CT-guided navigated microwave ablation (MWA) of an unfavorable located breast cancer metastasis in liver segment I
Tim Fischer, Anja Lachenmayer & Martin Helmut Maurer
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abstract
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For percutaneous minimally-invasive local ablation therapies of
malignant lesions within the liver computed tomography (CT)
fluoroscopy or ultrasound (US) can be applied for the positioning of
ablation probes. However, lesions in liver segment I and in the
upper part of liver segment VIII are difficult to reach with CT
fluoroscopy and US guidance even for experienced interventionalists
as steep and transcostal access paths may be needed. In addition,
there is always the risk to lacerate crucial vessels near the liver
hilus. We report on the use of a CT-based stereotactic navigation
system (CAS-One, CAScination AG, Bern, Switzerland) for the precise
positioning of the ablation probe to perform a percutaneous
stereotactic image-guided microwave ablation of a breast cancer
liver metastasis in liver segment I that was unreachable with
conventional CT or US guidance. Based on the initial planning scan
and image-to-patient registration a precise positioning of the probe
was possible sparing vital structures like the directly adjacent
vulnerable vessels. The ablation was performed without complications
fully covering the metastatic lesion with the ablation zone. To this
day, there was no recurring tumor 18 months after the intervention.
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citation
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Fischer T, Lachenmayer A, Maurer M H. CT-guided navigated microwave
ablation (MWA) of an unfavorable located breast cancer metastasis in
liver segment I. Radiol Case Rep 2018; 14:146-150.
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type
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journal paper/review (English)
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date of publishing
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30-10-2018
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journal title
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Radiol Case Rep (14/2)
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ISSN print
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1930-0433
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pages
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146-150
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PubMed
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30405865
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DOI
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10.1016/j.radcr.2018.10.010
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