1. A method for producing a perspective view of a volumetric region of the body from a plurality of spatially related planar ultrasonic sector images comprising the steps of: receiving a plurality of spatially related ultrasonic sector images from said volumetric region; identifying the angle of said perspective view in relation to a reference plane; processing each image by a) scaling one or more of the dimensions of said image in proportion to said perspective viewing angle, and b) translating the image in the plane of the image in proportion to the spacing between said spatially related planes and said perspective viewing angle; combining said processed images to form a composite perspective view image; and displaying said perspective view image.