Effects of subject motion and acquisition time on cone‐beam CT‐guided adaptive therapy for novel 6 second fast scanning protocols
CB-16.6 and CB-6 provided high-quality images for ART. Compared to FB-0.5, fast CBCT exhibited increased blurring and streaking but significantly less geometric distortion with increasing motion, leading to reduced dose delivery error in a simulated ART workflow. The complex 3D motion phantom study supported trends observed in the 1D translational phantom study. Faster CBCT (6 vs. 16.6 s) reduced blur, improving auto-contouring performance for both periodic and non-periodic motions, but the interplay between the motion period and 6 s image acquisition must be carefully managed.
Authors
- Boon‐Keng Teo
- William T. Hrinivich (ORCID: https://orcid.org/0000-0002-0048-9411)
- Alejandro Sisniega (ORCID: https://orcid.org/0000-0003-2030-2711)
- Michael Salerno (ORCID: https://orcid.org/0000-0001-7051-1031)
- Xun Jia (ORCID: https://orcid.org/0000-0001-6159-2909)
- Alexander Lu (ORCID: https://orcid.org/0000-0002-3133-8042)
- Jeffrey H. Siewerdsen (ORCID: https://orcid.org/0000-0001-6644-1317)
- David P. Adam (ORCID: https://orcid.org/0000-0002-8282-6660)
- Taoran Li (ORCID: https://orcid.org/0000-0001-7180-4258)
Institutions
- The University of Texas MD Anderson Cancer Center (US)
- Johns Hopkins University (US)
- Varian Medical Systems (United States) (US)
- University of Pennsylvania (US)
Publication Details
- Journal
- Medical Physics
- Published
- 2025-12-01
- DOI
- https://doi.org/10.1002/mp.70181
- Primary Topic
- Advanced Radiotherapy Techniques
- Type
- article
- Field-Weighted Citation Impact
- 0.00