Magnetic resonance, a phenomenon with a great potential in medicine, but with a complex physical background – Part 3: The basic principles of magnetic resonance imaging
<p>Two basic problems have to be solved when dealing with imaging techniques – the adequate image contrast and the spatial reconstruction of images. In this article, the basic concepts of solving these two problems in the case of magnetic resonance imaging (MRI) are shown. Based on the spin ec...
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| Format: | Article |
| Language: | English |
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Slovenian Medical Association
2014-02-01
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| Series: | Zdravniški Vestnik |
| Subjects: | |
| Online Access: | http://vestnik.szd.si/index.php/ZdravVest/article/view/1077 |
| _version_ | 1818929636425334784 |
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| author | Bojan Božič Luka Kristanc Gregor Gomišček |
| author_facet | Bojan Božič Luka Kristanc Gregor Gomišček |
| author_sort | Bojan Božič |
| collection | DOAJ |
| description | <p>Two basic problems have to be solved when dealing with imaging techniques – the adequate image contrast and the spatial reconstruction of images. In this article, the basic concepts of solving these two problems in the case of magnetic resonance imaging (MRI) are shown. Based on the spin echo, three ways of contrast optimization, i.e., spin density, T1- and T2-weighted MRI, are dealt with more thoroughly. The use of contrast media is also discussed. Furthermore, we explain the basic method of spatial encoding in MRI, i.e., the determination of the location of tissue signal source with the use of magnetic field gradients (“the principle of frequency encoding”), and the use of the Fourier transform. Finally, the back-projection reconstruction technique is presented.</p> |
| first_indexed | 2024-12-20T03:47:57Z |
| format | Article |
| id | doaj.art-df86b1017a2e4f2083a47b7e250be86b |
| institution | Directory Open Access Journal |
| issn | 1318-0347 1581-0224 |
| language | English |
| last_indexed | 2024-12-20T03:47:57Z |
| publishDate | 2014-02-01 |
| publisher | Slovenian Medical Association |
| record_format | Article |
| series | Zdravniški Vestnik |
| spelling | doaj.art-df86b1017a2e4f2083a47b7e250be86b2022-12-21T19:54:33ZengSlovenian Medical AssociationZdravniški Vestnik1318-03471581-02242014-02-01831864Magnetic resonance, a phenomenon with a great potential in medicine, but with a complex physical background – Part 3: The basic principles of magnetic resonance imagingBojan Božič0Luka Kristanc1Gregor Gomišček2Inštitut za biofiziko Medicinska fakulteta Univerza v Ljubljani Vrazov trg 2 1000 LjubljanaOsnovno zdravstvo Gorenjske ZD Kranj Gosposvetska 10 4000 KranjZdravstvena fakulteta Univerza v Ljubljani Zdravstvena pot 5 1000 Ljubljana<p>Two basic problems have to be solved when dealing with imaging techniques – the adequate image contrast and the spatial reconstruction of images. In this article, the basic concepts of solving these two problems in the case of magnetic resonance imaging (MRI) are shown. Based on the spin echo, three ways of contrast optimization, i.e., spin density, T1- and T2-weighted MRI, are dealt with more thoroughly. The use of contrast media is also discussed. Furthermore, we explain the basic method of spatial encoding in MRI, i.e., the determination of the location of tissue signal source with the use of magnetic field gradients (“the principle of frequency encoding”), and the use of the Fourier transform. Finally, the back-projection reconstruction technique is presented.</p>http://vestnik.szd.si/index.php/ZdravVest/article/view/1077MRIcontrastfrequency encodingspatial reconstructionresolution |
| spellingShingle | Bojan Božič Luka Kristanc Gregor Gomišček Magnetic resonance, a phenomenon with a great potential in medicine, but with a complex physical background – Part 3: The basic principles of magnetic resonance imaging Zdravniški Vestnik MRI contrast frequency encoding spatial reconstruction resolution |
| title | Magnetic resonance, a phenomenon with a great potential in medicine, but with a complex physical background – Part 3: The basic principles of magnetic resonance imaging |
| title_full | Magnetic resonance, a phenomenon with a great potential in medicine, but with a complex physical background – Part 3: The basic principles of magnetic resonance imaging |
| title_fullStr | Magnetic resonance, a phenomenon with a great potential in medicine, but with a complex physical background – Part 3: The basic principles of magnetic resonance imaging |
| title_full_unstemmed | Magnetic resonance, a phenomenon with a great potential in medicine, but with a complex physical background – Part 3: The basic principles of magnetic resonance imaging |
| title_short | Magnetic resonance, a phenomenon with a great potential in medicine, but with a complex physical background – Part 3: The basic principles of magnetic resonance imaging |
| title_sort | magnetic resonance a phenomenon with a great potential in medicine but with a complex physical background part 3 the basic principles of magnetic resonance imaging |
| topic | MRI contrast frequency encoding spatial reconstruction resolution |
| url | http://vestnik.szd.si/index.php/ZdravVest/article/view/1077 |
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