Results 101 to 110 of about 617,425 (220)

Enhancing Precision in Medical Imaging: A 3D CNN Approach for Fiducial Point Detection in MRI Data

open access: yesIEEE Access
The significance of fiducial marker detection in neuroimaging cannot be overstated, as these markers serve as vital reference points for accurate spatial alignment during image registration.
M. V. Suhas   +4 more
doaj   +1 more source

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

open access: yesiNew 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   +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

open access: yesJournal 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   +7 more
wiley   +1 more source

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

open access: yesJournal 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   +6 more
wiley   +1 more source

Active Fiducial Marker-Based Precise Underwater Positioning System for Industrial and Robotics Applications

open access: yesIEEE Access
Underwater robots face significant positioning challenges, as conventional terrestrial methods like GPS and infrared motion capture fail in underwater environments due to the attenuation of electromagnetic waves.
Young-Woon Song   +4 more
doaj   +1 more source

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

open access: yesKnee 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   +5 more
wiley   +1 more source

Optimizing Fiducial Marker Placement for Improved Visual Localization

open access: yes
Adding fiducial markers to a scene is a well-known strategy for making visual localization algorithms more robust. Traditionally, these marker locations are selected by humans who are familiar with visual localization techniques.
Huang, Qiangqiang   +4 more
core   +1 more source

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

open access: yesLaser &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   +6 more
wiley   +1 more source

Pathways to care in pinyon–juniper woodlands: Insights from Indigenous‐led monitoring and a public survey

open access: yesPeople and Nature, EarlyView.
Abstract Conservation decisions often require navigating tensions among ecological, cultural, economic and social priorities. While debates frequently centre on single‐species outcomes, less is known about how care for landscapes may contribute to co‐stewardship.
Diana S. Macias   +22 more
wiley   +1 more source

Integrating bioassays and transcriptomics to detect neonicotinoid resistance in Australian Bemisia tabaci MEAM1

open access: yesPest Management Science, EarlyView.
The Bemisia tabaci MEAM1 strain GR15‐1R shows partial resistance to neonicotinoids (bottom), which correlates with an increased expression of the P450 gene CYP6CM1 compared to the insecticide‐susceptible strain SU07‐1 (top). Abstract BACKGROUND Bemisia tabaci MEAM1 is a highly invasive and polyphagous pest species of agricultural and horticultural ...
Cao (Grace) Fang   +5 more
wiley   +1 more source

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