1794
Evaluation of different References for the Quantification of Tissue Sodium Concentration in Patients with ischemic Stroke
Anne Adlung1, Sherif Mohamed2, Nadia Karina Paschke1, Mara Berger1, Melina Samartzi3, Marc Fatar3, Achim Gass4, Eva Neumaier Probst2, and Lothar Rudi Schad1
1Computer Assisted Clinical Medicine, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany, 2Department of Neuroradiology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany, 3Department of Neurology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany, 4Heidelberg University, Mannheim, Germany
Aim was to evaluate the reliability of internal vs. external references for quantification of tissue sodium concentration. 49 patients with ischemic stroke were examined. Results indicated high similarity between both reference types.
Figure 2: One representative 23Na MRi slice from one patient with the ROI segmentation for the different quantification methods A: vials, B: CSF, and C: VH.
Figure 3: Top row: TSC map from 23Na MRI of one patient and one exemplary slice with quantification based on A: reference vials, B: cerebral spinal fluid, C: vitreous humor. Bottom row: corresponding error maps of D: absolute TSC difference between A and B and E: absolute TSC difference between A and C