Abstract #2846

Preservation of Deep Gray Nuclear Tissue Contrast and Utility of Thalamus as an Internal Standard in Inversion Recovery MR Images at High and Low RF Power in Parkinsons Patients Treated with Deep Brain Neurostimulators

Subhendra Sarkar¹, Ron Alterman², Rafael Rojas¹, Douglas Teich¹, Jeremy Stormann¹, Ines Cabral-Goncalves¹, David Hackney¹, Efstathios Papavassiliou²

¹Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, BOSTON, MA, United States; ²Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, BOSTON, MA, United States

We have used a low-SAR modification to FSEIR sequence and proposed Thalamus as an internal standard to test tissue contrasts and borders of deep brain nuclei in Parkinson's Disease for neurostimulator implantation. With high quality at low-SAR this approach may offer direct MR usage and reduce the dependency on microelectrode recording during DBS surgery.