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• TITLE: Fusion Navigation Technique for Management of Difficult to Access Hepatocellular Carcinoma: A Single Center Experience

  AUTHORS: Ahmed M. El Nakib, Sahar Zakria, Mohamed Hassany, Mahmoud El-Bendary

  KEYWORDS: Fusion Navigation, Hepatocellular Carcinoma, Radiofrequency Ablation

  JOURNAL NAME: Open Journal of Gastroenterology, Vol.10 No.12, December 24, 2020

  ABSTRACT: Introduction: Sonography is the most universally used imaging technique for planning and performing thermal ablation in Hepatocellular carcinoma patients due to its efficiency and safety. However, the presence of HCC nodules that are hardly visible on traditional sonography is a major drawback to its use during thermal ablation. Real-time image fusion (fusion imaging) or real-time virtual sonography is a new technology that has been developed. Aim: To determine the value of fusion/navigation guided percutaneous thermal ablation in the management of hepatocellular carcinoma that has poor conspicuity at conventional sonography. Subjects and Methods: This study included 70 HCC patients (BCLC A and B). Percutaneous radiofrequency ablation was done via real-time image fusion for 14 patients with poorly visible HCC nodules (study group), while Percutaneous radiofrequency ablation was done via traditional sonography for 56 patients with HCC nodules (control group). Results: The median time to reach the tumor was significantly shorter by using fusion navigation technique (P = 0.034). By using fusion navigation technique 92% of the lesions were completely ablated while 55% only were completely ablated by using ultrasonography (P = 0.014). One year after the procedure , by using fusion navigation technique 92% of the patients had complete response and only 55% of the patients had complete response by using conventional ultrasonography (P = 0.011). The survival distributions for both interventions were statistically significantly different, χ2 = 10.12, P = 0.001. Conclusion: Fusion imaging-guided percutaneous RFA is a reasonable and efficient treatment of patients with HCC undetectable by traditional ultrasonography.