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Abstract #1400

Simple Implementation of an Inductively Coupled Synthetic Signal Injection Method on a Clinical MR Scanner for Absolute Quantification

Donghoon Lee1, Kenneth Marro1, Eric Shankland1, Mark Mathis1, Timothy Wilbur1, Gregory Wilson1,2, Jeff Stevenson1, Cecil Hayes1, Kenneth Maravilla1

1University of Washington, Seattle, WA, United States; 2MR Clinical Science, Philips Healthcare, Cleveland, OH, United States

We report a simple way to implement an artificial signal injection method for absolute quantification on a clinical MR scanner. All injector RF components were placed in a shielded box that was isolated from the MR scanner circuitry so no hardware/software modifications were required for the implementation. We used the implemented injection device to acquire in vivo human muscle 31P MRS with a pseudo-signal acquired simultaneously. This approach is easy to implement with low cost hardware, making it attractive to a broad range of clinical and research MR sites.