FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2898088314> ?p ?o ?g. }

• W2898088314 endingPage "18" @default.
• W2898088314 startingPage "8" @default.
• W2898088314 abstract "This paper describes an automated method for extracting the apparent positions of fiducial points from 2D or 3D images of a phantom. We consider a 3D-lattice phantom for two main reasons: first, ease of manufacture and isotropy of its structure with respect to coordinate projections; second, a connected structure allowing to uniquely assess the adjacency relationship between fiducial points even if geometric distortions arising from main magnet inhomogeneity and gradient fields non-linearity is severe as observed in open-bore systems. In order to validate our proposed method and compare different choices for the parameters of our phantom (i.e. number and distance between grids and thickness of its branches) we developed in-house a software for simulating 2D or 3D volume images of the phantom, using customizable MRI sequence parameters and Spherical Harmonic Coefficients for the fields. We deem worthy of note that using simulated images is the only way to evaluate the estimated position error, since it allows to compare the estimates to their theoretical counterparts. Furthermore, the use of simulated images allows to evaluate the robustness of the method with respect to image quality in terms of Signal-to-Noise Ratios and geometric distortion, and allows to evaluate different phantom geometries without having to manufacture them. The proposed method can be easily extended to phantoms having an arbitrary overall shape, as long as it is a fully connected structure. Specifically, it is easy to design a phantom with fiducial points laying outside of the homogeneity sphere, so that indirect measurement of the fields becomes possible, for example by using the recent method proposed by Acquaviva et al. To the best of our knowledge, the proposed method outperforms other state-of-the-art methods, with an average positioning offset of 0.052 mm (with a 0.99 quantile of 0.12 mm) when working on images featuring a differential Signal-to-Noise Ratio within Region-of-Interest (ROI) equal to 105 (20.2 dB) and a ROI-to-background SNR of 20 dB. Estimating the positions of 6859 fiducial points in a volume, our highest density case, was carried out in less than 30 min on a desktop personal computer." @default.
• W2898088314 created "2018-11-02" @default.
• W2898088314 creator A5004323665 @default.
• W2898088314 creator A5055068743 @default.
• W2898088314 creator A5078064079 @default.
• W2898088314 date "2019-04-01" @default.
• W2898088314 modified "2023-09-23" @default.
• W2898088314 title "A fully automated method for accurate measurement of geometrical distortion in magnetic resonance imaging of a 3D-lattice phantom" @default.
• W2898088314 cites W1967173056 @default.
• W2898088314 cites W2004129624 @default.
• W2898088314 cites W2005645556 @default.
• W2898088314 cites W2012300893 @default.
• W2898088314 cites W2027047633 @default.
• W2898088314 cites W2131752914 @default.
• W2898088314 cites W2139609601 @default.
• W2898088314 cites W2295855793 @default.
• W2898088314 cites W2343559617 @default.
• W2898088314 cites W2565276902 @default.
• W2898088314 cites W2736317099 @default.
• W2898088314 cites W2782053372 @default.
• W2898088314 doi "https://doi.org/10.1016/j.mri.2018.10.011" @default.
• W2898088314 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/30393141" @default.
• W2898088314 hasPublicationYear "2019" @default.
• W2898088314 type Work @default.
• W2898088314 sameAs 2898088314 @default.
• W2898088314 citedByCount "2" @default.
• W2898088314 countsByYear W28980883142019 @default.
• W2898088314 countsByYear W28980883142022 @default.
• W2898088314 crossrefType "journal-article" @default.
• W2898088314 hasAuthorship W2898088314A5004323665 @default.
• W2898088314 hasAuthorship W2898088314A5055068743 @default.
• W2898088314 hasAuthorship W2898088314A5078064079 @default.
• W2898088314 hasBestOaLocation W28980883142 @default.
• W2898088314 hasConcept C104293457 @default.
• W2898088314 hasConcept C104317684 @default.
• W2898088314 hasConcept C11413529 @default.
• W2898088314 hasConcept C120665830 @default.
• W2898088314 hasConcept C121332964 @default.
• W2898088314 hasConcept C154945302 @default.
• W2898088314 hasConcept C173974348 @default.
• W2898088314 hasConcept C184050105 @default.
• W2898088314 hasConcept C185592680 @default.
• W2898088314 hasConcept C31972630 @default.
• W2898088314 hasConcept C33923547 @default.
• W2898088314 hasConcept C41008148 @default.
• W2898088314 hasConcept C55493867 @default.
• W2898088314 hasConcept C63479239 @default.
• W2898088314 hasConceptScore W2898088314C104293457 @default.
• W2898088314 hasConceptScore W2898088314C104317684 @default.
• W2898088314 hasConceptScore W2898088314C11413529 @default.
• W2898088314 hasConceptScore W2898088314C120665830 @default.
• W2898088314 hasConceptScore W2898088314C121332964 @default.
• W2898088314 hasConceptScore W2898088314C154945302 @default.
• W2898088314 hasConceptScore W2898088314C173974348 @default.
• W2898088314 hasConceptScore W2898088314C184050105 @default.
• W2898088314 hasConceptScore W2898088314C185592680 @default.
• W2898088314 hasConceptScore W2898088314C31972630 @default.
• W2898088314 hasConceptScore W2898088314C33923547 @default.
• W2898088314 hasConceptScore W2898088314C41008148 @default.
• W2898088314 hasConceptScore W2898088314C55493867 @default.
• W2898088314 hasConceptScore W2898088314C63479239 @default.
• W2898088314 hasLocation W28980883141 @default.
• W2898088314 hasLocation W28980883142 @default.
• W2898088314 hasLocation W28980883143 @default.
• W2898088314 hasOpenAccess W2898088314 @default.
• W2898088314 hasPrimaryLocation W28980883141 @default.
• W2898088314 hasRelatedWork W1549863447 @default.
• W2898088314 hasRelatedWork W2035976912 @default.
• W2898088314 hasRelatedWork W2109974539 @default.
• W2898088314 hasRelatedWork W2125927971 @default.
• W2898088314 hasRelatedWork W2282806583 @default.
• W2898088314 hasRelatedWork W2541791370 @default.
• W2898088314 hasRelatedWork W2738084969 @default.
• W2898088314 hasRelatedWork W2771387334 @default.
• W2898088314 hasRelatedWork W2954664659 @default.
• W2898088314 hasRelatedWork W3208894058 @default.
• W2898088314 hasVolume "57" @default.
• W2898088314 isParatext "false" @default.
• W2898088314 isRetracted "false" @default.
• W2898088314 magId "2898088314" @default.
• W2898088314 workType "article" @default.