Ultrasound monitored hepatic cryosurgery: longevity study on an animal model.
Ultrasound imaging has been proposed to monitor the amount of frozen tissue during hepatic cryosurgery of primary and metastatic tumors. In this follow-up study, a cryolesion was produced in an adult pig under ultrasound monitoring. The animal was allowed to recuperate for 3 days before being sacrificed. Pathologic and histologic evaluation showed extremely close correlation with the ultrasound image. The necrotic region was clearly observable in the sonogram after 3 days. Ultrasonography can accurately represent the extent of the cryolesion both during as well as following cryosurgery.
D000818:Animals; D003452:Cryosurgery / Q000379:methods*; D004195:Disease Models, Animal; D004285:Dogs; D008099:Liver / Q000473:pathology / Q000601:surgery*; D008136:Longevity; D009336:Necrosis; D013552:Swine; D014463:Ultrasonography