Results 101 to 110 of about 922,854 (220)

Fiducial registration error as a statistical process control metric in image-guidance radiotherapy with fiducial markers

, 2011
Portal imaging of implanted fiducial markers has been in use for image-guided radiotherapy (IGRT) of prostate cancer, with ample attention to localization accuracy and organ motion.
Wee, L., Ung, N.M.
core   +2 more sources

Verification imaging in prostate MR-only radiotherapy: Are fiducial markers necessary? [PDF]

\ua9 2024 The Authors. Purpose/objective: MR-only radiotherapy planning exploits the benefits of MRI soft-tissue delineation, whilst negating the registration inaccuracies caused by MRI CT fusion.
Redding D, Wilkins E, O'Connor L, Pearson RA, Wyatt JJ, Taylor S, Brooks-Pearson RL, Skehan K   +7 more
core   +4 more sources

Tissue Clearing for Lymph Nodes: 3D Mapping of Nerves and the Immune Microenvironment

iNew Medicine, EarlyView.
ABSTRACT Lymph nodes (LNs) are central hubs of adaptive immunity and key relay sites for metastatic tumour cells. However, conventional two‐dimensional histology samples only a small fraction of each node, potentially missing micrometastases and multifocal involvement while obscuring long‐range spatial relationships among tumour deposits, immune ...
Guang‐Hong Su, Fei Wang, Ting‐Hong Wei, Rui Lu, Wen‐Jun Huang, Xiang Zhang, Ling Yin, Jun Li   +7 more
wiley   +1 more source

Dosimetry, Toxicity and Stability Associated With a Hyaluronic Acid‐Based Prostate‐Rectal Spacing Device During Prostate Radiation Therapy: A Retrospective Comparative Analysis

Journal of Medical Radiation Sciences, EarlyView.
Rectal spacers composed of stabilised hyaluronic acid facilitated a favourable toxicity profile compared to no spacing during prostate radiation therapy. Acute GI toxicity (grade ≥ 1) was lower in the spacer cohort (23.5% vs. 48.0%; odds ratio = 0.33, p = 0.05) with grade ≥ 2 toxicity substantially lower (2.9% vs. 20.0%).
Fadila Najem, Bridget Smith, Sary Chen, Lucinda Wood, Asmaa El‐Heneidy, Lloyd Smyth, Hodo Haxhimolla, Pat Bowden   +7 more
wiley   +1 more source

Evaluation of a Low-Power Computer Vision-Based Positioning System for a Handheld Landmine Detector Using AprilTag Markers

Instruments
A positioning system employing visual fiducial markers (AprilTags) has been implemented for use with handheld mine detection equipment. To be suitable for a battery-powered real-time application, the system has been designed to operate at low power (
Adam D. Fletcher, Edward Cheadle, John Davidson, Daniel Conniffe, Frank Podd, Anthony J. Peyton   +5 more
doaj   +1 more source

Intrafraction motion and impact of margin reduction for MR‐Linac online adaptive radiotherapy for pancreatic cancer treatments

Journal of Medical Radiation Sciences, Volume 72, Issue 1, Page 17-24, March 2025.
This analysis included quantification of intrafraction motion in pancreas stereotactic ablative radiotherapy treated on the MR‐Linac, leading to the development of adjusted (PTV) margins. Intrafraction motion indicated an average target displacement of 1–3 mm, resulting in an adjusted PTV margin of 2 mm in the right–left and superior–inferior ...
Ashleigh Fasala, Madeline Carr, Yolanda Surjan, Parmoun Daghigh, Jeremy de Leon, Abbey Burns, Vikneswary Batumalai   +6 more
wiley   +1 more source

Metric-based evaluation of fiducial markers for medical procedures

, 2019
The accurate tracking of patients during a surgery is an essential requirement of computer assisted surgery. Many tracking systems are based on permanently installed infrared camera systems to detect reflective spheres.
Hein, Björn, Kunz, Christian, Genten, Vera, Meissner, Pascal   +3 more
core   +1 more source

Knee joint line obliquity alters lateral meniscal root tension, tibiofemoral subluxation and compartment‐specific contact pressures

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose The objective was to measure effects of joint line obliquity (JLO) on meniscus posterior root tension, tibiofemoral subluxation and contact pressures. It was hypothesised that a medial JLO would increase medial meniscal (MM) root tension, medial tibiofemoral subluxation and medial compartment contact pressure, and vice versa for ...
Shuntaro Nejima, Petra Bonacic‐Bartolin, Simon Ball, Andy Williams, Richard van Arkel, Andrew Amis   +5 more
wiley   +1 more source

Dual‐Metasurface‐Integrated Fiber Array for Bidirectional Cylindrical‐Vector‐Beam Multiplexed Communication Using Off‐Axis Spatial Manipulation

Laser &Photonics Reviews, EarlyView.
A dual‐layer metasurface is integrated on a fiber‐array facet to realize compact, plug‐and‐play free‐space optical links with cylindrical vector beam (CVB) space‐division multiplexing. An optimized off‐axis collimation layer steers multiple channels, while a Dammann vortex layer performs polarization–topology conversion for bidirectional CVB (de ...
Xipeng Lu, Jinke Li, Jin Tae Kim, Shaoyan Li, Hongliang Li, Duk‐Yong Choi, Sang‐Shin Lee   +6 more
wiley   +1 more source

Fiducial markers in adjuvant setting for a patient affected by endometrial cancer: a case report. [PDF]

Front Oncol, 2023
Titone F, Restaino S, Moretti E, Vullo G, Poli A, Arcieri M, Paglietti C, Tonetto F, Parisi G, Barbui E, Trovò M, Scambia G, Driul L, Vizzielli G.   +13 more
europepmc   +1 more source