Perfusion imaging

摘要

A method includes determining a plausibility of one or more perfusion parameter maps generated based on perfusion image data and correcting at least one of the perfusion parameter maps when the plausibility for the at least one perfusion parameter map does not satisfy pre-set perfusion parameter plausibility criteria.

主权项

1. A method, wherein the perfusion parameter map is a CBV parameter map, and further including:
determining a plausibility of one or more perfusion parameter maps generated based on perfusion image data; correcting at least one of the perfusion parameter maps when the plausibility for the at least one perfusion parameter map does not satisfy pre-set perfusion parameter plausibility criteria; obtaining temporal MIP (tMIP) image data; creating a vessel mask based on a default pre-set mask threshold; generating masked tMIP image data based on the tMIP image data and the mask; determining a feature value of the masked image; comparing the feature value with a pre-set CBV threshold; and validating the CBV parameter map only when the feature value is less than the pre-set CBV threshold.