2869 entries curated across talks and posters.
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Assessment of CBCT Post-Processing Algorithms for Head and Neck Adaptive Radiotherapy: A Cautionary Note on Dosimetric and Anatomical Accuracy
To evaluate the dosimetric and anatomical accuracy of RayStation-generated corrected cone-beam CT (cCBCT) and virtual CT (vCT) for adaptive radiotherapy (ART) in head and neck (H&N) cancer patients with significant anatomical cha...
Rui Zhang, PhD
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Assessment of Dosimetric Perturbations In Small Electron Fields Caused By Optically Stimulated Luminescent Dosimeter for In-Vivo Dosimetry
In-vivo dosimetry in electron radiotherapy ensures accurate plan delivery and patient safety. In hypofractionated treatments such as Boom-Boom radiation (2 Gy in 2 fractions) for indolent B-cell non-Hodgkin lymphomas, the use of...
Ryan Brunkhorst
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Assessment of Gafchromic Film Dosimetry for Low-Energy Proton Beams Using Geant4 Monte Carlo Simulations
Accurate dosimetry of low-energy proton beams (2–4 MeV) for radiobiological experiments is challenging due to beam modification in air. This study extends previous work on Gafchromic HD-V2 film dosimetry by quantitatively validat...
Homeira Faridnejad
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Assessment of Image Quality In Hypersight CBCT and Conventional CBCT Images Using Planning CT As the Reference through Radiomic Features
This study aims to illuminate how HyperSight CBCT compares to conventional CBCT and planning CT in terms of radiomic features, applying statistical methods such as the Kruskal-Wallis H Test and the Intra-Class Correlation Coeffic...
Mojtaba Safari
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Assessment of Lung Tumor Motion from PET/CT for Personalized Abdominal Compression Decisions In SBRT
Abdominal compression in lung SBRT aims to reduce respiratory motion, but its benefit varies among patients and may cause discomfort or limited motion reduction. PET/CT, routinely acquired for lung cancer staging, provides high-r...
Han Liu
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Assessment of PTV Margins for Unity MR-Linac Treatments Using Cine-MRI Target Motion
In comprehensive motion management (CMM), Elekta Unity MR-Linac uses cine-MRI to monitor intra-fraction target motion. Due to the lack of efficient tools to determine patient-specific treatment margin, an isotropic GTV-to-PTV mar...
Jingxi Weng
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Assessment Skin Cancer Margins Using Raman Spectroscopy
The fundamental objective is to determine extent of microscopic tumor infiltration into normal skin tissue to accurately define skin cancer brachytherapy margins.
Renee Farrell, PhD
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Association between Treatment Complexity and Procedural Fluoroscopic Radiation Exposure In Transarterial Radioembolization Using Yttrium-90 Microspheres
TheraSphere Global Dosimetry Steering Committee (DSC) defines five clinical scenarios for the treatment of hepatocellular carcinoma (HCC) using Yttrium-90 (Y-90) glass microsphere–based transarterial radioembolization (TARE), acc...
Wei Tang
Diagnostic and Interventional Radiology Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
A Statistical Framework for Modeling Paralyzable Pulse Pile-up Effects In Photon-Counting X-Ray Detectors
Photon-counting computed tomography (PCCT) is recognized as a revolutionary technology for next-generation spectral imaging. However, spectral distortion and count loss induced by pulse pile-up effects (PPEs) at high X-ray fluxes...
Yukang Song
Diagnostic and Interventional Radiology Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
A Study of Online Adaptive Planning Workflow for Pancreatic Cancer Using Adapt LTE
This study aimed to evaluate Adapt LTE, a retrospective evaluation tool by Accuray to compare past helical treatment plans against original therapy goals.
Oanh D. H. Luu, PhD
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
A Study on Tumor Boron Dose Evaluation Using a Pharmacokinetic Model Based on 18F-BPA Dynamic Positron Emission Tomography (PET) Imaging In Boron Neutron Capture Therapy (BNCT)
In BNCT, 18F-BPA-PET evaluates boron drug distribution for treatment eligibility, but is rarely incorporated into treatment planning. A key limitation is differences in drug administration protocols between PET and BNCT, which ma...
Yasunori Shuto, MSc
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
A Surface Imaging-Guided Framework for Real-Time 3D Abdominal Tumor Motion Tracking Using Patient-Specific 4DCT Models
Effective radiotherapy for upper abdominal tumors requires dose escalation but is limited by respiratory motion and the low gastrointestinal radiation tolerance. Current clinical motion management on conventional Linacs relies on...
Zhendong Zhang
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
A Synthetic-Geometry, Mlc-Aware Machine Learning Framework for Collimator Angle Selection In Single-Isocenter Multi-Target VMAT SRS
Collimator orientation in single-isocenter multi-target (SIMT) SRS significantly impacts multileaf collimator (MLC) modulation and overall plan quality. We developed a machine learning (ML) framework to identify optimal collimato...
Theodore Higgins Arsenault
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
A Systematic Evaluation of Imaging Performance across a Fleet of Cone-Beam CT Scanners
Cone-beam CT (CBCT) has rapidly expanded across diverse clinical applications, yet fleet-wide benchmarking of imaging performance remains challenging due to wide variation in acquisition hardware, reconstruction pipelines, and ve...
Raj Kumar Panta, PhD
Diagnostic and Interventional Radiology Physics
0 people interested
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
A Tabletop Platform for In Vitro Irradiation with Low-Energy Electron Bunches
Low-energy electron (LEE) beams in the kilo-electronvolt (keV) range are expected to exhibit an increased relative biological effectiveness (RBE) due to their high linear energy transfer and limited penetration depth. Emerging la...
Julian Freier, MSc
Therapy Physics
0 people interested
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
A Target-Level Oxygen Fixation Extension of the LPL Model Explains Oxygen-Mediated Flash Trends
To develop a mechanistic extension of the classical Lethal and Potentially Lethal (LPL) model that explains oxygen-mediated ultra-high dose rate (FLASH) sparing without prescribing dose-rate–dependent radiosensitivity.
Su-Min Zhou, PhD
Therapy Physics
0 people interested
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Atlas-Based Prediction of Plan Quality and Treatment Time for Gamma Knife Stereotactic Radiosurgery of Brain Metastases
To predict achievable Gamma Knife (GK) radiosurgery plan quality and treatment time through analysis of geometric features from a large atlas of previously treated brain metastases.
Nico JJ Arezza, PhD
Therapy Physics
0 people interested
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Attention-Based Deep Learning In Overall Survival Prediction for Patients with Brain Metastases Using MRI: A Multicenter Retrospective Study
To develop and validate an attention-based deep learning (DL) model to predict overall survival (OS) in patient with brain metastases (BM) using pre-treatment magnetic resonance image (MRI).
Ji Zhang
Therapy Physics
0 people interested
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Attribution Energy As a Companion Interpretability Metric for Grad-CAM In CBCT Image-Quality Assessment
Deep learning models have shown promise for image-quality rating tasks, yet the visual cues they rely on are often difficult to interpret. Grad-CAM and related saliency methods are commonly used to visualize attribution, but thes...
Jason Patrick Luce
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
A Two-Year Retrospective of a Quantitative SPECT Quality Control Program
Nuclear medicine is undergoing a paradigm shift to produce images in units of activity concentration, analogous to PET imaging. Quantitative SPECT imaging requires system calibrations. In 2024, we formally incorporated routine qu...
Rachel Barbee
Radiopharmaceuticals, Theranostics, and Nuclear Medicine
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Augmented Reality–Driven MR-Guided Interstitial Brachytherapy with Real-Time Host-Controlled Imaging Navigation
High-dose-rate interstitial brachytherapy (IB) is an effective treatment for gynecologic (GYN) malignancies but requires precise catheter placement, which can be challenging during transperineal and free-hand insertions. Augmente...
Somayeh Najafi Hamedani, Master
Therapy Physics
0 people interested
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
A Unified Foundation Model for Medical Image Analysis In Radiotherapy Via Multi-Teacher Knowledge Distillation
Foundation models (FMs) have demonstrated strong performance on challenging radiation therapy tasks such as automatic delineation, deformable image registration, and multimodal visual question answering (VQA). However, they are t...
Praveenbalaji Rajendran, PhD
Therapy Physics
0 people interested
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
A Universal Solution to Automated Compliance Verification for Clinical Trials
Clinical trials require the extraction of specific metrics from DICOM plan datasets for protocol-driven data analysis. Because these metrics vary widely across trials, it has been difficult to develop an automated system capable...
Yulong Yan, PhD
Clinical Trials Specialty Program
0 people interested
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
A Universal TPS Beam Model for Varian Truebeam SRS Treatment out-Performs Local Center-Specific Beam Models
Treatment planning system (TPS) beam modelling is identified as the largest cause of independent dosimetry audit failure. This study aims to develop and validate a universal beam model (UBM) specific to single-iso multi-target (S...
Cameron Stanton, MSc
Therapy Physics
0 people interested