Meeting Banner
Abstract #2453

Influence of electrocardiogram signal triggering on filter exchange imaging

Julian Rauch1,2, Dominik Ludwig1,2, Frederik B. Laun3, and Tristan A. Kuder1
1Division of Medical Physics in Radiology, German Cancer Research Center (DKFZ), Heidelberg, Germany, 2Faculty of Physics and Astronomy, Heidelberg University, Heidelberg, Germany, 3Institute of Radiology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany

Apparent exchange rate (AXR) mapping can be used to non-invasively investigate water exchange between the intra- and extracellular compartment, which might yield insight into cell membrane permeability. To obtain the AXR properly with the filter exchange imaging (FEXI) approach, signal stability is crucial. We show that electrocardiogram (ECG) triggering can lead to a slight improvement of the signal stability for AXR measurements in the human brain. However, pulsation-induced fluctuations are not the main source of signal variations. Thus, it remains questionable if investing additional measurement time in triggering is justified.

This abstract and the presentation materials are available to members only; a login is required.

Join Here