Comparison of breathhold versus PACE triggering in renal BOLD MRI

Blood oxygenation level dependent (BOLD) MRI is a non-invasive approach that can play an important role in investigating renal dysfunctions. To minimize respiratory motion, BOLD kidney MRI has been performed in breath hold, which may not be feasible for patients. Therefore the aim of this study is evaluating the feasibility of the PACE triggered renal BOLD MRI in comparison with breath-hold BOLD MRI. The small difference of means and the correlations between BH-BOLD and PACE-BOLD R2* values suggest that PACE-BOLD MRI can facilitate renal measurements on elderly and diseased subjects, who may have problems holding their breath.

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