Real-time temperature correction of the relaxation parameters in in situ post-mortem neuro MRI
Celine Berger1,2, Melanie Bauer1,2, Eva Scheurer1,2, and Claudia Lenz1,2
1Institute of Forensic Medicine, Department of Biomedical Engineering, Basel, Switzerland, 2Institute of Forensic Medicine, Health Department Basel-Stadt, Basel, Switzerland
The observed significant linear relations between the forehead temperature and the relaxation times indicate that this real-time non-invasive temperature correction method is suitable for in situ post mortem MR neuroimaging.
Figure 2: Temperature dependence of T1, T2, T2 using the forehead temperature measured in real time during the MRI measurement. Each parameter was differentiated for gray (gray triangles) and white (black circles) matter structures.
Table 1: Fitted linear model (y=a+bx) for T1 and T2 brain and forehead temperature, respectively, each differentiated for gray matter (GM) and white matter (WM). Further, the corresponding goodness of fit values, the correlation coefficient r, the root mean squared error (RMSE), and the p-value are listed.