Results 1 to 10 of about 12,748 (111)

Fiducial Markers Allow Accurate and Reproducible Delivery of Liver Stereotactic Body Radiation Therapy [PDF]

open access: yesCurrent Oncology, 2023
Fiducial markers are utilized for image guided radiotherapy (IGRT) alignment during the delivery of liver stereotactic body radiosurgery (SBRT). There are limited data demonstrating the impact of matching fiducials on the accuracy of liver SBRT.
Marina Moskalenko   +7 more
doaj   +2 more sources

Statistical evaluation of the effectiveness of dual amplitude-gated stereotactic body radiotherapy using fiducial markers and lung volume [PDF]

open access: yesPhysics and Imaging in Radiation Oncology, 2022
Background and purpose: The low tracking accuracy of lung stereotactic body radiotherapy (SBRT) risks reduced treatment efficacy. We used four-dimensional computed tomography (4DCT) images to determine the correlation between changes in fiducial marker ...
Yoshinori Tanabe, Hidekazu Tanaka
doaj   +2 more sources

Analytical Models for Pose Estimate Variance of Planar Fiducial Markers for Mobile Robot Localisation [PDF]

open access: yesSensors, 2023
Planar fiducial markers are commonly used to estimate a pose of a camera relative to the marker. This information can be combined with other sensor data to provide a global or local position estimate of the system in the environment using a state ...
Roman Adámek   +5 more
doaj   +2 more sources

Patient-specific respiratory motion management using lung tumors vs fiducial markers for real-time tumor-tracking stereotactic body radiotherapy [PDF]

open access: yesPhysics and Imaging in Radiation Oncology, 2023
Background and purpose: In real-time lung tumor-tracking stereotactic body radiotherapy (SBRT), tracking accuracy is related to radiotherapy efficacy. This study aimed to evaluate the respiratory movement relationship between a lung tumor and a fiducial ...
Yoshinori Tanabe   +4 more
doaj   +2 more sources

Online adaptive radiotherapy for bladder cancer using a simultaneous integrated boost and fiducial markers [PDF]

open access: yesRadiation Oncology, 2023
Purpose The aim was to assess the feasibility of online adaptive radiotherapy (oART) for bladder cancer using a focal boost by focusing on the quality of the online treatment plan and automatic target delineation, duration of the workflow and performance
Sana Azzarouali   +10 more
doaj   +2 more sources

Design, Detection, and Tracking of Customized Fiducial Markers

open access: yesIEEE Access, 2021
Fiducial markers such as QR codes, ArUco, and AprilTag have become very popular tools for labeling and camera positioning. They are robust and easy to detect, even in devices with low computing power. However, their industrial appearance deters their use
David Jurado-Rodriguez   +3 more
doaj   +3 more sources

Cyberknife Radiosurgery for Prostate Cancer after Abdominoperineal Resection (CYRANO): The Combined Computer Tomography and Electromagnetic Navigation Guided Transperineal Fiducial Markers Implantation Technique [PDF]

open access: yesCurrent Oncology, 2023
In this technical development report, we present the strategic placement of fiducial markers within the prostate under the guidance of computed tomography (CT) and electromagnetic navigation (EMN) for the delivery of ultra-hypofractionated cyberknife (CK)
Andrea Vavassori   +14 more
doaj   +2 more sources

Large-Scale Indoor Camera Positioning Using Fiducial Markers [PDF]

open access: yesSensors
Estimating the pose of a large set of fixed indoor cameras is a requirement for certain applications in augmented reality, autonomous navigation, video surveillance, and logistics.
Pablo García-Ruiz   +4 more
doaj   +2 more sources

Facial and mandibular landmark tracking with habitual head posture estimation using linear and fiducial markers [PDF]

open access: yesHealthcare Technology Letters
This study compared the accuracy of facial landmark measurements using deep learning‐based fiducial marker (FM) and arbitrary width reference (AWR) approaches. It quantitatively analysed mandibular hard and soft tissue lateral excursions and head tilting
Farhan Hasin Saad   +6 more
doaj   +2 more sources

Endoscopic Ultrasound–Guided Fiducial Placement for Stereotactic Body Radiation Therapy in Pancreatic Malignancy [PDF]

open access: yesClinical Endoscopy, 2021
Stereotactic body radiation therapy (SBRT) is an important treatment option for pancreatic cancer, which is known to be one of the malignancies with the worst prognosis. However, the high radiation doses delivered during SBRT may cause damage to adjacent
Seong-Hun Kim, Eun Ji Shin
doaj   +1 more source

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