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  Finite RF Pulse Effects on Quantitative Magnetization Transfer Imaging Using Balanced SSFP

Gloor, M., Scheffler, K., & Bieri, O. (2010). Finite RF Pulse Effects on Quantitative Magnetization Transfer Imaging Using Balanced SSFP. Poster presented at ISMRM-ESMRMB Joint Annual Meeting 2010, Stockholm, Sweden.

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 Urheber:
Gloor, M, Autor
Scheffler, K1, Autor           
Bieri, O, Autor
Affiliations:
1University of Basel Hospital, ou_persistent22              

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 Zusammenfassung: It has recently been shown that the effect of finite RF pulses can lead to considerable balanced SSFP (bSSFP) signal modulations. As bSSFP-based quantitative magnetization transfer imaging (qMTI) uses RF pulse modifications, a correction for these effects has to be included. In this work, a modification to the two-pool bSSFP equation is presented and effects on the parameter maps are assessed in human brain. This finite RF pulse correction improves the fitting quality considerably and reduces the values of the bound pool fraction F, the exchange rate kf and the transverse relaxation time of the free pool T2,f by about 10%.

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 Datum: 2010-05
 Publikationsstatus: Erschienen
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Titel: ISMRM-ESMRMB Joint Annual Meeting 2010
Veranstaltungsort: Stockholm, Sweden
Start-/Enddatum: 2010-05-01 - 2010-05-07

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Titel: ISMRM-ESMRMB Joint Annual Meeting 2010
Genre der Quelle: Konferenzband
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Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: - Artikelnummer: 5143 Start- / Endseite: - Identifikator: -