Imaging appearances following thermal ablation.

Area of Science:

• Interventional Radiology
• Oncology Imaging
• Medical Imaging

Background:

• Radiofrequency ablation (RFA) is a significant treatment modality for various solid tumors.
• RFA procedures are often performed at specialized centers, leading to a geographically diverse patient population.
• Post-treatment imaging follow-up is frequently conducted at referring institutions, necessitating broad radiologist expertise.

Purpose of the Study:

• To provide a comprehensive overview of normal and abnormal imaging findings following RFA.
• To focus on commonly treated organs: liver, lung, and kidney.
• To enhance radiologists' confidence in interpreting post-ablation imaging in a diverse patient cohort.

Main Methods:

• Literature review of RFA techniques and outcomes.
• Compilation of imaging examples from common RFA procedures.
• Categorization of findings into normal and abnormal post-ablative appearances.

Main Results:

• Detailed descriptions and illustrations of expected imaging results after RFA in the liver, lung, and kidney.
• Identification of potential complications and expected healing patterns.
• Highlighting key imaging features that differentiate expected changes from adverse events.

Conclusions:

• Accurate interpretation of post-RFA imaging is crucial for effective patient management.
• Radiologists require specific knowledge of expected post-ablation changes in treated organs.
• This review serves as a resource to improve diagnostic accuracy in follow-up imaging after RFA.