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Artificial ascites and pneumoperitoneum to facilitate thermal ablation of liver tumors: a pictorial essay

Image-guided percutaneous thermal ablation is increasingly utilized in the treatment of hepatic malignancies. Peripherally located hepatic tumors can be difficult to access or located adjacent to critical structures that can be injured. As a result, ablation of peripheral tumors may be avoided or ma...

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Bibliographic Details
Published in:Abdominal radiology (New York) 2017-02, Vol.42 (2), p.620-630
Main Authors: Bhagavatula, Sharath K., Chick, Jeffrey F. B., Chauhan, Nikunj R., Shyn, Paul B.
Format: Article
Language:English
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Summary:Image-guided percutaneous thermal ablation is increasingly utilized in the treatment of hepatic malignancies. Peripherally located hepatic tumors can be difficult to access or located adjacent to critical structures that can be injured. As a result, ablation of peripheral tumors may be avoided or may be performed too cautiously, leading to inadequate ablation coverage. In these cases, separating the tumor from adjacent critical structures can increase the efficacy and safety of procedures. Artificial ascites and artificial pneumoperitoneum are techniques that utilize fluid and gas, respectively, to insulate critical structures from the thermal ablation zone. Induction of artificial ascites and artificial pneumoperitoneum can enable complete ablation of otherwise inaccessible hepatic tumors, improve tumor visualization, minimize unintended thermal injury to surrounding organs, and reduce post-procedural pain. This pictorial essay illustrates and discusses the proper technique and clinical considerations for successful artificial ascites and pneumoperitoneum creation to facilitate safe peripheral hepatic tumor ablation.
ISSN:2366-004X
2366-0058
DOI:10.1007/s00261-016-0910-9