Ultrasound system for interventional treatment

An ultrasound system includes an ultrasound diagnostic unit for transmitting ultrasound signals to a target object and producing ultrasound image signals; a wide-area image signal providing unit for providing wide-area image signals for a relatively wide area; an image processor for forming a reconstruction image by combining an ultrasound image and a wide-area image based on the ultrasound image signals and the wide-area image signals; a user interface for selecting at least one lesion in the target object and at least one medical needle insertion point by a user; a path setting unit for setting at least one medical needle insertion path based on the lesion and the medical needle insertion point; and a display unit for displaying the reconstruction image showing positions of the lesion and the medical needle insertion point and the medical needle insertion path, the display unit further being configured to display the ultrasound image.