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MRI-Guided RF Ablation in the Kidney

  • Sherif G. Nour
  • Jonathan S. Lewin
Part of the Medical Radiology book series (MEDRAD)

Abstract

Percutaneous thermal ablation has become a viable option for locoregional control of cancer. In contrast to its role in most applications, thermal ablation in the kidney typically targets localized primary tumors with the aim of complete treatment. Radiofrequency ablation and cryoablation are the most commonly used thermal energy techniques for this purpose. The use of MRI to guide and monitor these ablation procedures is associated with a considerably more refined technique primarily owing to the ability of MRI to monitor the thermal effects of tissue heating as they occur. As such, MRI permits a tailored approach to treatment based on the actual visualization of individual tumor response. This represents a fundamental difference from performing these procedures under CT or ultrasound guidance when the implemented treatment paradigm follows a predetermined recipe based on experience collected during the treatment of similar tumors. In this chapter, a discussion of the rationale of image guidance during ablation is provided with a special emphasis on the added value of the use of MRI during both the guidance and the monitoring phases of treatment. The interventional MRI suite setup and equipment are explained, followed by a detailed practical approach to the ablation procedure under MRI. The cellular bases of MRI findings on follow-up imaging are then elucidated, and the chapter is concluded by a discussion of various safety measures to be followed during MRI-guided radiofrequency ablation procedures.

Keywords

Renal Cell Carcinoma Ablation Procedure Thermal Ablation Ablation Zone Large Ablation Zone 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  1. 1.Divisions of Abdominal Imaging, Department of Radiology and Imaging Sciences, Interventional Radiology, and Image-Guided Medicine Emory University Hospitals and School of MedicineAtlantaUSA
  2. 2.Russell H. Morgan Department of Radiology and Radiological ScienceJohns Hopkins School of Medicine, The Johns Hopkins HospitalBaltimoreUSA

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