Percutaneous cryoablation of renal tumors: patient selection, technique, and postprocedural imaging.

Published

Journal Article

Percutaneous cryoablation of renal tumors requires a number of important steps for success and relies heavily on imaging for treatment planning, intraprocedural guidance and monitoring, detection of untreated tumor, and surveillance for disease progression. Imaging-guided percutaneous cryoablation has several advantages over laparoscopic cryoablation. In particular, computed tomography (CT) and magnetic resonance (MR) imaging allow global evaluation of the ablation zone and an accurate depiction of the treatment margin. Ultrasonography allows real-time guidance of probe placement but cannot help depict ice ball formation as accurately as CT or MR imaging. Multiphasic CT or MR imaging should be performed at structured intervals following ablation. Treated tumors are expected to decrease in size over time, and lesion growth and internal or nodular enhancement are suspicious for tumor recurrence or progression. Complications include probe site pain, hematoma, incomplete ablation, and recurrent tumor. Current limitations of percutaneous cryoablation include the inability to control hemorrhage without intraarterial access and a lack of long-term follow-up data. Nevertheless, percutaneous cryoablation is an effective choice for minimally invasive nephron-sparing treatment of renal tumors.

Full Text

Duke Authors

Cited Authors

  • Allen, BC; Remer, EM

Published Date

  • July 2010

Published In

Volume / Issue

  • 30 / 4

Start / End Page

  • 887 - 900

PubMed ID

  • 20631358

Pubmed Central ID

  • 20631358

Electronic International Standard Serial Number (EISSN)

  • 1527-1323

International Standard Serial Number (ISSN)

  • 0271-5333

Digital Object Identifier (DOI)

  • 10.1148/rg.304095134

Language

  • eng