1. A computerized method of adapting a presentation of ultrasonographic images during an ultrasonographic fetal evaluation, comprising: performing an analysis of a plurality of ultrasonographic images captured by an ultrasonographic probe during an evaluation of a fetus; automatically identifying a plurality of locations of a plurality of anatomical landmarks of at least one reference organ or tissue or body fluid of said fetus in said plurality of ultrasonographic images based on an outcome of said analysis; automatically and indirectly localizing a region of interest (ROI), different than said plurality of anatomical landmarks, in at least some of said plurality of ultrasonographic images by: calculating for each of said plurality of anatomical landmarks, a plurality of consecutive contour lines encircling said each of said plurality of anatomical landmarks in a predefined plurality of different distances from a contour of said each of said plurality of anatomical landmarks, selecting for each of said plurality of anatomical landmarks, at least one contour line which is at least one of said plurality of consecutive contour lines according to a pre-determined distance, defining a region bound by intersections of said selected contour lines of said plurality of anatomical landmarks and determining said defined bound region as containing said region of interest (ROI); and concealing said bound region in a presentation of said at least some ultrasonographic images during said evaluation; wherein said plurality of anatomical landmarks are imaged in said presentation and not concealed by said ROI.