Accuracy and Precision of the 5DCT Protocol
To quantify the precision and accuracy of a five-dimensional computed tomography (5DCT) free-breathing simulation approach in a large clinical cohort.
Poster Program · Therapy Physics
Author profile
Dylan P. O'Connell
Department of Radiation Oncology, University of California, Los Angeles
Dosimetric Impact and Robustness of Daily Online Adaptive Radiotherapy for Focal-Boosted Prostate Stereotactic Body Radiation Therapy
To evaluate dosimetric trends and robustness of online adaptive radiation therapy for focal-boosted prostate SBRT. Materials/
Poster Program · Therapy Physics
Implementation Science to Explore and Expand the Therapist-Led Model for Online Adaptive Radiotherapy
Online Adaptive Radiotherapy (oART) is resource and time-intensive, requiring dosimetrist, physicist, and physician involvement at each adapted fraction. The therapist-led adaptive workflow has been shown to reduce physician console-time. This study evaluates...
Poster Program · Therapy Physics
Investigating a Novel CT Density-Based Approach to Regional Lung Ventilation Mapping
Functional avoidance radiotherapy requires accurate regional lung ventilation mapping. Jacobian-based free-breathing ventilation derived from deformable image registration (DIR) of 4DCT is established but susceptible to inaccuracies caused by errors in the di...
Poster Program · Therapy Physics
Tracking Lung Tumor Regression during Radiotherapy Using 5DCT-Driven Motion-Compensated CBCT
Standard Cone-Beam CT (CBCT) has limited utility in longitudinal lung tumor response assessment due to the presence of motion artifacts. Our proposed method of motion-compensated Simultaneous Algebraic Reconstruction Technique (mcSART) addresses these artifac...
Poster Program · Therapy Physics