Articles with "distortion" as a keyword



Clinical assessment of geometric distortion for a 0.35T MR‐guided radiotherapy system

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Published in 2021 at "Journal of Applied Clinical Medical Physics"

DOI: 10.1002/acm2.13340

Abstract: Abstract Purpose To estimate the overall spatial distortion on clinical patient images for a 0.35 T MR‐guided radiotherapy system. Methods Ten patients with head‐and‐neck cancer underwent CT and MR simulations with identical immobilization. The MR… read more here.

Keywords: radiotherapy system; distortion; guided radiotherapy; tissue ... See more keywords

Development of a vendor neutral MRI distortion quality assurance workflow

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Published in 2022 at "Journal of Applied Clinical Medical Physics"

DOI: 10.1002/acm2.13735

Abstract: Abstract With the utilization of magnetic resonance (MR) imaging in radiotherapy increasing, routine quality assurance (QA) of these systems is necessary. The assessment of geometric distortion in images used for radiotherapy treatment planning needs to… read more here.

Keywords: quality assurance; geometric distortion; scanner; distortion ... See more keywords

Assessment of MRI image distortion based on 6 consecutive years of annual QAs and measurements on 14 MRI scanners used for radiation therapy

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Published in 2022 at "Journal of Applied Clinical Medical Physics"

DOI: 10.1002/acm2.13843

Abstract: Abstract Purpose To determine the magnitude of MRI image distortion based on 6 consecutive years of annual quality assurances/measurements on 14 MRI scanners used for radiation therapy and to provide evidence for the inclusion of… read more here.

Keywords: mri scanners; image distortion; mri image; distortion ... See more keywords

Synergistic Enhancement of Electromagnetic Wave Absorption and Corrosion Resistance Properties of High Entropy Alloy Through Lattice Distortion Engineering

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Published in 2024 at "Advanced Functional Materials"

DOI: 10.1002/adfm.202400220

Abstract: High entropy alloys (HEAs) are promising electromagnetic wave absorption (EMA) materials due to its designable crystal structure, variable electromagnetic properties, and excellent corrosion resistance. However, the impedance mismatch owing to the high electric and dielectric… read more here.

Keywords: lattice distortion; corrosion resistance; absorption; distortion ... See more keywords

Jahn‐Teller Effect: Impact of Distortion on Oxygen Electrocatalysis

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Published in 2025 at "Advanced Functional Materials"

DOI: 10.1002/adfm.202516674

Abstract: The efficiency of water electrolysis is constrained by the substantial energy requirements of the anodic oxygen evolution reaction (OER) process. It is crucial to solve the issue for efficient and energy‐efficient device manufacture. Geometric distortion… read more here.

Keywords: transition metal; jahn teller; electrocatalysis; distortion ... See more keywords

Enhanced Working Voltage in Hydrated Vanadate Cathodes: Insights into [VO₆] Octahedral Distortion and V 3d Orbital Splitting

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Published in 2025 at "Advanced Functional Materials"

DOI: 10.1002/adfm.202518785

Abstract: The bi‐layered hydrated vanadate is anticipated as a promising next‐generation cathode material for high‐energy zinc‐ion batteries. However, the practical application has been impeded by undesirable voltage fade, which originates from local structure distortion induced by… read more here.

Keywords: structure; distortion; voltage; hydrated vanadate ... See more keywords
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Assessing methods for geometric distortion compensation in 7 T gradient echo functional MRI data

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Published in 2021 at "Human Brain Mapping"

DOI: 10.1002/hbm.25540

Abstract: Echo planar imaging (EPI) is widely used in functional and diffusion‐weighted MRI, but suffers from significant geometric distortions in the phase encoding direction caused by inhomogeneities in the static magnetic field (B0). This is a… read more here.

Keywords: distortion compensation; field; distortion; phase encoding ... See more keywords

Distortion of the ligand molecule as a strategy for modulating binding affinity: Further studies involving complexes of jacalin with β‐substituted disaccharides

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Published in 2017 at "IUBMB Life"

DOI: 10.1002/iub.1593

Abstract: Crystal structures of jacalin in complex with GlcNAc β‐(1,3) Gal‐β‐OMe and Gal β‐(1,3) Gal‐β‐OMe have been determined. The binding of the ligands to jacalin is similar to that of analogous α‐substituted disaccharides. However, the β‐substituted… read more here.

Keywords: strategy modulating; affinity; distortion; jacalin ... See more keywords

A script‐based method for achieving distortion‐free selected area electron diffraction

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Published in 2022 at "Microscopy Research and Technique"

DOI: 10.1002/jemt.24124

Abstract: Electron diffraction patterns obtained on a TEM contain elliptical distortion resulting from column defects. This distortion can be corrected by applying offsets to the objective lens stigmators to cancel distortions occurring further down the column.… read more here.

Keywords: distortion; electron diffraction; diffraction; stigmator values ... See more keywords

Tone injection‐based cancellation technique for nonlinear distortion reduction of modulated signals in BAW resonators

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Published in 2020 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.32670

Abstract: A technique for the reduction of third-order intermodulation distortion (IMD3) occurring in bulk acoustic wave (BAW) filters and multiplexers is presented. The method consists of using the intrinsic second-order intermodulation distortion generated by BAW filters… read more here.

Keywords: technique; reduction; tone injection; modulated signals ... See more keywords

Beam distortion due to gold fiducial markers during salvage high‐intensity focused ultrasound in the prostate

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Published in 2017 at "Medical Physics"

DOI: 10.1002/mp.12044

Abstract: Purpose: High intensity focused ultrasound (HIFU) provides a non‐invasive salvage treatment option for patients with recurrence after external beam radiation therapy (EBRT). As part of EBRT the prostate is frequently implanted with permanent fiducial markers.… read more here.

Keywords: focus; hifu; fiducial markers; distortion ... See more keywords