Image registration and fusion algorithms exist in almost every software system that creates
or uses images in radiotherapy. Most treatment planning systems support some form of …

Radiotherapy has become a critical component for the treatment of all stages and types of
lung cancer, often times being the primary gateway to a cure. However, given that radiation …

Radiation therapy (RT) of the lung requires deformation analysis. Deformable image
registration (DIR) is the fundamental method to quantify deformations for various …

Purpose Currently, four‐dimensional (4D) cone‐beam computed tomography (CBCT)
requires a 3–4 min full‐fan scan to ensure usable image quality. Recent advancements in …

Objective. Real-time imaging, a building block of real-time adaptive radiotherapy, provides
instantaneous knowledge of anatomical motion to drive delivery adaptation to improve …

Purpose: Image reconstruction and motion model estimation in four‐dimensional cone‐
beam CT (4D‐CBCT) are conventionally handled as two sequential steps. Due to the limited …

Purpose: To develop a technique to estimate onboard 4D‐CBCT using prior information and
limited‐angle projections for potential 4D target verification of lung radiotherapy. Methods …

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 …

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 …

Purpose: Currently, no 3D or 4D volumetric x‐ray imaging techniques are available for
intrafraction verification of target position during actual treatment delivery or in‐between …