2869 entries curated across talks and posters.
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Surface-Guided 3D Liver Tumor Tracking for Respiratory Motion Management Using Deep Learning
Respiratory motion management remains a challenge for radiotherapy in abdominal regions. This study aims to develop and validate a robust framework that correlates external body surface motion with internal liver tumor movement,...
Xinyi Fu
Diagnostic and Interventional Radiology Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Surface-Guided Radiotherapy for Lung SBRT: A Large-Cohort Analysis of Intrafraction Motion and Setup Accuracy
This study aims to (1) quantify time-resolved intrafraction motion in six degrees of freedom during lung SBRT delivered under optical surface monitoring system (OSMS) guidance and (2) derive clinically relevant motion metrics for...
Nima Soltani, PhD
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Sustained Utilization of Gamma Knife Radiosurgery across Four Technological Generations and Increasing Repeat Treatment Capacity over 27 Years
Gamma Knife radiosurgery (GKRS) has undergone multiple technological transitions over the past two decades. This study evaluates long-term utilization trends at a single academic institution to assess whether GKRS has remained a...
Mohammad Daniel El Basha, MS
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Synergistic Effect of Stereotactic Body Radiotherapy (SBRT) and Sini Decoction In a Lewis Lung Carcinoma Mouse Model
Stereotactic body radiotherapy (SBRT) modulates the tumor immune microenvironment and potentially induces the abscopal effect. Traditional Chinese medicine, Sini Decoction (SND), has demonstrated potential in enhancing immunity a...
Wei Wang
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Synergistic Prediction of Neoadjuvant Immunotherapy Response In Esophageal Cancer Via Multimodal Fusion of Orthogonal CT Latent Features and Vit-Based Histopathology
Predicting pathological complete response (pCR) following neoadjuvant immunotherapy (nICT) is critical for personalized management of esophageal cancer. This study develops an interpretable multimodal framework that integrates pr...
Shenlun Chen, PhD
Diagnostic and Interventional Radiology Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Synthetic Contrast Enhancement from Non‑Contrast CT for Improved Vascular Visualization In the Pediatric Abdomen Using a Sequential Slab-Based 3D Adversarial Diffusion Model
Accurate vascular visualization is essential for target delineation in pediatric radiotherapy, particularly for abdominal tumors such as Wilms tumor and neuroblastoma, where major vessels serve as key anatomical landmarks. Althou...
Jirapat Likitlersuang, PhD
Diagnostic and Interventional Radiology Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Synthetic CT Generation from Cone-Beam CT for Online Adaptive Radiotherapy Using Flow Matching and Diffusion Schrödinger Models
Synthetic CT (sCT) generation from cone-beam CT (CBCT) enables accurate online adaptive radiotherapy, to account for daily anatomical and positioning variability in radiotherapy. We introduce two models for CBCT-to-sCT generation...
Ronja Stern
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Synthetic CT Imaging for Pelvic and Abdominal MR-Only Radiotherapy: Clinical Validation on a 1.5T MR-Linac
To evaluate two prototype deep learning–based synthetic CT (sCT) generation models for pelvic and abdominal anatomies using T1-weighted and T2-weighted MR sequences. This study aims to validate their potential to enable MR-only r...
Sarah Ghandour, PhD
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Synthetic CT Validation for MR-Only Head-and-Neck Radiotherapy
MRI provides advantages for tumor and critical structure delineation in head-and-neck (H&N) radiotherapy. However, H&N MR-only workflows remain challenging due to the large field-of-view and susceptibility artifacts arising from...
Daniel Herrera
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Synthetic MRI Derived from Treatment Planning CT In Head and Neck Cancer
To develop and rigorously assess a two‑stage deep learning framework capable of generating synthetic magnetic resonance images (sMRI) directly from standard planning computed tomography (CT) scans. The overarching aim of this wor...
Prabhakar Ramachandran, PhD
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Systematic Optimization of Slit Collimator Design for MV Photon Minibeam Radiation Therapy
Minibeam radiation therapy (MBRT) is a spatially fractionated technique that produces millimeter-scale dose heterogeneity with promising normal tissue–sparing effects. Implemented using metallic collimators mounted on the accesso...
Xingyu Lu, PhD
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
T1/T2 Mapping across 3T Scanner Fleet Using Ismrm / NIST Model 130 Premium System Phantom
To establish a rapid quality-control (QC) methodology and baseline performance metrics for T1 and T2 relaxation time estimation across a multi-vendor fleet of 3T MRI systems.
Michael Cuddy, MS
Diagnostic and Interventional Radiology Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Task- and Usage-Driven Assessment of Low-Contrast Detectability In Fluoroscopy Using AI-Based Phantom Registration and Human Visibility Probabilities
Contrast-to-noise ratio (CNR) is a common alternative to human visual scoring to assess low-contrast visibility in fluoroscopy systems. We propose a task- and usage-driven framework that combines AI-based phantom registration, im...
Elisa Eccher, MSc
Diagnostic and Interventional Radiology Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Task-Efficient Modality Selection for Deep Learning–Based Pre-Operational Glioma Segmentation
Deep learning–based glioma segmentation models are commonly developed under the assumption that the standard glioma MRI protocol—T1-weighted, contrast-enhanced T1 (T1ce), T2-weighted, and FLAIR—is available; however, this assumpt...
Mahdieh Kazemimoghadam
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Teamwork Makes the AI Work: Multi-Institutions Lung SBRT GTV Autosegmentation Using Federated Learning
Developing robust AI models for radiotherapy requires large, diverse datasets, which are difficult to share between institutions due to patient confidentiality, IT restrictions, and limited local machine learning expertise. Feder...
Ben Coull-Neveu
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Temporal Resolution Analysis of a 6 MV Photon Beam from Two Linac Vendors Using a Novel 3D Cubic Electronic Detector Array
To experimentally quantify a radiotherapy beam ramp-up to treatment output, de-tuning effects, and linac dose rates for a 6 MV photon beam from two radiotherapy linac vendors.
Dante E. Roa, PhD
Therapy Physics
0 people interested
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Text-Conditioned Unified Deep Learning Model for Protocol-Aware Radiotherapy Treatment Planning
To develop a 3D unified deep learning model for predicting dose distribution of various sites and protocols by conditioning the model using text-embedding representation for each protocol.
Sangwook Kim, BEng
Therapy Physics
0 people interested
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
“That’s Not Achievable”: Evaluation of a Commercial Pre-Plan Feasibility Tool Using TG-218/TG-219 QA Metrics
To evaluate whether a commercial pre-plan feasibility tool can predict treatment plan achievability and performance against TG-218–recommended measurement-based IMRT QA criteria and TG-219 secondary dose calculation agreement.
Cassandra Stambaugh, PhD
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
The Clinical Application of the "Timmerman Tables" and the LQ Approach to Isoeffectiveness In the Re-Treatment Setting
Organ at risk dose limits as a function of varying fractionation scheme are conveniently given in the well-known “Timmerman tables”. Application of these limits in the re-treatment environment using the LQ approach (EQD2) can lea...
Robert A. Price, PhD
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
The Dependance of Helically Acquired Ctdi on Beam Width and Pitch
In 2021, helically acquired CTDI was introduced as an alternative measurement methodology to the traditional, axially acquired CTDI, with a later ACR sponsored study published in 2024. Both publications claim that the accuracy of...
Bethany Mccurley
Diagnostic and Interventional Radiology Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
The Feasibility of Direct-to-Treatment Ultra-Hypofractionated Whole-Breast Irradiation Using AI-Enabled Adaptive Radiation Therapy
Direct-to-treatment radiotherapy eliminates CT simulation and pre-planning, reduces consultation-to-treatment intervals from weeks to hours. This study evaluated the feasibility of an ultra-hypofractionated whole-breast workflow...
Shanshan Tang
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
The First Investigation of Spot Size and Its Impact on Treatment Planning Quality for Spot Scanning Proton Arc Therapy
Spot-scanning proton arc therapy(SPArc) delivers pencil beam scanning dose during continuous gantry rotation and its dosimetry depends on the underlying beam model particularly lateral spot size. This study evaluated the impact o...
Xiangkun Xu, PhD
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
The Impact of Accidentally Washing and Drying Your Personal Dosimetry Badges In the Laundry - Does It Matter?
Occasionally radiation therapy staff accidentally place their personal radiation dosimeter badges in the laundry. This study assessed the effects of standard household laundry wash/dry cycles on the dose readings of Landauer Luxe...
Justin Poon
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Theranostic Aguix Nanoparticles As an MRI Contrast Agent for Tumor Delineation
AGuIX nanoparticles, composed of a polysiloxane core with gadolinium chelates, are a theranostic agent, providing both MRI contrast and radiosensitization. The ongoing NanoBrainMets clinical trial looks to evaluate the therapeuti...
Justin Michael Stanton-Sheetz
Therapy Physics
0 people interested