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"How we do it" - a practical approach to hepatic metastases ablation techniques
Constantinos T Sofocleous1, Panagiotis Sideras, Elena N Petre
1Department of Interventional Radiology, Memorial Sloan-Kettering Cancer Center, New York, NY.
Techniques in Vascular and Interventional Radiology
|November 19, 2013
Summary
Image-guided ablation offers a safe and effective minimally invasive treatment for select patients with limited hepatic metastases. This approach is evolving, providing new options for managing secondary liver malignancies.
Area of Science:
- Interventional Oncology
- Hepatobiliary Malignancies
Background:
- Secondary liver malignancies, particularly from colorectal cancer, significantly increase mortality and morbidity.
- A multidisciplinary approach is crucial for managing hepatic metastases, involving medical, surgical, radiation, and interventional oncology.
Purpose of the Study:
- To review various liver ablation techniques for hepatic metastases.
- To discuss indications, patient preparation, and procedural "tricks of the trade" for safe and effective ablation.
- To outline imaging, follow-up protocols, and potential complications associated with liver tumor ablation.
Main Methods:
- Percutaneous image-guided ablation techniques including thermal (radiofrequency, microwave, laser) and nonthermal (irreversible electroporation) modalities.
- Cryoablation as another method for inducing cell death via freezing.
- Review of existing literature and clinical practices for liver tumor ablation.
Main Results:
- Image-guided ablation is effective and safe for selected patients with limited, small hepatic metastases (up to 4 lesions, <5cm).
- Various ablation modalities achieve tumor destruction through thermal or nonthermal mechanisms.
- The role of interventional oncology in managing hepatic malignancies is expanding across a spectrum of disease.
Conclusions:
- Minimally invasive image-guided ablation is a valuable tool in the multidisciplinary management of hepatic metastases.
- Continued evolution of ablation techniques offers expanded treatment options for liver tumors.
- Careful patient selection, procedural technique, and follow-up are essential for optimal outcomes.
