Radiation therapy for liver metastases.

Area of Science:

• Oncology
• Radiation Oncology
• Medical Physics

Background:

• Liver metastases are a significant cause of cancer morbidity and mortality.
• Technological advancements have renewed interest in radiation therapy (RT) for liver tumors.
• 3-dimensional conformal radiation treatment (CRT) and stereotactic body radiation therapy (SBRT) represent key innovations.

Purpose of the Study:

• To review the advancements and current applications of RT for liver metastases.
• To highlight the efficacy and safety of CRT and SBRT in managing liver tumors.
• To identify patient selection criteria for optimal RT outcomes.

Main Methods:

• Review of clinical experience with CRT and SBRT for liver metastases over the past decade.
• Analysis of local control rates and toxicity profiles associated with these RT techniques.
• Identification of patient characteristics predictive of successful RT treatment.

Main Results:

• CRT and SBRT have demonstrated very high local control rates in selected patients.
• These advanced RT modalities exhibit minimal toxicity when applied appropriately.
• Optimal candidates for RT have liver-confined disease, focal metastases, and adequate margins from gastrointestinal organs.

Conclusions:

• CRT and SBRT are effective and safe treatment options for liver metastases.
• Patient selection is crucial for maximizing the benefits of RT.
• Aggressive local therapies like RT may improve overall outcomes when used adjunctively with systemic therapy.