DCE‐MRI of the human kidney using BLADE

• Verfasst von: Lietzmann, Florian [VerfasserIn]
• Verfasst von: Zöllner, Frank G. [VerfasserIn]
• Verfasst von: Attenberger, Ulrike [VerfasserIn]
• Verfasst von: Haneder, Stefan [VerfasserIn]
• Verfasst von: Michaely, Henrik J. M. [VerfasserIn]
• Verfasst von: Schad, Lothar R. [VerfasserIn]
• Titel: DCE‐MRI of the human kidney using BLADE
• Titelzusatz: a feasibility study in healthy volunteers
• Verf.angabe: Florian Lietzmann, Frank G. Zöllner, Ulrike I. Attenberger, Stefan Haneder, Henrik J. Michaely, and Lothar R. Schad
• Jahr: 2012
• Umfang: 7 S.
• Fussnoten: First published: 29 November 2011 ; Gesehen am 10.11.2019
• Titel Quelle: Enthalten in: Journal of magnetic resonance imaging
• Ort Quelle: New York, NY : Wiley-Liss, 1991
• Jahr Quelle: 2012
• Band/Heft Quelle: 35(2012), 4, Seite 868-874
• ISSN Quelle: 1522-2586
• DOI: doi:10.1002/jmri.23509
• Datenträger: Online-Ressource
• Sprache: eng
• Bibliogr. Hinweis: Forschungsdaten: Zöllner, Frank G., 1976 - : DCE-MRI of the human kidney using BLADE
• K10plus-PPN: 158359499X

Abstract

Purpose: To evaluate the degree of motion compensation in the kidney using two different sampling methods, each in their optimized settings: A BLADE k‐space acquisition technique and a routinely used kidney perfusion acquisition scheme (TurboFLASH). Materials and Methods: Dynamic contrast enhanced magnetic resonance examinations were performed in 16 healthy volunteers on a 3 Tesla MR‐system with two parameterizations of the BLADE sequence and the standard reference acquisition scheme. Signal intensity enhanced time curves were analyzed with a mathematical model and a widely published separable compartment model on cortex regions to assess robustness versus motion artifacts. Results: BLADE‐measurements with a strip‐width of 32 lines constituted the smallest mean values for the sum of squared errors (6065 ± 4996) compared with the measurement with a strip‐width of 64 lines (13849 ± 14079) or the standard TurboFLASH (11884 ± 8076). Calculations concerning goodness of the fit of the applied compartment model yielded an overall average of the Akaike Fit Error of 732 ± 141 for BLADE (646 ± 149 for a strip‐width of 32 lines, 816 ± 53 for 64 lines) and 1626 ± 303 for the TurboFLASH (TFL) sequence. Conclusion: We demonstrated that renal dynamic contrast enhanced magnetic resonance imaging using BLADE k‐space sampling with a strip‐width of 32 is significantly less sensitive to motion than a widely published Turbo‐Flash sequence with nearly similar parameters.