Original Research
Motion of the distal renal artery during three-dimensional contrast-enhanced breath-hold MRA
Article first published online: 25 NOV 2002
DOI: 10.1002/jmri.10214
Published 2002 Wiley-Liss, Inc.
Additional Information
How to Cite
Vasbinder, G. B. C., Maki, J. H., Nijenhuis, R. J., Leiner, T., Wilson, G. J., Kessels, A. G., Lemarie, E. E., Kaandorp, D. W., Ho, K. Y. J. and van Engelshoven, J. M. (2002), Motion of the distal renal artery during three-dimensional contrast-enhanced breath-hold MRA. Journal of Magnetic Resonance Imaging, 16: 685–696. doi: 10.1002/jmri.10214
Publication History
- Issue published online: 25 NOV 2002
- Article first published online: 25 NOV 2002
- Manuscript Accepted: 15 AUG 2002
- Manuscript Received: 14 MAR 2002
Funded by
- The Dutch Healthcare Insurance Board. Grant Number: OG 97-003
- Abstract
- Article
- References
- Cited By
Keywords:
- motion;
- distal renal artery;
- contrast-enhanced magnetic resonance angiography;
- kidney;
- breath-hold;
- artifacts
Abstract
Purpose
To study the potential detrimental effects of renal motion on breath-hold three-dimensional contrast-enhanced (CE) magnetic resonance angiography (MRA).
Materials and Methods
A computer model simulating linear motion was applied to MRA pulse sequences. Subsequently, to study whether renal motion was present, 24 patients being evaluated for possible renovascular hypertension underwent a breath-hold nonenhanced single slice two-dimensional dynamic turbo field-echo magnetic resonance imaging (MRI) scan with a typical duration of 32 seconds. This sequence was followed by breath-hold three-dimensional CE renal MRA. CE-MRA images were evaluated by two independent observers.
Results
The computer model revealed linear renal motion to cause artifacts. The severity of these artifacts correlated with velocity. Significant (P < 0.001) near linear cranial motion of the kidneys and diaphragm during a sustained breath-hold was found for the right kidney, left kidney, right diaphragm, and left diaphragm (0.26 ± 0.21 mm/second, 0.25 ± 0.23 mm/second, 0.43 ± 0.43 mm/second, and 0.29 ± 0.33 mm/second [mean ± SD], respectively). CE-MRA images showed artifacts of the distal renal artery that corroborated the computer model findings.
Conclusion
The observed cranial motion of the kidneys during a breath-hold adversely affects distal renal artery image quality on three-dimensional CE-MRA and jeopardizes reliable clinical evaluation. Shortening scan time may be beneficial for decreasing image degradation caused by this phenomenon. J. Magn. Reson. Imaging 2002;16:685–696. Published 2002 Wiley-Liss, Inc.

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