Predicting Liver Ablation Volumes with MRI Thermometry
Author Information
Author(s): Öcal Osman, Dietrich Olaf, Lentini Sergio, Bour Pierre, Faller Thibaut, Ozenne Valery, Maier Florian, Fabritius Matthias Philipp, Puhr-Westerheide Daniel, Schmidt Vanessa F., Öcal Elif, Seidensticker Ricarda, Wildgruber Moritz, Ricke Jens, Seidensticker Max
Primary Institution: Department of Radiology, University Hospital, LMU Munich, Munich, Germany
Hypothesis
This study aims to evaluate the correlation of real-time MR thermometry-predicted lesion volume with the ablation zone in postprocedural first-day images.
Conclusion
Real-time thermal dose-predicted volumes show very good correlation with the ablation zone volumes in images obtained 1 day after the procedure.
Supporting Evidence
- Out of 30 patients with 33 lesions, 24 patients with 27 lesions were evaluated for volume correlation.
- The volume of thermal dose-predicted lesions and the postprocedural first-day ablation zones showed a strong correlation (R = 0.89).
- Visual similarity of MR thermometry-predicted shape and the ablation zone shape was graded as perfect in 85.1% of lesions.
Takeaway
Doctors used special MRI technology to see how well they treated liver tumors right after the procedure, helping them know if they did a good job.
Methodology
This was a single-center retrospective analysis of patients who underwent MRI-guided microwave ablation with real-time thermometry.
Limitations
Some lesions were excluded due to artifacts and other procedural issues, which may affect the generalizability of the results.
Participant Demographics
24 patients (20 males, 4 females; mean age 63.1 years) with various types of liver tumors.
Statistical Information
P-Value
<0.001
Confidence Interval
95% CI, 0.778–0.950
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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