Abstract
Cryosurgery, the use of freezing to destroy undesirable tissue, has experienced significant advances in the last decade, which have brought to a precipitous growth of this field in the United States. During the last two years over one hundred hospitals have introduced the use of cryosurgery for the treatment of liver and prostate cancer. This paper will present a review of advances in the areas of imaging frozen tissue with ultrasound and magnetic resonance and in the understanding of the biophysics of freezing in tissue.