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Abstract #4059

A flexible five-channel shielded-coaxial-cable transceive neck coil for high resolution carotid imaging at 7T

Irena Zivkovic1, Thomas Ruytenberg1, and Andrew Webb1
1Radiology Department, Leiden University Medical Center, Leiden, Netherlands

Imaging the carotid arteries at 7T requires a multichannel array which allows B1-shimming and conforms to different neck sizes. The major challenge is to minimise coupling between closely-spaced coils and to make the coupling relatively insensitive to loading conditions. We have designed a five channel transceive array composed of shielded-coaxial-cable coils placed on the anterior part of the neck and conforming to the anatomy. Coil flexibility has been demonstrated by imaging subjects with different neck circumferences. In vivo black-blood images were acquired with very high in-plane spatial resolution (0.25 x 0.25 mm2) with clear depiction of the vessel walls.

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