Status: Bibliographieeintrag
Standort: ---
Exemplare:
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| Online-Ressource |
Verfasst von: | Kurz, Felix T. [VerfasserIn]  |
| Heiland, Sabine [VerfasserIn]  |
| Bendszus, Martin [VerfasserIn]  |
| Ziener, Christian H. [VerfasserIn]  |
Titel: | CPMG relaxation rate dispersion in dipole fields around capillaries |
Verf.angabe: | F.T. Kurz, T. Kampf, L.R. Buschle, S. Heiland, H.-P. Schlemmer, M. Bendszus, C.H. Ziener |
E-Jahr: | 2016 |
Jahr: | 9 April 2016 |
Umfang: | 14 S. |
Fussnoten: | Gesehen am 28.02.2018 |
Titel Quelle: | Enthalten in: Magnetic resonance imaging |
Ort Quelle: | Amsterdam [u.a.] : Elsevier Science, 1982 |
Jahr Quelle: | 2016 |
Band/Heft Quelle: | 34(2016), 7, Seite 875-888 |
ISSN Quelle: | 1873-5894 |
Abstract: | Transverse relaxation rates for Carr-Purcell-Meiboom-Gill (CPMG) sequences increase with inter-echo time in presence of microscopic magnetic field inhomogeneities due to nuclear spin diffusion. For a weak field approximation that includes diffusion effects, the CPMG relaxation rate shift for proton diffusion around capillaries in muscle tissue can be expressed in terms of a frequency correlation function and the inter-echo time. The present work provides an analytical expression for the local relaxation rate shift that is dependent on local blood volume fraction, diffusion coefficient, capillary radius, susceptibility difference and inter-echo time. Asymptotic regions of the model are in agreement with previous modeling results of Brooks et al., Luz et al. and Ziener et al. In comparison with simulation data, the model shows an equal or better accuracy than established approximations. Also, model behavior coincides with experimental data for rat heart and skeletal muscle. The present work provides analytical tools to extract sub-voxel information about uniform capillary networks that can be used to study capillary organization or micro-circulatory remodeling. |
DOI: | doi:10.1016/j.mri.2016.03.016 |
URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext ; Verlag: http://dx.doi.org/10.1016/j.mri.2016.03.016 |
| Volltext: http://www.sciencedirect.com/science/article/pii/S0730725X16300091 |
| DOI: https://doi.org/10.1016/j.mri.2016.03.016 |
Datenträger: | Online-Ressource |
Sprache: | eng |
Sach-SW: | Capillary |
| Correlation function |
| CPMG sequence |
| Muscle tissue |
| Susceptibility effects |
| Transverse relaxation |
K10plus-PPN: | 1570266034 |
Verknüpfungen: | → Zeitschrift |
CPMG relaxation rate dispersion in dipole fields around capillaries / Kurz, Felix T. [VerfasserIn]; 9 April 2016 (Online-Ressource)
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