Fully automatic liver scan planning - slice and navigator positioning from stacked 2D localizer scans
Fenchel M, Thesen S, Schilling A
Siemens Medical Solutions, Eberhard-Karls-University
We present a method for fast and fully automatic positioning of slices and navigators for MR liver examinations. First, a statistical model of the liver is generated from a data pool of scanned livers of probands. Once this model has been generated, we are able to register it to a set of localizer slices from the scanner, maximizing a chosen correlation metric between model and localizers. From the final parameters of the registration process, we easily obtain the geometric information needed to position the slices and the navigator ROI for an examination.