Meeting Banner
Abstract #0457

7T MRSI in Temporal Lobe Epilepsy

David Bonekamp1, He Zhu1, Gregory Bergey2, Peter B. Barker1

1The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University, Baltimore, MD, United States; 2Department of Neurology, Johns Hopkins University, Baltimore, MD, United States

In this study, control subjects and a cohort of epilepsy patients with a clinical diagnosis of unilateral epilepsy underwent MRSI at 7T. Similar to prior studies at lower fields, 7T MRSI of the hippocampi showed bilateral mid-hippocampal tNAA decreases, accentuated at the side of clinical and MRI abnormality. Lateralization of the clinical focus was not possible, due to significant contralateral tNAA decrease. Future comparative studies are needed to compare the relative value of 7T vs. 3T MRSI, as well as the relative value of 7T MRSI to other MRI sequences, in patients with temporal lobe epilepsy.

Keywords

abnormal abnormality acceleration accentuated according accurate affected affecting anterior approval assessment asymmetry audience axis barker benefits bilateral board body bound brain channel chemical circular clinical clinicians coil common comparative concentrations consent consider control controls cortical decrease decreased decreases demonstrating detection diagnosis disorder epilepsy error evidence examined exams excluded experiment fewer field fields findings focus funding future head healthy helpful improved included index individual informed institutional involvement johns larger lateralization lobe locations long mapping matrix medical metabolite metabolites middle minutes necessary needed neurology nine nominal nonparametric nova options parallel part patients peter population posterior prior propagation protocol quality quantification radiological radiology rank reduction reductions refractory relatively review sampling scanned science sciences sclerosis seizure selected sense separate side significantly site slice slightly software somewhat space spectra spectroscopic spectroscopy statistics steam stratified strength strengths studies subjects successful suggest suppl supported suppression surgical target temporal therapy treatment unaffected underwent unilateral vapor variability visual volunteers water