[1. Tiong LMaddern GJ. Systematic review and meta-analysis of survival and disease recurrence after radiofrequency ablation for hepatocellular carcinoma. Br J Surg 2011; 98: 1210-24.10.1002/bjs.7669]Search in Google Scholar
[2. Fuchs T, Kachelriess MKalender WA. Technical advances in multi-slice spiral CT. Eur J Radiol 2000; 36: 69-73.10.1016/S0720-048X(00)00269-2]Search in Google Scholar
[3. Kudo M. New sonographic techniques for the diagnosis and treatment of hepatocellular carcinoma. Hepatol Res 2007; 37(Suppl 2): S193-9.10.1111/j.1872-034X.2007.00184.x17877482]Search in Google Scholar
[4. Okamoto E, Sato S, Sanchez-Siles AA, Ishine J, Miyake T, Amano Y, et al. Evaluation of virtual CT sonography for enhanced detection of small hepatic nodules: a prospective pilot study. AJR Am J Roentgenol 2010; 194: 1272-8.10.2214/AJR.08.229420410414]Search in Google Scholar
[5. Minami Y, Kudo M, Chung H, Inoue T, Takahashi S, Hatanaka K, et al. Percutaneous radiofrequency ablation of sonographically unidentifiable liver tumors. Feasibility and usefulness of a novel guiding technique with an integrated system of computed tomography and sonographic images. Oncology 2007; 72(Suppl 1): 111-6.10.1159/00011171618087191]Search in Google Scholar
[6. Kitada T, Murakami T, Kuzushita N, Minamitani K, Nakajo K, Osuga K, et al. Effectiveness of real-time virtual sonography-guided radiofrequency ablation treatment for patients with hepatocellular carcinomas. Hepatol Res 2008; 38: 565-71.10.1111/j.1872-034X.2007.00308.x18218008]Search in Google Scholar
[7. Kawasoe H, Eguchi Y, Mizuta T, Yasutake T, Ozaki I, Shimonishi T, et al. Radiofrequency ablation with the real-time virtual sonography system for treating hepatocellular carcinoma difficult to detect by ultrasonography. JClin Biochem Nutr 2007; 40: 66-72.10.3164/jcbn.40.66229150618437215]Search in Google Scholar
[8. Nakai M, Sato M, Sahara S, Takasaka I, Kawai N, Minamiguchi H, et al. Radiofrequency ablation assisted by real-time virtual sonography and CT for hepatocellular carcinoma undetectable by conventional sonography. Cardiovasc Intervent Radiol 2009; 32: 62-9.10.1007/s00270-008-9462-x18987911]Search in Google Scholar
[9. Numata K, Luo W, Morimoto M, Kondo M, Kunishi Y, Sasaki T, et al. Contrast enhanced ultrasound of hepatocellular carcinoma. World J Radiol 2010; 2: 68-82.10.4329/wjr.v2.i2.68299892521160920]Search in Google Scholar
[10. Minami Y, Kudo M, Hatanaka K, Kitai S, Inoue T, Hagiwara S, et al. Radiofrequency ablation guided by contrast harmonic sonography using perfluorocarbon microbubbles (Sonazoid) for hepatic malignancies: an initial experience. Liver Int 2010; 30: 759-64.10.1111/j.1478-3231.2010.02226.x20456042]Search in Google Scholar
[11. Masuzaki R, Shiina S, Tateishi R, Yoshida H, Goto E, Sugioka Y, et al. Utility of contrast-enhanced ultrasonography with Sonazoid in radiofrequency ablation for hepatocellular carcinoma. J Gastroenterol Hepatol 2011; 26: 759-64.10.1111/j.1440-1746.2010.06559.x21054516]Search in Google Scholar
[12. Numata K, Morimoto M, Ogura T, Sugimori K, Takebayashi S, Okada M, et al. Ablation therapy guided by contrast-enhanced sonography with Sonazoid for hepatocellular carcinoma lesions not detected by conventional sonography. JUltrasound Med 2008; 27: 395-406.10.7863/jum.2008.27.3.39518314518]Search in Google Scholar
[13. Bruix JSherman M. Management of hepatocellular carcinoma. Hepatology 2005; 42: 1208-36.10.1002/hep.2093316250051]Search in Google Scholar
[14. Kokudo NMakuuchi M. Evidence-based clinical practice guidelines for hepatocellular carcinoma in Japan: the J-HCC guidelines. J Gastroenterol 2009; 44(Suppl 19): 119-21.10.1007/s00535-008-2244-z19148805]Search in Google Scholar
[15. Kim YS, Lee WJ, Rhim H, Lim HK, Choi DLee JY. The minimal ablative margin of radiofrequency ablation of hepatocellular carcinoma (> 2 and < 5 cm) needed to prevent local tumor progression: 3D quantitative assessment using CT image fusion. AJR Am J Roentgenol 2010; 195: 758-65.10.2214/AJR.09.295420729457]Search in Google Scholar
[16. Kim CK, Choi D, Lim HK, Kim SH, Lee WJ, Kim MJ, et al. Therapeutic response assessment of percutaneous radiofrequency ablation for hepatocellular carcinoma: utility of contrast-enhanced agent detection imaging. Eur J Radiol 2005; 56: 66-73.10.1016/j.ejrad.2005.03.02315913940]Search in Google Scholar
[17. Lu MD, Yu XL, Li AH, Jiang TA, Chen MH, Zhao BZ, et al. Comparison of contrast enhanced ultrasound and contrast enhanced CT or MRI in monitoring percutaneous thermal ablation procedure in patients with hepatocellular carcinoma: a multi-center study in China. Ultrasound Med Biol 2007; 33: 1736-49.10.1016/j.ultrasmedbio.2007.05.00417629608]Search in Google Scholar
[18. Kisaka Y, Hirooka M, Kumagi T, Uehara T, Hiasa Y, Kumano S, et al. Usefulness of contrast-enhanced ultrasonography with abdominal virtual ultrasonography in assessing therapeutic response in hepatocellular carcinoma treated with radiofrequency ablation. Liver Int 2006; 26: 1241-7.10.1111/j.1478-3231.2006.01367.x17105590]Search in Google Scholar
[19. Kisaka Y, Hirooka M, Koizumi Y, Abe M, Matsuura B, Hiasa Y, et al. Contrastenhanced sonography with abdominal virtual sonography in monitoring radiofrequency ablation of hepatocellular carcinoma. J Clin Ultrasound 2010; 38: 138-44.]Search in Google Scholar
[20. Landmark KE, Johansen PW, Johnson JA, Johansen B, Uran SSkotland T. Pharmacokinetics of perfluorobutane following intravenous bolus injection and continuous infusion of sonazoid in healthy volunteers and in patients with reduced pulmonary diffusing capacity. Ultrasound Med Biol 2008; 34: 494-501.10.1016/j.ultrasmedbio.2007.09.01918096304]Search in Google Scholar
[21. Hiraoka A, Hirooka M, Koizumi Y, Hidaka S, Uehara T, Ichikawa S, et al. Modified technique for determining therapeutic response to radiofrequency ablation therapy for hepatocellular carcinoma using US-volume system. Oncol Rep 2010; 23: 493-7.]Search in Google Scholar