A method displays, in response to a user selection of a first viewing mode, an ultrasound image in grayscale and determines a region of interest within the displayed grayscale ultrasound image. In response to an operator instruction to switch to a second viewing mode that is different from the first viewing mode, a modified ultrasound image is generated comprising the region of interest. The method displays the modified ultrasound image including the region of interest, wherein one or more portions of the modified image are highlighted.
