Abstract #1259

High resolution T 1 -mapping in human wrist cartilage with a SAR and SENSE optimized coil at 7T

Mark W. J. M. Gosselink ¹ , Joep van Oorschot ¹ , Alexandra de Rotte ¹ , Fredy Visser ¹ , Peter R Luijten ¹ , Mies A Korteweg ² , Hanneke J. J. Bluemink ¹ , and Dennis W. J. Klomp ¹

¹ Radiology, UMC Utrecht, Utrecht, Utrecht, Netherlands, ² Radiology, AMC Amsterdam, Amsterdam, Noord-Holland, Netherlands

The classification of cartilage in the wrist by means of T ₁ MRI requires ultra-high spatial resolutions. While T ₁ sequences coincide with long and strong B1+ fields, we demonstrate that a SAR optimized coil can provide uncompromised T ₁ MRI of the wrist even at 7T. Demonstrated with strong and uniform spin locking fields, combined with 32 channel receivers, quantified 0.5 mm isotropic T ₁ are obtained of cartilage in the wrist.

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