Peer-reviewed veterinary case report
3D ultrasound vs MRI for microwave spleen treatment in dogs
By Sheng, Lin et al.·Published in International journal of computer assisted radiology and surgery·2015·Department of Interventional Ultrasound, China·View original on PubMed →
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Original publication title: Comparison of 3D ultrasound and magnetic resonance imaging for microwave ablation in the canine splenomegaly model.
- Species:
- dog
Plain-English summary
A group of 13 dogs with enlarged spleens (congestive splenomegaly) underwent microwave ablation, a treatment to reduce spleen size. The procedure was guided by either 3D ultrasound or magnetic resonance imaging (MRI) to assess the treatment area. While MRI provided slightly better accuracy in measuring the ablation zone, both imaging methods showed similar results in the size of the treated area immediately after and weeks later. This suggests that 3D ultrasound could be a useful alternative to MRI for monitoring this treatment in dogs.
People also search for: dog spleen surgery · microwave ablation for dog splenomegaly · 3D ultrasound vs MRI for dogs
Abstract
PURPOSE: Microwave ablation is used for the treatment of hypersplenism. Image guidance and ablation volume assessment is important to ensure that the ablation is successful. The accuracy of 3D ultrasound (US) and magnetic resonance imaging (MRI) in determining the parameters for microwave ablation were compared in a canine splenomegaly model. METHODS: Microwave ablation of the spleen was performed on 13 dogs with congestive splenomegaly. Several combinations of power output and ablation time were used: 60 W for 300 s, 50 W for 360 s and 40 W for 450 s. The ablation zone volume was measured by 3D US and 3D MRI immediately after microwave ablation, and at 1, 2 and 8 weeks thereafter. RESULTS: Compared with 3D MRI, the ablation zone reconstruction rate was lower with 3D US (92 vs. 100%). However, there was no significant difference was found in the ablation volume calculated soon after the treatment and 1 week and 2 months later. CONCLUSION: 3D US may be useful for quantifying the volume of microwave ablation zones in the spleens of experimental animals and appears promising as an alterative modality to MRI for clinical examinations.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/24989968/