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Renal BOLD-MRI does not reflect renal function in chronic kidney disease

Renal blood oxygen level-dependent magnetic resonance imaging (BOLD-MRI) is a noninvasive fast technique to characterize renal function. Here we evaluated the impact of renal function on the relaxation rate (R2*) in the cortex and medulla to provide baseline data for further use of renal BOLD-MRI. T...

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Main Authors: Michaely, Henrik J. M. (Author) , Metzger, Linda Madeleine (Author) , Haneder, Stefan (Author) , Hansmann, Jan (Author) , Schönberg, Stefan (Author) , Attenberger, Ulrike (Author)
Format: Article (Journal)
Language:English
Published: 1 April 2012
In: Kidney international
Year: 2012, Volume: 81, Issue: 7, Pages: 684-689
ISSN:1523-1755
DOI:10.1038/ki.2011.455
Online Access:Verlag, Volltext: http://dx.doi.org/10.1038/ki.2011.455
Verlag, Volltext: http://www.sciencedirect.com/science/article/pii/S0085253815553702
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Author Notes:Henrik J. Michaely, Linda Metzger, Stefan Haneder, Jan Hansmann, Stefan O. Schoenberg, Ulrike I. Attenberger
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Summary:Renal blood oxygen level-dependent magnetic resonance imaging (BOLD-MRI) is a noninvasive fast technique to characterize renal function. Here we evaluated the impact of renal function on the relaxation rate (R2*) in the cortex and medulla to provide baseline data for further use of renal BOLD-MRI. This parameter was evaluated in 400 patients scheduled for abdominal imaging who underwent transversal blood oxygen level-dependent measurements with a multi-echo gradient-echo sequence with 12 echo times. The loss of phase coherence (T2*) maps were generated in which kidney regions of interest were selected to differentiate the medulla and cortex, and R2* was equated to 1/T2*. Individual R2* values were, in turn, correlated to the eGFR (MDRD formula of 280 patients with available serum creatinine measurements), age, and gender each for 1.5 and 3.0T field-strength scans of 342 patients. At both the field strengths, no significant differences in R2* of the cortex and medulla were found between patient gender, age, eGFR, or between different stages of chronic kidney disease determined using the KDOQI system. Thus, BOLD-MRI of a non-specific patient population failed to discriminate between the patients with various stages of chronic kidney disease.
Item Description:Gesehen am 29.11.2018
Physical Description:Online Resource
ISSN:1523-1755
DOI:10.1038/ki.2011.455

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