Variability of Microwave Ablation Volume Based on Clinical, Radiological, Biological, and Tissue Factors
Recruiting now
Conditions studied: Liver Neoplasm
In brief
Microwave ablation is a minimally invasive technique whose planning relies on manufacturer tables derived from ex vivo models that do not account for patient or tumor-specific factors. In clinical practice, the actual ablation volume often differs from the planned volume due to liver characteristics, vascular proximity, and tumor biology. This study aims to assess the variability between ablation small axis during percutaneous microwave ablation of liver lesions. The influence of patient-related (fibrosis, steatosis, portal flow) and tumor-related factors (location, histology, prior treatment) will be evaluated. Small axis and volume will be compared with volumes measured on immediate post-procedural CT and on CT/MRI at 6-12 weeks, accounting for expected tissue shrinkage.
Key facts
- Study ID
- NCT07413640
- Run by
- Central Hospital, Nancy, France
- People needed
- 90
- Starts
- 2026-02-02
- Expected to finish
- 2026-07-01
- Last updated by the study team
- 2026-02-25
Who can join
Age: 18 and older, up to 100. Sex: any. Healthy volunteers: not accepted.
You may qualify if…
- Adult patients
- Treated with percutaneous hepatic microwave ablation under CT or ultrasound guidance
- Adult treated for one or more liver lesions
- Patients with available follow-up imaging
You may not qualify if…
- Two treatment cycles on the same lesion during the same session.
- Reoperation on the same lesion.
- Planned volume not available (no manufacturer data, not specified in the surgical report).
- No control imaging injected between 1 and 4 months post-procedure.
- Final ablation volume not measurable (e.g., artifacts, no injection on MRI).
- No definitive diagnosis of the nature of the tumor on imaging and no histology available.
Where it is running
- CHRU Nancy — Vandœuvre-lès-Nancy, France (enrolling)
Full record on ClinicalTrials.gov
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