A method for volume scanning both hard tissues and soft tissues of a patient.An impression of a materialvisible in a volume scan is used. A volume scan is generated in which hardtissue is visible and theimpression is visible, and soft tissue is "visible" as the space between thevisible hard tissue and thevisible impression. The results of generating the volume scan are provided forthe purpose ofmanufacturing or fabricating a custom surgical stent having at least onesurgical guide for guidingplacement of an ablation probe tip. A typical X-ray scan only shows hardtissue; accordingly, to obtainboth soft and hard tissue information using simultaneous three-dimensionalscanning, a dentalimpression is used that can be viewed on an X-ray.