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.
Original language | English (US) |
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Pages (from-to) | 150-156 |
Number of pages | 7 |
Journal | Journal of Magnetic Resonance Imaging |
Volume | 34 |
Issue number | 1 |
DOIs | |
State | Published - Jul 2011 |
Keywords
- femoral arteries
- peripheral arterial occlusive disease
- peripheral arteries
- RF coil array
- vessel wall imaging
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging