Donghoon Lee1, Kenneth Marro1, Eric Shankland1, Mark Mathis1, Timothy Wilbur1, Gregory Wilson1,2, Jeff Stevenson1, Cecil Hayes1, Kenneth Maravilla1
1University of Washington,
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.