- Poster presentation
- Open Access
High-permittivity thin dielectric pad improves peripheral non-contrast MRA at 3T
© Lindley et al.; licensee BioMed Central Ltd. 2014
- Published: 16 January 2014
- Femoral Artery
- Magnetic Resonance Angiography
- Peripheral Vascular Disease
- Common Femoral Artery
- Barium Titanate
Non-contrast magnetic resonance angiography (NC-MRA) is an alternative diagnostic tool for assessment of peripheral vascular disease in patients with impaired kidney function. While peripheral NC-MRA based on subtraction of two turbo-spin-echo acquisitions may benefit from increased signal-to-noise ratio (SNR) at 3T, it also suffers from signal loss in the right femoral artery due to B1 inhomogeneities, which can be minimized using high-permittivity dielectric pads. The purpose of this study was to utilize high-permittivity dielectric pad to reduce NC-MRA signal loss associated with B1 inhomogeneity.
Our study shows that NC-MRA signal loss in the right common femoral artery at 3T can be minimized through the use of high-permittivity dielectric pad. This B1 correction allows for the signal loss from the inhomogeneities to be corrected and the common femoral artery to be seen in NC-MRA images.
NIH (5R01 HL092439) and Ben B. and Iris M. Margolis Foundation.
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