1. An ultrasound imaging system comprising: an ultrasound probe which has an ultrasound transducer; said ultrasound probe has a means for causing the ultrasound transducer to take two-dimensional images in multiple planes which extend in outwardly directions from said ultrasound transducer; means for associating in real time said two-dimensional images into a combined image; and said associating means includes a console and a display which depicts said two-dimensional images as a combined image of side by side two-dimensional images so as to allow simultaneous viewing through the two-dimensional images from a direction which is across said two-dimensional images.