A review on 4D cone‐beam CT (4D‐CBCT) in radiation therapy: Technical advances and clinical applications

Y Zhang, Z Jiang, Y Zhang, L Ren - Medical physics, 2024 - Wiley Online Library
Cone‐beam CT (CBCT) is the most commonly used onboard imaging technique for target
localization in radiation therapy. Conventional 3D CBCT acquires x‐ray cone‐beam …

Motion correction for separate mandibular and cranial movements in cone beam CT reconstructions

L Birklein, S Niebler, E Schömer, R Brylka… - Medical …, 2023 - Wiley Online Library
Background Patient motions are a repeatedly reported phenomenon in oral and
maxillofacial cone beam CT scans, leading to reconstructions of limited usability. In certain …

Non-rigid CT/CBCT to CBCT registration for online external beam radiotherapy guidance

C Zachiu, BD De Senneville, RHN Tijssen… - Physics in Medicine …, 2017 - iopscience.iop.org
Image-guided external beam radiotherapy (EBRT) allows radiation dose deposition with a
high degree of accuracy and precision. Guidance is usually achieved by estimating the …

A high-dimensional respiratory motion modeling method based on machine learning

Z Zhou, S Jiang, Z Yang, N Zhou, S Ma, Y Li - Expert Systems with …, 2024 - Elsevier
Purpose Respiratory motion of the human body remains a major challenge in procedures for
percutaneous puncture intervention. A solution is to develop a respiratory motion model. The …

McSART: an iterative model-based, motion-compensated SART algorithm for CBCT reconstruction

G Chee, D O'Connell, YM Yang… - Physics in Medicine …, 2019 - iopscience.iop.org
Abstract 4D cone beam computed tomography (CBCT) images of the thorax and abdomen
can have reduced quality due to the limited number of projections per respiratory bin used in …

Reconstruction of a high‐quality volumetric image and a respiratory motion model from patient CBCT projections

M Guo, G Chee, D O'Connell, S Dhou, J Fu… - Medical …, 2019 - Wiley Online Library
Purpose To develop and evaluate a method of reconstructing a patient‐and treatment day‐
specific volumetric image and motion model from free‐breathing cone‐beam projections …

Fluoroscopic 3D image generation from patient-specific PCA motion models derived from 4D-CBCT patient datasets: a feasibility study

S Dhou, M Alkhodari, D Ionascu, C Williams… - Journal of …, 2022 - mdpi.com
A method for generating fluoroscopic (time-varying) volumetric images using patient-specific
motion models derived from four-dimensional cone-beam CT (4D-CBCT) images was …

NuTracker: a coordinate-based neural network representation of lung motion for intrafraction tumor tracking with various surrogates in radiotherapy

C Liu, Q Wang, W Si, X Ni - Physics in Medicine & Biology, 2022 - iopscience.iop.org
Objective. Tracking tumors and surrounding tissues in real-time is critical for reducing errors
and uncertainties during radiotherapy. Existing methods are either limited by the linear …

Real-time Markerless Tracking of Lung Tumors based on 2-D Fluoroscopy Imaging using Convolutional LSTM

T Peng, Z Jiang, Y Chang, L Ren - IEEE transactions on …, 2021 - ieeexplore.ieee.org
Purpose: To investigate the feasibility of tracking targets in 2-D fluor images using a novel
deep learning network. Methods: Our model design aims to capture the consistent motion of …

Development of a four‐axis moving phantom for patient‐specific QA of surrogate signal‐based tracking IMRT

N Mukumoto, M Nakamura, M Yamada… - Medical …, 2016 - Wiley Online Library
Purpose: The purposes of this study were two‐fold: first, to develop a four‐axis moving
phantom for patient‐specific quality assurance (QA) in surrogate signal‐based dynamic …