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Simultaneous bilateral magnetic resonance imaging of the femoral arteries in peripheral arterial disease patients

✍ Scribed by Ryan Brown; Christof Karmonik; Gerd Brunner; Alan Lumsden; Christie Ballantyne; Shawna Johnson; Yi Wang; Joel Morrisett

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
415 KB
Volume
34
Category
Article
ISSN
1053-1807

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✦ Synopsis

Abstract

Purpose:

To image the femoral arteries in peripheral arterial disease (PAD) patients using a bilateral receive coil.

Materials and Methods:

An eight‐channel surface coil array for bilateral MRI of the femoral arteries at 3T was constructed and evaluated.

Results:

The bilateral array enabled imaging of a 25‐cm segment of the superficial femoral arteries (SFA) from the profunda to the popliteal. The array provided improved the signal‐to‐noise ratio (SNR) at the periphery and similar SNR in the middle of a phantom compared to three other commercially available coils (4‐channel torso, quadrature head, whole body). Multicontrast bilateral images of the in vivo SFA with 1 mm in‐plane resolution made it possible to directly compare lesions in the index SFA to the corresponding anatomical site in the contralateral vessel without repositioning the patient or coil. A set of bilateral time‐of‐flight, T1‐weighted, T2‐weighted, and proton density‐weighted images was acquired in a clinically acceptable exam time of ≈45 minutes.

Conclusion:

The developed bilateral coil is well suited for monitoring dimensional changes in atherosclerotic lesions of the SFA. J. Magn. Reson. Imaging 2011;. © 2011 Wiley‐Liss, Inc.

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