Loading patent…
AssigneeForschungszentrum Julich GmbH
InventorsDaniel Gembris, Stefan Posse, John Taylor
Estimating the term…
In a computer for evaluating signals from nuclear magnetic resonance tomography and a tomograph using such a computer, the neuronal activity measured during a nuclear magnetic resonance tomographic examination follows a protocol, which reproduces the temporal sequence of stimuli. During a correlation analysis, the sensitivity of known means to changes in the signal-response form normally decreases with each activation cycle. According to the invention, better evaluation results can be achieved in the correlation analysis by using a constant number of n data values in a correlation analysis employing a sliding-window technique. As the data measurement progresses, the oldest value is continuously disposed of and the most recent data value utilized in the calculation.
A computer for the evaluation of data from nuclear spin tomographs employing a correlation analysis which is performed utilizing a detrending procedure, said computer including evaluation means, which, in accordance with a sliding-window procedure, utilize a number of n data values for said correlation analysis, in which, with continuing data measurement, the respective oldest values are discarded and the newest data values are employed in the computation.
A nuclear resonance tomograph including a computer for the evaluation of data from nuclear spin tomographs wherein a correlation analysis is performed utilizing a detrending procedure, said computer including evaluation means, which, in accordance with a sliding-window procedure, utilize a number of n data values for said correlation analysis, in which, with continuing data measurement, the respective oldest data values are discarded and the newest data values are employed in the computation.
Dependencies are inferred from the claim text.