501 entries curated across talks and posters.
Poster
Poster Program
Jul 19 · 07:00
An Accessible Analytical Approach to Characterize the Modulation Transfer Function of Fluoroscopic Systems
Improve accessibility of Modulation Transfer Function (MTF) metrics for implementing routine quality control (QC) of fluoroscopes.
Preston Le, BS
Diagnostic and Interventional Radiology Physics
0 people interested
Poster
Poster Program
Jul 19 · 07:00
A Phantom for CT Gout Identification: Fabrication and Longevity
To develop a phantom for evaluating CT gout identification and determine phantom longevity.
William F. Sensakovic, PhD
Diagnostic and Interventional Radiology Physics
0 people interested
Poster
Poster Program
Jul 19 · 07:00
A Phantom Study on Sn100kVp Ultra-Low Dose Chest CT: Machine Learning-Assisted Automated Phantom-Less QCT Bone Mineral Density Measurement
Due to the fact that the CT value varies non-linearly with the change of tube voltage, traditional 120kVp QCT models are incompatible to CT scans with different tube voltage. In this work, we propose and validate a PL-QCT BMD cal...
Mian Huang, PhD
Diagnostic and Interventional Radiology Physics
0 people interested
Poster
Poster Program
Jul 19 · 07:00
B-Trac – Breast Tissue Rotation and Compression Apparatus for Calibration
Mammography (compressed 2D) and MRI (uncompressed 3D) capture breast tissue under different conditions, complicating tumor localization across modalities. To bridge this gap, we developed a customizable physical platform to simul...
Dayadna Hernandez Perez
Diagnostic and Interventional Radiology Physics
0 people interested
Poster
Poster Program
Jul 19 · 07:00
Comprehensive Medical Physics Assessment of Digital Mammography Equipment: A Three-Year Multi-Site Evaluation of Technical Performance and Radiation Safety at 24 Saudi Arabian Healthcare Institutions (2022–2024)
To conduct a comprehensive multi-center audit evaluating the technical performance, image quality, and radiation safety of digital mammography systems across 24 unique healthcare facilities in Saudi Arabia. This study aims to est...
Sami Alshaikh, PhD
Diagnostic and Interventional Radiology Physics
0 people interested
Poster
Poster Program
Jul 19 · 07:00
Developing Probe-Specific Depth of Penetration Baselines for Ultrasound Quality Assurance: A Quality Improvement Study
To establish standardized, probe-specific depth of penetration baselines for protocol-specific clinical use across ultrasound transducers to support routine quality assurance (QA), enable early detection of probe degradation, and...
Rasha S Makkia, PhD, MS
Diagnostic and Interventional Radiology Physics
0 people interested
Poster
Poster Program
Jul 19 · 07:00
Dose–Time–Quality Relationships In Spectral Photon‑Counting CT across Five Energy Bins
To determine the optimal balance between radiation dose, acquisition time, and diagnostic performance in spectral photon-counting CT (SPCCT).
Azza Abdelrahim Mohamed Ahmed, PhD
Diagnostic and Interventional Radiology Physics
0 people interested
Poster
Poster Program
Jul 19 · 07:00
Dynamic Segmentation of Pre-Clinical Imaging Using Deep Learning
Three-dimensional multi-organ segmentation is a critical step in preclinical micro-CT imaging for quantitative analysis and reproducibility of longitudinal studies. However, manual delineation remains time-consuming and prone to...
Moctar Mbodji, PhD Student
Diagnostic and Interventional Radiology Physics
0 people interested
Poster
Poster Program
Jul 19 · 07:00
Establishing Local Diagnostic Reference Levels (LDRL) for Low-Dose Lung Cancer Screening Ct Using a Dose Management System: Impact of Gender and Body Weight.
To establish the local diagnostic reference levels (LDRL) for low-dose CT (LDCT) using an automated dose management system and to evaluate the relative impacts of gender and body weight on radiation dose.
Yu-Ying Lin, MSc
Diagnostic and Interventional Radiology Physics
0 people interested
Poster
Poster Program
Jul 19 · 07:00
Fluoroscopy/IR Skin-Reaction Follow-up Handout: Constrained LLM Rewrites Improve Readability with Preserved Expert-Rated Fidelity and Actionability
Patient instructions for radiation-related skin effects after fluoroscopy-guided interventional procedures are integral to substantial-dose follow-up programs. Patient-facing materials often exceed health-literacy targets, riskin...
Mosa Alhamami, PhD
Diagnostic and Interventional Radiology Physics
0 people interested
Poster
Poster Program
Jul 19 · 07:00
Image Quality Analysis, Effective Dose and Radiogenic Risks Pediatric Patients Undergoing Contrast-Enhanced Computed Tomography Procedures
The purpose of this study is to evaluate image quality, effective dose, and projected cancer risk to patients during pediatric Contrast-Enhanced Computed Tomography (CECT) procedures.
Abdelmoneim Sulieman, PhD
Diagnostic and Interventional Radiology Physics
0 people interested
Poster
Poster Program
Jul 19 · 07:00
Impact of Dose on 3D Volumetric Scout Scan Water‑Equivalent Diameter Determination
Canon Healthcare Systems USA has recently introduced a volumetric planning scan, known as the 3D Landmark, designed to support automatic exposure control (AEC), automated anatomical landmark detection for scan planning, and patie...
Joseph G. Meier, PhD, BS
Diagnostic and Interventional Radiology Physics
0 people interested
Poster
Poster Program
Jul 19 · 07:00
Influence of Air Gap and Antiscatter Grid on Pediatric Fluoroscopy and Angiography Image Quality
X-ray angiography systems are used to diagnose and treat pediatric congenital heart disease. Among the substantial variability in this patient population is that patient weight ranges from <1 kg premature infants to large adolesc...
Kenneth A. Fetterly, PhD
Diagnostic and Interventional Radiology Physics
0 people interested
Poster
Poster Program
Jul 19 · 07:00
Limited-Angle CBCT Reconstruction Via Conditional Diffusion-Based Projection Extrapolation
Limited-angle cone-beam CT (CBCT) reconstruction suffers from missing projection data, leading to severe streak artifacts, structural distortions, and degraded image quality. This study proposes a conditional diffusion-based proj...
Yukun Liu
Diagnostic and Interventional Radiology Physics
0 people interested
Poster
Poster Program
Jul 19 · 07:00
Percent Depth Dose (PDD) and Tissue‑Air Ratio (TAR) Measurements Using an Acrylic Phantom and 3D‑Printed Ion Chamber Holders
This study aimed to generate system-specific Percent Depth Dose (PDD) and Tissue‑Air Ratio (TAR) curves using an acrylic slab phantom and custom 3D‑printed ion‑chamber holders.
Weiyuan Wang, PhD
Diagnostic and Interventional Radiology Physics
0 people interested
Poster
Poster Program
Jul 19 · 07:00
Quantifying Spatial Heterogeneity of Lead and Zinc In Rat Brain Tissues across Preparation Methods Using Micro-XRF
Laboratory-based micro-X-ray fluorescence(micro-XRF) offers micrometer-scale spatial profiling of elemental distribution in biological tissues. However, quantitative analysis of thin tissue sections can be influenced by instrumen...
Abu Sayed Mohammed Sayam
Diagnostic and Interventional Radiology Physics
0 people interested
Poster
Poster Program
Jul 19 · 07:00
Quantitative Evaluation of Radiomics Reproducibility In Deep Learning and Asir CT Reconstructions: A Phantom Study
To compare the reproducibility of radiomics features between deep learning (DL) and adaptive statistical iterative reconstruction (ASIR) CT images under systematic acquisition parameter variations using the GE Revolution Apex sca...
Hamid Abdollahi Nasehabad
Diagnostic and Interventional Radiology Physics
0 people interested
Poster
Poster Program
Jul 19 · 07:00
Reinforcement Learning-Driven Multimodal Medical Foundation Model for Unified Understanding, Reasoning and Generation
To develop and validate a unified multimodal medical foundation model that combines visual understanding, cross-modal generation (image-text translation), and interpretable reasoning with visual grounding, and to quantify the gai...
Wenting Chen, PhD
Diagnostic and Interventional Radiology Physics
0 people interested
Poster
Poster Program
Jul 19 · 07:00
Reliable MD Prediction from OCT
MD values quantify visual loss. Through OCT images, physicians can obtain MD values to assess patients' visual status. This task is crucial for early patient screening. However, current AI-based MD prediction methods lack interpr...
Yue Yuan, B.Sc
Diagnostic and Interventional Radiology Physics
0 people interested
Poster
Poster Program
Jul 19 · 07:00
Starting Small: Implementing a CT Protocol Optimization Program
This talk describes our organization’s CT optimization program, and how we implemented it to make efficient use of limited physicist time.
Robert J. Cropp, PhD
Diagnostic and Interventional Radiology Physics
0 people interested
Poster
Poster Program
Jul 19 · 07:00
Topology-Aware Learning for Robust Tubular Structure Segmentation In 3D Optical Microscopy
To address the persistent loss of connectivity and thickness instability in 3D microscopy segmentation of tubular structures, we propose a topology-aware learning framework that explicitly supervises tubular geometry beyond voxel...
Yiwen SUN
Diagnostic and Interventional Radiology Physics
0 people interested
Poster
Poster Program
Jul 19 · 07:00
X-Ray Tube Focal Spot Assessment Using Pinhole Digital Radiography with a Compact Detector: Signal Extraction and Mechanical Design
The x-ray tube focal spot is a key determinant of imaging system resolution. Digital pinhole radiography yields the source point spread function (PSFsource) in addition to the nominal size. Using a compact digital detector of a t...
Grant A. Budge
Diagnostic and Interventional Radiology Physics
0 people interested
Poster
Poster Program
Jul 19 · 07:00
ZA-Net: Zero-Annotation Nuclei Segmentation In Pathology Images with Vision–Language Pretrained Models
Nuclei segmentation in histopathology images is fundamental for cancer diagnosis and quantitative analysis, yet existing supervised and weakly supervised methods require extensive manual annotations. Although vision–language pre-...
Yiwen SUN
Diagnostic and Interventional Radiology Physics
0 people interested
Talk
Invited Program
2. Room 211 Diagnostic I
Jul 19 · 07:30
Powering Down Without Slowing Down: Energy Savings in CT and MRI
Diagnostic and Interventional Radiology Physics
Hannah Grover, PhD
Diagnostic and Interventional Radiology Physics
0 people interested