Ultrasound imaging apparatus

An ultrasound imaging system for determining ultrasound image data from an object, comprising:

• an ultrasound probe for acquiring ultrasound data from the object, and
• an ultrasound imaging apparatus comprising:
• a data interface configured to receive ultrasound data within a field of view and resulting from an ultrasound scan of an object,
• a segmentation unit for segmenting anatomical structures of the object in the ultrasound data and arranged to provide segmentation data of the anatomical structures,
• a reference determining unit adapted to determine a spatial orientation of the anatomical object in the field of view for the ultrasound data on the basis of the segmentation data, and
• a confidence determining unit arranged to determine confidence values for different regions of the received ultrasound data on the basis of the spatial orientation of the anatomical object in the field of view and a propagation model of the ultrasound waves within said anatomical object;
• and
• a display for displaying the confidence values in an ultrasound image.