Microwave ablation of large HCC lesions: Added value of CEUS examinations for ablation success control

Pregler, B. and Beyer, L. P. and Wiesinger, I. and Niessen, C. and Jung, E. M. and Stroszczynski, C. and Wiggermann, P. (2016) Microwave ablation of large HCC lesions: Added value of CEUS examinations for ablation success control. CLINICAL HEMORHEOLOGY AND MICROCIRCULATION, 64 (3). pp. 483-489. ISSN 1386-0291, 1875-8622

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Abstract

PURPOSE: To assess the value of dynamic contrast enhanced ultrasound (CEUS) for the detection of residual tumor tissue day 1 after microwave ablation (MWA) of large hepatocellular carcinoma (HCC) compared to MRI. MATERIAL AND METHODS: 30 consecutive patients (5 females, 25 males, mean age 64 years, age range 54-73 years) with an untreated HCC lesion larger than or equal to 3 cm underwent percutaneous MWA between 03/2014 and 04/2016. 1 patient was excluded because of an artificial pacemaker. All remaining 29 patients underwent 3-T MRI with liver-specific contrast agent and CEUS 1 day after ablation to detect residual tumor tissue. The 6-week follow-up including CEUS and MRI was defined as the reference standard. RESULTS: Complete ablation was achieved in 23 of 29 treated lesions (79%). The sensitivities and specificities for the detection of residual tumor tissue on day 1 were 100% and 83% for CEUS and 87% and 67% for MRI resp. without the differences being statistically significant. CONCLUSION: CEUS allows a reliable assessment of therapeutic success of percutaneous ablation of large HCC lesions one day after the ablation. Its ability to visualize reactive periablation perfusion changes in real-time might be of advantage in the depiction of residual tumor tissue when compared to MRI imaging alone.

Item Type: Article
Uncontrolled Keywords: HEPATOCELLULAR-CARCINOMA; RADIOFREQUENCY ABLATION; CIRRHOSIS; SPECTRUM; LIVER; Contrast-enhanced ultrasound (CEUS); microwave ablation (MWA); hepatocellular carcinoma (HCC); imaging findings
Subjects: 600 Technology > 610 Medical sciences Medicine
Divisions: Medicine > Lehrstuhl für Röntgendiagnostik
Depositing User: Dr. Gernot Deinzer
Date Deposited: 01 Mar 2019 12:36
Last Modified: 11 Mar 2019 09:40
URI: https://pred.uni-regensburg.de/id/eprint/2252

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