, Institut BergoniĂ©, Service de Physique MĂ©dicale, CHRU de Nancy Brabois, Service de MĂ©decine NuclĂ©aire, Centre de lutte contre le cancer LĂ©on BĂ©rard, UniversitĂ© de Lyon, Centre Antoine Lacassagne, Service de MĂ©decine NuclĂ©aire, UniversitĂ© Nice CĂŽte d’Azur, Centre Antoine Lacassagne, Service de MĂ©decine NuclĂ©aire, Gustave Roussy, Service de MĂ©decine NuclĂ©aire, Institut de CancĂ©rologie de l’Ouest, Service de Physique MĂ©dicale, Service de MĂ©decine NuclĂ©aire, AutoritĂ© de SĂ»retĂ© NuclĂ©aire et de Radioprotection (ASNR), PSE-SANTE/SDOS/LEDI, AutoritĂ© de SĂ»retĂ© NuclĂ©aire et de Radioprotection (ASNR), PSE-SANTE/SDOS, CREATIS CNRS UMR 5220; INSERM U 1044; UniversitĂ© de Lyon; INSA‑Lyon, CREATIS CNRS UMR 5220; INSERM U 1044; UniversitĂ© de Lyon; INSA‑Lyon; Centre de lutte contre le cancer LĂ©on BĂ©rard, Institut BergoniĂ©, Service de MĂ©decine NuclĂ©aire

Abstract Preview: Purpose: The main objective of the Lu-PSMA-Dose study, sponsored by ASNR, is to estimate retrospectively the individual absorbed dose delivered to patients treated with 177Lu-PSMA for metastatic castr...

Modulation of the Tumor Microenvironment By Radiation Therapy to Enhance Immune Activity in Glioblastoma

Authors: MacKenzie Rachelle Coon, Justin Geise, Judith Noemi Rivera, Matthew L. Scarpelli, Jessica Leigh Veenstra, Chandler Zaugg

Affiliation: Purdue University, Indiana University

Abstract Preview: Purpose: Glioblastoma (GBM) is among the most aggressive and treatment-resistant cancers due to its immunosuppressive tumor microenvironment. Immunotherapy holds promise for GBM treatment, but its eff...

Nausea, Heartburn, K-Edge Imaging: Pepto Bismol As a CT Contrast Agent

Authors: Magdalena Bazalova-Carter, Ross I. Berbeco, James Day, Xinchen Deng, Chelsea Amanda Saffron Dunning, Dianne M. Ferguson, Matthew W. Jacobson, Toby Morris, Marios Myronakis, Jericho Daniel O'Connell, Fides Schwartz, Jainil Shah, Aaron Sodickson

Affiliation: Brigham and Womens Hospital, University of Massachsetts Lowell and Dana-Farber Cancer Institute Boston, Medical Physics Department, Medical School, University of Thessaly, Brigham and Women's Hospital, Harvard Medial School, Dana-Farber Cancer Institute, Department of Radiation Oncology, University of Washington, University of Victoria, Siemens Healthineers, Dana Farber/Brigham and Women's Cancer Center, Brigham and Women's Hospital

Abstract Preview: Purpose: While CT imaging has advanced with improved machine design, we propose further gains can be achieved by enhancing sensitivity to contrast agents. Current CT sensitivity is limited to 1% bismu...

Non-Invasive Ferumoxytol MRI Evaluation of Dual Tumors Response for Hypoxia Region after Radiotherapy

Authors: Deng-Yuan Chang, Matthew L. Scarpelli

Affiliation: Purdue University

Abstract Preview: Purpose: Tumor-associated macrophages (TAMs) can be assessed by Ferumoxytol-MRI in breast cancer because they are negatively correlated with the prognosis of patient outcome. However, some studies hav...

Presenting a Novel Treatment Scheme for Debulking Unresectable Large Tumors: Feasibility, Safety and Patient Reported Early Clinical Outcomes of SBRT Immediately Post-Spatially Fractionated Radiotherapy Delivery

Authors: James Knight II, Joshua Misa, Damodar Pokhrel, William St Clair, Eddy S Yang

Affiliation: University of Kentucky, Department of Radiation Medicine, University of Kentucky, Radiation Medicine

Abstract Preview: Purpose: Highly-heterogenous sieve-like dose distribution via SFRT to large/bulky tumors (≄6 cm) could enhance tumor cell-death via both direct/indirect cell-kill mechanisms. Adding highly-conformal S...

Radiobiological Modeling of Tumor Control and Normal Tissue Response Following Mlc-Based Sfrt to Extensive Breast and Chest Wall Tumors

Authors: Ramesh Boggula, Yash Somnay, Hualin Zhang

Affiliation: Radiation Oncology, Keck School of Medicine of USC, Wayne State University

Abstract Preview: Purpose: Spatially fractionated radiation therapy (SFRT) allows delivery of therapeutic doses to bulky tumors otherwise limited by dose-volume effects that threaten organ-at-risk tolerances. For negle...

Region-Specific Structure-Function Coupling Alterations in Parkinson’s Disease: Insights from Multi-Modal MRI

Authors: Yifei Hao, Ting Huang, Wenxuan Li, Xiang Li, Manju Liu, Rong Liu, Tao Peng, Yulu Wu, Fang-Fang Yin, Lei Zhang, Yaogong Zhang, Jiangtao Zhu

Affiliation: Duke University, Department of Radiology, The Second Affiliated Hospital of Soochow University, School of Future Science and Engineering, Soochow University, Medical Physics Graduate Program, Duke Kunshan University

Abstract Preview: Purpose: This study investigates the alterations in structure-function coupling (SC-FC) networks in Parkinson’s disease (PD) patients, focusing on region-specific disruptions and compensatory mechanis...

The Analysis of the Bifurcation from Immune-Limited to Immune-Escape Mode in Tumor Size

Authors: Young-Bin Cho, Jacob Scott, Nara Yoon

Affiliation: Adelphi University, Cleveland Clinic

Abstract Preview: Purpose: The immune system plays a critical role in determining cancer prognosis. Based on our prior study (Cho et al., 2023) about the bystander effect induced by immune responses in spatially design...

The Fermi Density Effect: Review and Discussion about Applicability on Stopping Powers and Cross Sections

Authors: Michael Dingfelder

Affiliation: East Carolina University

Abstract Preview: Purpose:
To study and accurately evaluate the influence of the Fermi Density effect on stopping powers and cross sections of charged particles in liquid water used in Monte Carlo radiation transpor...

Tumor Control Probability Estimation of Magnetic Hyperthermia and Radiation Combined Therapy in Prostate Cancer

Authors: John T Barrett, Dan Heo, Chulhaeng Huh, Farshad Mostafaei

Affiliation: Department of Radiation Oncology, Medical College of Georgia, Augusta University, Department of Radiation Oncology, Augusta University

Abstract Preview: Purpose: This study aimed to compare the tumor control probability (TCP) of radiation therapy (RT) and magnetic hyperthermia combined with RT (MHRT) in the human prostate cancer cells based on radiobi...