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Rapid measurement of renal artery blood flow with ungated spiral phase-contrast MRI

✍ Scribed by Jong B. Park; Juan M. Santos; Brian A. Hargreaves; Krishna S. Nayak; Graham Sommer; Bob S. Hu; Dwight G. Nishimura

Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
525 KB
Volume
21
Category
Article
ISSN
1053-1807

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✦ Synopsis

Abstract

Purpose

To verify the potential of ungated spiral phase‐contrast (USPC), which has been shown to provide accurate and reproducible time‐averaged measurements of pulsatile flow, for rapid measurement of renal artery blood flow (RABF) in vivo.

Materials and Methods

The RABF rates of 11 normal human subjects and one patient with renal failure were measured with USPC within six seconds.

Results

Rapid USPC scans produced reproducible RABF measurements (SD ≤ 9%) that agreed with the normal RABF rates known from the literature. The RABF rates of the patient with renal failure were substantially less (<50–65%) than the normal RABF rates.

Conclusion

The results demonstrate that it is now possible to obtain rapid and consistent RABF measurements within six seconds with USPC. J. Magn. Reson. Imaging 2005;21:590–595. © 2005 Wiley‐Liss, Inc.

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