AI Article Synopsis
- The study aimed to evaluate MRI performance right after microwave ablation (MWA) treatment for lung cancers, focusing on the ablation zone's characteristics.
- Researchers analyzed MRI data from 34 lung cancer cases following MWA, measuring the ablation zone size and comparing results from plain CT and different MRI imaging techniques.
- Findings indicated that MRI is effective in assessing treatment success post-MWA, with T1-weighted and T2-weighted images showing better estimates of the ablation area and safety margins compared to CT results.
Article Abstract
Purpose: To investigate the imaging performance and parametric analysis of magnetic resonance imaging (MRI) immediately after microwave ablation (MWA) of lung malignancies.
Materials And Methods: We retrospectively analyzed the MRI performance immediately after MWA of 34 cases of lung malignancies. The ablation zone parameters of lung malignancies were measured, including the long diameter (L), short diameter (S), and safety margin of the ablation zone on plain computed tomography (CT), T1-weighted imaging (T1WI), and T2-weighted imaging (T2WI) after MWA. The study calculated the tumor volume (V 0 ), the ablation zone volume (V 1 ), and the ratio of V 0 to V 1 (V%). Statistical differences between the parameters were analyzed.
Results: The ablation area of the lesion exhibited central low signal and peripheral high signal on T2WI, central high signal and peripheral equal or high signal on T1WI, and circumferential enhancement in the periphery. The safety margin measured on T2WI was greater than that measured on plain CT and T1WI. On plain CT, the L, S, and V 1 were smaller in the effective treatment group than in the ineffective treatment group ( P <0.05). On T1WI, the V% and safety margin were greater in the effective treatment group than in the ineffective treatment group ( P =0.009 and P =0.016, respectively).
Conclusions: MRI may be a new, valuable method to assess immediate efficacy after MWA for lung malignancies using the ablation zone parameters V% on T1WI and safety margin on T2WI.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11495527 | PMC |
| http://dx.doi.org/10.1097/RTI.0000000000000797 | DOI Listing |
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