Assessment of therapeutic response in hepatocellular carcinoma treated with percutaneous radio frequency ablation: comparison of multiphase helical computed tomography and power Doppler ultrasonography with a microbubble contrast agent

Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine
Dongil ChoiJae Hoon Lim

Abstract

To compare the results of multiphase helical computed tomography and power Doppler ultrasonography with a microbubble contrast agent in the assessment of the therapeutic response to radio frequency ablation in hepatocellular carcinoma. In 66 patients with 73 nodular hepatocellular carcinomas ranging from 1.0 to 4.0 cm (mean, 2.6 cm) in diameter, contrast-enhanced power Doppler ultrasonography was performed after intravenous bolus injection of a galactose-based microbubble contrast agent before and after radio frequency ablation. The results of the studies were compared with the findings of follow-up 3-phase helical computed tomography. All patients were regularly followed up with computed tomography for more than 1 year (range, 13-19 months). In 8 (11%) of 73 hepatocellular carcinomas, immediate follow-up computed tomography obtained within 2 hours after radio frequency ablation showed focal enhancing portions within the treated lesions, suggesting residual non-necrotic tumors. All 8 of these tumors had intratumoral flow signals on contrast-enhanced power Doppler ultrasonography. The diagnostic agreement between computed tomography and contrast-enhanced power Doppler ultrasonography was achieved in 100%. Among the remaining 65 ...Continue Reading

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Citations

Nov 19, 2003·Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine·Dongil ChoiJae Hoon Lim
Sep 27, 2003·Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine·Ji Hyun YoukChong Soo Kim
Oct 7, 2004·Korean Journal of Radiology : Official Journal of the Korean Radiological Society·Dongil ChoiJae Hoon Lim
Nov 10, 2004·World Journal of Gastroenterology : WJG·Yong-Song GuanXiao-Hua Zheng
Jan 29, 2005·International Journal of Hyperthermia : the Official Journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group·H Rhim
May 24, 2005·AJR. American Journal of Roentgenology·Dongil ChoiSeonwoo Kim
Nov 30, 2013·International Journal of Hyperthermia : the Official Journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group·Feng LeiRen Jintao
Sep 12, 2019·The British Journal of Radiology·Fang GuoJia Li
Nov 19, 2003·Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine·Hui-Xiong XuJia-Ping Li
Aug 21, 2008·Journal of Gastroenterology and Hepatology·Hyunchul RhimWon Jae Lee
Apr 20, 2010·Expert Review of Anticancer Therapy·Anoop P Ayyappan, Kartik S Jhaveri

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