2869 entries curated across talks and posters.
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Spatiotemporal Deep Learning of VMAT Direct Aperture Optimization Dynamics
Dose prediction models operate in the CT dose domain and require a conventional optimization step to translate the predicted dose into deliverable parameters in beam’s-eye view (BEV). To address the taxing direct aperture optimiz...
Sadiki Daniel
Therapy Physics
0 people interested
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Spatiotemporal Prediction of Targeted Nanomedicine Kinetics and Drug Release Using Inverse Physics-Informed Deep Learning and Quantitative MRI
The clinical translation of liposome-based chemotherapy is limited by heterogeneous drug accumulation and the barriers of the tumor microenvironment (TME). While doxorubicin loaded into nanocarriers exploits the EPR effect, its t...
Revin Toquero, PhD
Radiopharmaceuticals, Theranostics, and Nuclear Medicine
0 people interested
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Specific Absorbed Fractions and Radionuclide S Values for Human Spleen Microstructure for Radiopharmaceutical Dosimetry
Following radiopharmaceutical administration, absorbed doses can be estimated by coupling radionuclide S values with cumulated activity. For alpha-emitting radiopharmaceuticals, S values should be established at a microscale leve...
Elizabeth Marlin
Radiopharmaceuticals, Theranostics, and Nuclear Medicine
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Spectral Graph Matching for Robust Longitudinal Lesion Correspondence on Foundation-Model Segmentations
Lesion tracking establishes correspondence across imaging time points to assess disease evolution and treatment response. Despite registration-, graph-, and AI-based methods across CT, MR, PET, and PET/MR, robust correspondence i...
Fereshteh Yousefirizi, PhD
Diagnostic and Interventional Radiology Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Spectral Reconstruction of High-Energy Photon Beams from Depth Dose Curves Using Neural Networks for Beam Characterisation In Radiotherapy
Precise knowledge of high-energy photon spectra from clinical linear accelerators (linacs) is important for dosimetry in radiotherapy. High-energy photon spectra cannot be measured directly, so alternative methods are required. I...
Louisa Reimers, MSc
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Split-Beam and Dual-Spiral Dual-Energy CT Protocol Optimization for Radiotherapy Treatment Planning
To determine optimal scan and reconstruction parameters of a novel dual-energy CT (DECT) scanner for radiotherapy treatment planning across different patient scenarios.
Nils Peters
Diagnostic and Interventional Radiology Physics
0 people interested
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Split-Brain Auto-Planning a Hierarchical Multi-Agent LLM Framework for Inverse Optimization
To demonstrate a novel "Split-Brain" Multi-Agent Large Language Model framework for autonomous inverse planning in radiation oncology.
Ramesh Boggula, PhD
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Spot Scanning Proton Beam Characterization By Plastic Scintillator Detector
To investigate the response of a plastic scintillator dosimeter in quantifying depth-dose distributions and beam spot characteristics in a clinical proton therapy setting, using both Monte Carlo modeling and experimental comparis...
Saad Bin Saeed Ahmed
Therapy Physics
0 people interested
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Stability and Radiation Hardness of Plastic Scintillation Detectors for Ultra-High Dose Rate Electron Beam Dosimetry
Accurate dose measurement in ultra-high dose rate (UHDR) electron beams is essential for clinical quality assurance. Plastic scintillation detectors (PSDs) are promising candidates for UHDR dosimetry but must demonstrate radiatio...
Thibault Bernelin
Therapy Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Stability of CT Numbers for Advanced Cone-Beam Computed Tomography Imaging – across Scanners and Time
To evaluate the CT number stability of advanced cone-beam CT (CBCT) detectors installed on C-arm linacs, across detectors and time, and assess the CBCT-based dose calculation accuracy.
Vicki Trier Taasti
Therapy Physics
0 people interested
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Staged Alignment of Decoder Large Language Models for Oncology Tasks Via Radiology-Pathology Note Pairing
Decoder large language models (LLMs) like ChatGPT and Claude show excellent text understanding in general domains but remain under-aligned to oncology-specific clinical context. This study aims to design and validate an alignment...
Bo Liu
Diagnostic and Interventional Radiology Physics
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Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Standardising Radiotherapy Treatment Planning: The Role of Plan Complexity
Most radiotherapy procedures follow standardized protocols to ensure quality. However, treatment planning and optimization still remain insufficiently standardized. This study evaluates the potential of incorporating plan complex...
Victor Hernandez
Therapy Physics
0 people interested
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Standardization of Lifetime Cumulative Dose Estimation for Re-Irradiated Patients Using Whole-Body Computational Phantoms
Accurate estimation of lifetime dose accumulation in patients undergoing re-irradiation therapy is essential for assessing long-term toxicity risks and evaluating the effectiveness of multiple radiotherapy (RT) courses. Currently...
Jared Baggett, PhD
Therapy Physics
0 people interested
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Standardizing MRI Image Quality QA for Gamma Knife SRS and Fsrs across a Multicampus Radiation Medicine Network
Gamma Knife (GK) stereotactic radiosurgery (SRS) and fractionated SRS (fSRS) planning require high-fidelity MRI for accurate target delineation with minimal planning margins. This work evaluates MRI image quality across diagnosti...
Nicholas Harvey, BSc
Therapy Physics
0 people interested
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Standardizing Quality Assurance of Deep-Learning Diffusion-Weighted Imaging Using Qiba Profile and Phantom
Deep learning (DL) is increasingly used to reduce acquisition times, increase signal-to-noise ratio (SNR) and spatial resolution in magnetic resonance imaging (MRI). However, the impact on SNR and resolution is not measured in a...
Louis-Bernard St-Cyr
Diagnostic and Interventional Radiology Physics
0 people interested
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
State-Aware Non-Contact Respiratory Volume Monitoring for Dibh-Guided Radiotherapy
Respiratory motion increases setup uncertainty in thoracic and abdominal tumor radiotherapy and elevates radiation exposure to organs at risk (OARs), such as the heart and lungs. Deep inspiration breath-hold (DIBH) can effectivel...
Jiahao Yang
Therapy Physics
0 people interested
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
State of Lung SBRT across Treatment Planning Systems: Implications for Small‑Field Dosimetry
Lung stereotactic body radiotherapy (SBRT) is now standard of care for oligometastatic and small pulmonary lesions, where very small radiation fields are used. Although inhomogeneity correction algorithms have been well validated...
Indra J. Das, PhD
Therapy Physics
0 people interested
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Stepping Towards Conformal Flash Delivery: A Uhdr Multiple-Beam Study.
The goal of this project was to investigate whether the FLASH effect can be preserved when an ultra-high-dose-rate (UHDR) delivery is split into multiple beams (2, 4 or 6), all delivered within a time window (5 sec) that was prev...
Corbin Narita
Therapy Physics
0 people interested
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Stereotactic Radiosurgery In the Management of Extensive Brain Metastases In Patients with over 25 Lesions
To explore critical unanswered questions in the radiosurgical management of patients with ≥25 cumulative brain metastases (BMs), specifically: (1) whether dose-volume thresholds to uninvolved brain exist beyond which neurotoxicit...
Lena Adel Samad, MS
Therapy Physics
0 people interested
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Stopping-Power Ratio Accuracy for Proton Therapy: Photon-Counting Detector Versus Energy-Integrating Detector CT
Stopping-power ratio (SPR) is used in proton therapy to calculate the radiation dose distributions. SPR depends on tissue composition and can be calculated using multi-energy CT. This study compares the accuracy of SPR calculated...
Elisabeth R. Shanblatt
Therapy Physics
0 people interested
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Strategizing Static Angle Modulated Ports (STAMPs) Configuration In Rapidarc Dynamic (RAD) Planning for Lung Radiation Therapy
The novel treatment delivery technique RapidArc Dynamic (RAD), which combines dynamic gantry motion with static angle–modulated ports (STAMPs), offers strong potential for advanced planning and improved plan quality. However, a m...
Dongrong Yang
Therapy Physics
0 people interested
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Streamlining Reirradiation Evaluation: An Esapi-Based Script for Rapid Cumulative Dose Assessment and Consultation Reporting
With improvements in patient outcomes, re-irradiation is increasingly pursued and is becoming a common occurrence in the clinic. Safe planning requires accurate characterization of cumulative organ-at-risk (OAR) exposure across t...
Veng Jean Heng
Therapy Physics
0 people interested
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Stress Testing Cross Domain Generalization of High Field Brain Metastasis Auto Contouring on 0.55T MRI
To quantify volumetric reliability limits of a vendor brain metastasis auto contouring prototype trained only on 1.5T and 3T MRI when deployed on 0.55T MRI.
Joshua P. Kim, PhD
Therapy Physics
0 people interested
Poster
Poster Program
Exhibit Hall | Poster Lounge
Jul 19 · 15:15
Surface Dose Measurements on Varian Truebeam Linac: Comparison of Ptw Microdiamond and Microsilicon Detectors Using Extrapolation Method
To estimate surface dose on a Varian TrueBeam linear accelerator using PDD extrapolation with microDiamond and microSilicon detectors, and to assess detector-dependent differences as a function of field size.
Marios Sotiropoulos, PhD
Therapy Physics
0 people interested