Medical physics challenges in clinical MR-guided radiotherapy

C Kurz, G Buizza, G Landry, F Kamp, M Rabe… - Radiation …, 2020 - Springer
The integration of magnetic resonance imaging (MRI) for guidance in external beam
radiotherapy has faced significant research and development efforts in recent years. The …

Real-time liver tumor localization via a single x-ray projection using deep graph neural network-assisted biomechanical modeling

HC Shao, J Wang, T Bai, J Chun, JC Park… - Physics in Medicine …, 2022 - iopscience.iop.org
Objective. Real-time imaging is highly desirable in image-guided radiotherapy, as it
provides instantaneous knowledge of patients' anatomy and motion during treatments and …

Real-time liver tumor localization via combined surface imaging and a single x-ray projection

HC Shao, Y Li, J Wang, S Jiang… - Physics in Medicine & …, 2023 - iopscience.iop.org
Objective. Real-time imaging, a building block of real-time adaptive radiotherapy, provides
instantaneous knowledge of anatomical motion to drive delivery adaptation to improve …

2D/3D non-rigid image registration via two orthogonal X-ray projection images for lung tumor tracking

G Dong, J Dai, N Li, C Zhang, W He, L Liu, Y Chan, Y Li… - Bioengineering, 2023 - mdpi.com
Two-dimensional (2D)/three-dimensional (3D) registration is critical in clinical applications.
However, existing methods suffer from long alignment times and high doses. In this paper, a …

Four-dimensional cone beam ct imaging using a single routine scan via deep learning

P Yang, X Ge, T Tsui, X Liang, Y Xie… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
A novel method is proposed to obtain four-dimensional (4D) cone-beam computed
tomography (CBCT) images from a routine scan in patients with upper abdominal cancer …

Real‐time liver motion estimation via deep learning‐based angle‐agnostic X‐ray imaging

HC Shao, Y Li, J Wang, S Jiang, Y Zhang - Medical physics, 2023 - Wiley Online Library
Background Real‐time liver imaging is challenged by the short imaging time (within
hundreds of milliseconds) to meet the temporal constraint posted by rapid patient breathing …

An unsupervised 2D–3D deformable registration network (2D3D-RegNet) for cone-beam CT estimation

Y Zhang - Physics in Medicine & Biology, 2021 - iopscience.iop.org
Acquiring CBCTs from a limited scan angle can help to reduce the imaging time, save the
imaging dose, and allow continuous target localizations through arc-based treatments with …

Dynamic cone-beam CT reconstruction using spatial and temporal implicit neural representation learning (STINR)

Y Zhang, HC Shao, T Pan… - Physics in Medicine & …, 2023 - iopscience.iop.org
Objective. Dynamic cone-beam CT (CBCT) imaging is highly desired in image-guided
radiation therapy to provide volumetric images with high spatial and temporal resolutions to …

Automatic liver tumor localization using deep learning‐based liver boundary motion estimation and biomechanical modeling (DL‐Bio)

HC Shao, X Huang, MR Folkert, J Wang… - Medical …, 2021 - Wiley Online Library
Purpose Recently, two‐dimensional‐to‐three‐dimensional (2D‐3D) deformable registration
has been applied to deform liver tumor contours from prior reference images onto estimated …

Advanced 4-dimensional cone-beam computed tomography reconstruction by combining motion estimation, motion-compensated reconstruction, biomechanical …

Y Zhang, X Huang, J Wang - … computing for industry, biomedicine, and art, 2019 - Springer
Dimensional cone-beam computed tomography (4D-CBCT) offers several key advantages
over conventional 3D-CBCT in moving target localization/delineation, structure de-blurring …