2869 entries curated across talks and posters.
Poster
GPD-T-90
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Machine Learning-Based Beam Delivery Time Model for Mevion S250i with Hyperscan Technology
Accurate prediction of beam delivery time (BDT) is essential for operational efficiency, 4D dose calculations, and advanced proton therapy techniques such as proton arc therapy. Despite its importance, no machine-specific BDT mod...
Giorgio Cartechini, PhD
Therapy Physics
0 people interested
Poster
GPD-T-883
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Machine Learning-Based Evaluation of Post-Treatment Dosimetry for Predicting Response to Yttrium-90 Radioembolization In Hepatocellular Carcinoma
Radiation segmentectomy using yttrium-90 (Y‑90) transarterial radioembolization (TARE) is an established treatment for hepatocellular carcinoma (HCC), with the goal of achieving complete tumor necrosis through delivery of high do...
Parker Anderson
Therapy Physics
0 people interested
Poster
GPD-T-210
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Machine Learning-Based Prediction of Metastasis-Level Response to Combined SBRT and Immunotherapy
Although immune checkpoint blockade (ICB) benefits only a subset of patients, combining ICB with stereotactic body radiation therapy (SBRT) may enhance therapeutic response. Building on a validated CT-based radiomics score (RS) t...
Zhen Tian
Therapy Physics
0 people interested
Poster
GPD-D-225
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Machine Learning-Driven Dose Estimation In Biodosimetry: An Alternative to Calibration Curves In Low Dose-Protracted Exposure Scenarios
To determine whether a supervised machine learning (SML) approach to low-dose biodosimetry, trained on radiation-induced chromosomal translocations of astronauts and individual radiation response covariates, could be an alternati...
Benjamin Puzantian, MSc
Diagnostic and Interventional Radiology Physics
0 people interested
Poster
GPD-T-788
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Machine-Specific Statistical Process Control (SPC) Thresholds for MR-Linac Daily QA Trending
Daily QA tolerances are often implemented as fixed pass/fail thresholds, yet MR-Linac performance can be facility-specific and may evolve over time. This study used statistical process control (SPC) to establish global, machine-s...
Lauren A. Rigsby
Therapy Physics
0 people interested
Poster
GPD-T-812
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Making Adaptive Radiotherapy Routine: A High-Throughput Adaptive–IGRT Clinical Workflow
Weekly or triggered online adaptive radiotherapy has not been widely adopted in clinical practice because of the time and resource demands. Although the Ethos platform enables CBCT-based online adaptive radiotherapy, daily adapta...
Yi-Fang Wang, PhD
Therapy Physics
0 people interested
Poster
GPD-T-832
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Making Label Noise Useful: Uncertainty-Aware Prediction of Radiation-Induced Toxicity from Spatial Dose Information
Accurate prediction of radiation-induced toxicity is crucial for optimizing radiotherapy outcomes, yet most existing models rely on supervised learning with clinician-graded toxicity scores that are susceptible to patient self-re...
Ming Chao, PhD
Therapy Physics
0 people interested
Poster
GPD-T-376
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Mamba Gan–Driven Synthetic CT Generation from CBCT for Online Adaptive Proton Therapy
CBCT is routinely acquired prior to proton therapy for patient setup. However, the limited image quality of CBCT compromises the dose calculation accuracy and limits its use for treatment plan adjustments. This study aims to deve...
Tie Lv, Ph.D.
Therapy Physics
0 people interested
Poster
GPD-R-54
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Mamba-MS-Unet: 3D State-Space Modeling for High-Fidelity PET Synthesis from CT In Lung Cancer
To develop a clinically adaptable 3D deep learning framework for synthesizing quantitative PET images from routine CT volumes, enabling reliable metabolic assessment for lung cancer while reducing reliance on additional PET scans.
Xue Li
Radiopharmaceuticals, Theranostics, and Nuclear Medicine
0 people interested
Poster
GPD-T-209
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Mapping Clinically Relevant Dose×LET Differences for Skin Sparing with Spot Delete In Head‑and‑Neck Proton Therapy
In proton therapy, conventional DVH comparisons may be insensitive to planning changes intended to reduce LET‑associated biological risk in normal tissues, despite clinically observed reductions in toxicity. Dose–LET volume histo...
Samantha G. Hedrick, PhD
Therapy Physics
0 people interested
Poster
GPD-T-304
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Margin Calculation for Fundus Image Registration In Ocular Proton Therapy Planning
The delineation of uveal melanoma for proton beam therapy can be guided by 2D fundus photography registered to a patient-specific 3D eye model. However, the mapping suffers from camera-specific distortions and is further impacted...
Jörg Wulff, PhD
Therapy Physics
0 people interested
Poster
GPD-D-61
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Material Quantification Accuracy of Calcium and Iodine Using Deep Silicon Photon Counting CT
Deep silicon photon counting CT can produce quantitative CT images with every scan, leveraging 8 energy bins to quantify material densities. This study evaluates the material decomposition (MD) and virtual monoenergetic image (VM...
Adam S. Wang, PhD
Diagnostic and Interventional Radiology Physics
0 people interested
Poster
GPD-T-948
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Mathematical Modeling of Immuno-Radiotherapy Treatments
This study aims to develop a mathematical model to understand the dynamics of immunotherapy and radiotherapy interactions for non-small cell lung cancer (NSCLC), focusing on how tumor and immune cells interact under the effects o...
Ehsan Salari, PhD
Therapy Physics
0 people interested
Poster
GPD-T-636
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
MDA-Transunet: A Deep Learning-Based Automatic Segmentation Method for Cervical Cancer Brachytherapy
Accurate delineation of the high-risk clinical target volume (HR-CTV) and organs at risk (OARs) is critical for cervical cancer brachytherapy. However, treatment planning is time-consuming, and prolonged waiting can lead to organ...
Dezheng Cao
Therapy Physics
0 people interested
Poster
GPD-T-882
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Measurement-Based Evaluation of the Robustness of Virtual Bolus–Generated Skin Flash In Breast Volumetric Modulated Arc Therapy
This study aimed to quantitatively investigate the robustness of virtual bolus (VB)–generated skin flash under respiratory motion in breast volumetric modulated arc therapy (VMAT) using measurement-based dosimetry.
Ryohei Yamauchi
Therapy Physics
0 people interested
Poster
GPD-R-30
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Mechanistically Coupled Physiologically Based Pharmacokinetic-Pharmacodynamic Modeling for Analysis and Optimization of Lu-177-PSMA Therapies: Patient-Specific Model Fitting
Radiopharmaceutical therapies (RPTs) effectively treat metastatic castration-resistant prostate cancer, yet injected radioactivities remain empirically prescribed. Although physiologically-based pharmacokinetic (PBPK) and pharmac...
Taylor J McColl, PhD
Radiopharmaceuticals, Theranostics, and Nuclear Medicine
0 people interested
Poster
GPD-T-517
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Mechanistical Modeling of Radiation Response of Parotid In Head and Neck Cancer Radiotherapy
Radiotherapy (RT) for head and neck (HN) cancer frequently induces xerostomia due to radiation‑mediated parotid gland damage. Mechanistic modeling of parotid response may improve understanding of toxicity development and enable m...
Xingyi Zhao
Therapy Physics
0 people interested
Poster
GPD-T-635
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Medical Image Synthesis for Expediting the Diagnosis to Treatment Pathway In Radiation Oncology
To expedite the diagnosis-to-treatment workflow in radiation oncology, this work evaluates a machine learning approach for generating synthetic radiation therapy (RT) planning images directly from diagnostic computed tomography (...
Sophia Lollino
Therapy Physics
0 people interested
Poster
GPD-P-1
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Medical Physics Education, Clinical Training, and Workforce Disparities In Low- and Middle-Income Countries: A Cross-Sectional Survey
Medical physics is essential to the safe and effective use of ionizing radiation in radiotherapy, diagnostic imaging, and nuclear medicine, with clinically qualified medical physicists (QMPs) playing a critical role in quality as...
Md Jobairul Islam
Professional
0 people interested
Poster
GPD-T-208
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Megavoltage CT–Assisted Mitigation of Metallic Implant–Induced Uncertainties In Intensity-Modulated Proton Therapy for Head and Neck Cancer
Metallic implants within the clinical target volume (CTV) introduce substantial uncertainties in intensity-modulated proton therapy (IMPT) for head and neck cancer (HNC). This work introduces megavoltage CT (MVCT)-assisted uncert...
Dayananda Sharma, Prof and Head / PhD
Therapy Physics
0 people interested
Poster
GPD-T-634
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Mesh-Based Ultrasound Bladder Volume Estimation for Radiotherapy Enabled By Point-Cloud Completion and Crust Triangulation
Accurate, frequent bladder volume monitoring is essential in pelvic radiotherapy because inter-fraction filling variability affects target coverage and organ-at-risk sparing. Yet current options are suboptimal: CBCT offers 3D ana...
Wenjing Wang
Therapy Physics
0 people interested
Poster
GPD-R-4
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Mesh-Free Blood Flow Simulation for Liver Cancer Therapy Using Physics-Informed Neural Networks
To develop and validate a Physics-Informed Neural Network (PINN) framework for simulating blood flow in hepatic arteries, serving as a proof-of-concept for modeling Y-90 microsphere distribution for liver cancer radioembolization...
Erfan Taatizadeh, PhD
Radiopharmaceuticals, Theranostics, and Nuclear Medicine
0 people interested
Poster
GPD-T-119
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Metabolic Constraints Limit DNA Repair Following Radiation Exposure
Radiotherapy is central in lung cancer treatment, but many tumors are intrinsically radioresistant. A mechanism of radioresistance in lung cancer is mutations in the KEAP1 gene, which is present in a significant number (15-20%) o...
Scott James Bright
Therapy Physics
0 people interested
Poster
GPD-T-990
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Microdosimetric Modeling of CBE for BNCT Considering Subcellular B-10 Heterogeneity
In boron neutron capture therapy (BNCT), heterogeneous subcellular distributions of 10B critically affect neutron energy deposition and cell-killing effectiveness. However, biophysical models explicitly incorporating subcellular...
Wenke Hu
Therapy Physics
0 people interested