MR-guided microwave ablation of liver tumors: outcomes in local tumor control and determinants of treatment success

Category	Detail
Condition	Hepatic Tumors
Key Mechanisms	Minimally invasive thermal ablation using microwave technology for local tumor control.
Target Population	Patients with primary and secondary liver malignancies.
Care Setting	Interventional radiology with MR guidance.

Microwave ablation (MWA) offers higher intratumoral temperatures and larger ablation volumes compared to radiofrequency ablation.
MR imaging provides superior soft tissue contrast for accurate lesion localization and monitoring.
Technical success rate of 95.8% was achieved with MR-guided MWA.
Factors influencing treatment success include lesion size, type, and proximity to vascular structures.
Complications were minimal, with only 2.5% experiencing postprocedural issues.

MR thermometry should be utilized for continuous temperature monitoring during ablation.

Potential complications include bleeding and pleural effusion, though these are rare.

40 patients with a median age of 62.5 years, predominantly male.

Prior treatments were common, with 65% having received systemic therapy or other local ablative therapies.

Utilize MR imaging for precise targeting and monitoring during MWA.
Ensure adequate safety margins from adjacent vascular structures during ablation.
Conduct follow-up imaging to assess local tumor control post-ablation.

Clinical Scorecard: Microwave Ablation of Hepatic Tumors Under MR Guidance: Efficacy in Local Control and Factors Influencing Treatment Success