Quadrature coil design for high-resolution carotid artery imaging scores better than a dual phased-array coil design with the same volume coverage
✍ Scribed by Mohamed Ouhlous; Adriaan Moelker; Herman J. Flick; Piotr A. Wielopolski; Thomas T. de Weert; Peter M.T. Pattynama; Aad van der Lugt
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 503 KB
- Volume
- 25
- Category
- Article
- ISSN
- 1053-1807
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Purpose
To evaluate the ability of a custom‐built coil design to provide improved signal‐to‐noise ratio (SNR) and less signal drop with increasing depth at the carotid artery.
Materials and Methods
Phased‐array surface coils can provide a high SNR to image the carotid vessel wall. However, given the required field‐of‐view (FOV) and penetration depth, these coils show either a fast signal drop with increasing depth or a moderate SNR at increased coil size. A quadrature surface coil (a butterfly coil in conjunction with a linear single‐loop coil) was compared with a phased‐array coil in phantom and human studies.
Results
The phantom studies showed that the quadrature coil has better SNR over the required FOV than a standard phased‐array coil (26% at 3 cm depth).
Conclusion
The quadrature coil enables better image quality to be achieved. J. Magn. Reson. Imaging 2007. © 2007 Wiley‐Liss, Inc.