An algorithm for automated modulation transfer function measurement using an edge of a PMMA phantom: Impact of field of view on spatial resolution of CT images
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Applied Clinical Medical Physics"
DOI: 10.1002/acm2.12476
Abstract: Abstract Purpose The purpose of this study was to introduce a new algorithm for automated measurement of the modulation transfer function (MTF) using an edge of a readily available phantom and to evaluate the effect… read more here.
Keywords: using edge; edge; spatial resolution; automated mtf ... See more keywords
Mapping of whole‐cerebrum resting‐state networks using ultra‐high resolution acquisition protocols
Sign Up to like & getrecommendations! Published in 2022 at "Human Brain Mapping"
DOI: 10.1002/hbm.25855
Abstract: Resting‐state functional magnetic resonance imaging (fMRI) has been used in numerous studies to map networks in the brain that employ spatially disparate regions. However, attempts to map networks with high spatial resolution have been hampered… read more here.
Keywords: spatial resolution; resting state; resolution; fmri ... See more keywords
In silico optimization of radioluminescence microscopy.
Sign Up to like & getrecommendations! Published in 2018 at "Journal of biophotonics"
DOI: 10.1002/jbio.201700138
Abstract: Radioluminescence microscopy (RLM) is a high-resolution method for imaging radionuclide uptake in live cells within a fluorescence microscopy environment. Although RLM currently provides sufficient spatial resolution and sensitivity for cell imaging, it has not been… read more here.
Keywords: spatial resolution; radioluminescence microscopy; resolution sensitivity; microscopy ... See more keywords
A spatial resolution evaluation method of endoscopic optical coherence tomography system using the annular phantom.
Sign Up to like & getrecommendations! Published in 2021 at "Journal of biophotonics"
DOI: 10.1002/jbio.202100035
Abstract: As an important biomedical imaging method, endoscopic optical coherence tomography (OCT) is necessary to check its performance regularly. The ordinary plane phantoms are only able to evaluate part of image tangent to the probe. In… read more here.
Keywords: system; annular phantom; method; oct ... See more keywords
Predicting image properties in penalized‐likelihood reconstructions of flat‐panel CBCT
Sign Up to like & getrecommendations! Published in 2019 at "Medical Physics"
DOI: 10.1002/mp.13249
Abstract: PURPOSE Model-based iterative reconstruction (MBIR) algorithms such as penalized-likelihood (PL) methods exhibit data-dependent and shift-variant properties. Image quality predictors have been derived to prospectively estimate local noise and spatial resolution, facilitating both system hardware design… read more here.
Keywords: spatial resolution; image; flat panel; noise ... See more keywords
A 3D printed modular phantom for quality assurance of image-guided small animal irradiators: Design, imaging experiments, and Monte Carlo simulations.
Sign Up to like & getrecommendations! Published in 2019 at "Medical physics"
DOI: 10.1002/mp.13525
Abstract: PURPOSE The goal of this work was to develop and test a cylindrical tissue-equivalent quality assurance (QA) phantom for micro computed tomography (microCT) image-guided small animal irradiators that overcomes deficiencies of existing phantoms due to… read more here.
Keywords: quality; image; phantom; spatial resolution ... See more keywords
Characterization of radiochromic films as a micrometer-resolution dosimeter by confocal Raman spectroscopy.
Sign Up to like & getrecommendations! Published in 2019 at "Medical physics"
DOI: 10.1002/mp.13778
Abstract: PURPOSE Micrometer-spatial resolution dosimetry has become inevitable for advanced radiotherapy techniques. A new approach using radiochromic films was developed to measure a radiation dose at a micrometer spatial resolution by confocal Raman spectroscopy. METHODS The… read more here.
Keywords: radiochromic films; resolution; spatial resolution; spectroscopy ... See more keywords
Noise and spatial resolution properties of a commercially available deep-learning based CT reconstruction algorithm.
Sign Up to like & getrecommendations! Published in 2020 at "Medical physics"
DOI: 10.1002/mp.14319
Abstract: PURPOSE To characterize the noise and spatial resolution properties of a commercially available deep-learning based CT reconstruction algorithm. METHODS Two phantom experiments were performed. The first used a multi-sized image quality phantom (Mercury v3.0, Duke… read more here.
Keywords: reconstruction; contrast; deep learning; spatial resolution ... See more keywords
Ultra‐high spatial resolution BOLD fMRI in humans using combined segmented‐accelerated VFA‐FLEET with a recursive RF pulse design
Sign Up to like & getrecommendations! Published in 2020 at "Magnetic Resonance in Medicine"
DOI: 10.1002/mrm.28415
Abstract: To alleviate the spatial encoding limitations of single‐shot echo‐planar imaging (EPI) by developing multi‐shot segmented EPI for ultra‐high‐resolution functional MRI (fMRI) with reduced ghosting artifacts from subject motion and respiration. read more here.
Keywords: resolution; high spatial; bold fmri; ultra high ... See more keywords
High spatial resolution spiral first‐pass myocardial perfusion imaging with whole‐heart coverage at 3 T
Sign Up to like & getrecommendations! Published in 2021 at "Magnetic Resonance in Medicine"
DOI: 10.1002/mrm.28701
Abstract: To develop and evaluate a high spatial resolution (1.25 × 1.25 mm2) spiral first‐pass myocardial perfusion imaging technique with whole‐heart coverage at 3T, to better assess transmural differences in perfusion between the endocardium and epicardium,… read more here.
Keywords: spiral first; high spatial; perfusion; spatial resolution ... See more keywords
Accelerated dual‐venc 4D flow MRI with variable high‐venc spatial resolution for neurovascular applications
Sign Up to like & getrecommendations! Published in 2022 at "Magnetic Resonance in Medicine"
DOI: 10.1002/mrm.29306
Abstract: Dual‐velocity encoded (dual‐venc or DV) 4D flow MRI achieves wide velocity dynamic range and velocity‐to‐noise ratio (VNR), enabling accurate neurovascular flow characterization. To reduce scan time, we present interleaved dual‐venc 4D Flow with independently prescribed,… read more here.
Keywords: spatial resolution; venc; dual venc; venc flow ... See more keywords