Dataset Open Access


A. Arduino; F. Pennecchi; L. Zilberti; U. Katscher; M. G. Cox

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    <subfield code="a">Electric Properties Tomography; Magnetic Resonance Imaging; Variance-covariance matrix; Shrinkage estimation; Law of propagation of uncertainty</subfield>
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    <subfield code="a">The example relies on the implementation of phase-based Helmholtz EPT collected in the open-source C++ library EPTlib 0.1.1 (, developed in the framework of the EMPIR Project 18HLT05 QUIERO (</subfield>
  <controlfield tag="001">4248879</controlfield>
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    <subfield code="u">INRIM</subfield>
    <subfield code="a">F. Pennecchi</subfield>
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    <subfield code="u">INRIM</subfield>
    <subfield code="a">L. Zilberti</subfield>
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    <subfield code="u">Philips Research Laboratories</subfield>
    <subfield code="a">U. Katscher</subfield>
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    <subfield code="u">NPL</subfield>
    <subfield code="a">M. G. Cox</subfield>
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    <subfield code="z">md5:2b00b7e207195df27fdcf4ebe729af63</subfield>
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    <subfield code="l">open</subfield>
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    <subfield code="c">2020-11-06</subfield>
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    <subfield code="u">INRIM</subfield>
    <subfield code="a">A. Arduino</subfield>
  <datafield tag="245" ind1=" " ind2=" ">
    <subfield code="a">EMUE-D5-3-EPTTissueCharacterization</subfield>
  <datafield tag="980" ind1=" " ind2=" ">
    <subfield code="a">user-emue</subfield>
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    <subfield code="a">user-inrim</subfield>
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    <subfield code="a">Creative Commons Attribution 4.0 International</subfield>
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    <subfield code="a">cc-by</subfield>
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    <subfield code="a">&lt;p&gt;Magnetic resonance-based electric properties tomography&lt;/p&gt;

&lt;p&gt;The example shows the uncertainty evaluation, under repeatability conditions, of a technique for Electric Properties Tomography (EPT), a quantitative imaging method based on Magnetic Resonance Imaging (MRI). Repeated acquisitions of MRI scans of a homogeneous cylindrical phantom are analysed with appropriate statistical techniques to evaluate the variance-covariance matrix of the EPT input. The latter is then propagated through the EPT technique according to the law of propagation of the uncertainty as described in the GUM [Activity A2.3.2].&lt;/p&gt;

&lt;p&gt;Files contained in the dataset are:&lt;/p&gt;

	&lt;li&gt;ReadMe: text file describing the EMUE-D5-3-EPTTissueCharacterization dataset&lt;/li&gt;
	&lt;li&gt;A232_Report.pdf: Report &amp;ldquo;Magnetic resonance-based electric properties tomography&amp;rdquo;&lt;/li&gt;
	&lt;li&gt;A232_Report.tex: LaTeX file to be compiled in order to produce A232_Report.pdf&lt;/li&gt;
	&lt;li&gt;CompendiumA232.bib: bibliography file&lt;/li&gt;
	&lt;li&gt;kernel-shapes.png: plot in figure 1 of A232_Report.pdf&lt;/li&gt;
	&lt;li&gt;acquired-maps.png: plot in figure 2 of A232_Report.pdf&lt;/li&gt;
	&lt;li&gt;input-cov-pixel.png: plot in figure 3 of A232_Report.pdf&lt;/li&gt;
	&lt;li&gt;output-cov.png: plot in figure 4 of A232_Report.pdf&lt;/li&gt;
	&lt;li&gt;output-distr.png: plot in figure 5 of A232_Report.pdf&lt;/li&gt;
	&lt;li&gt;code: directory containing the computational codes for the EPT software (C++) and post-processing (matlab)&lt;/li&gt;
	&lt;li&gt;code/averages.m: matlab code that computes the averages, the weighted averages and the corresponding uncertainties&lt;/li&gt;
	&lt;li&gt;code/CMakeLists.txt: cmake project for building the EPT software&lt;/li&gt;
	&lt;li&gt;code/ C++ source file of the EPT software&lt;/li&gt;
	&lt;li&gt;code/main.h: C++ header file of the EPT software&lt;/li&gt;
	&lt;li&gt;data: directory containing the input and the output data of the EPT software&lt;/li&gt;
	&lt;li&gt;data/emue-[0-2]-[1-5].toml: input configuration files for the EPT software&lt;/li&gt;
	&lt;li&gt;data/emue-sphere.h5: input dataset of scans for the EPT software&lt;/li&gt;
	&lt;li&gt;data/emue-sphere-scov.h5: input dataset of variance-covariance matrix computed with shrinkage estimation for the EPT software&lt;/li&gt;
	&lt;li&gt;data/emue-[0-2]-[1-5].log: output log files of the EPT software&lt;/li&gt;
	&lt;li&gt;data/emue-[0-2]-[1-5]-output.h5: output dataset files of the EPT software&lt;/li&gt;
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    <subfield code="a">10.5281/zenodo.4248878</subfield>
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    <subfield code="a">10.5281/zenodo.4248879</subfield>
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