caa a22 4500 605540020 CHVBK 20210128100909.0 cr unu---uuuuu 210128e20150401xx s 000 0 eng 10.1007/s10396-014-0598-9 doi (NATIONALLICENCE)springer-10.1007/s10396-014-0598-9 Characterization of the biliary tract by virtual ultrasonography constructed by gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid-enhanced magnetic resonance imaging [Elektronische Daten] [Yohei Koizumi, Masashi Hirooka, Hironori Ochi, Yoshio Tokumoto, Megumi Takechi, Atsushi Hiraoka, Yoshio Ikeda, Teru Kumagi, Bunzo Matsuura, Masanori Abe, Yoichi Hiasa] Purpose: This study aimed at prospectively evaluating bile duct anatomy on ultrasonography and evaluating the safety and utility of radiofrequency ablation (RFA) assisted by virtual ultrasonography from gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid (Gd-EOB-DTPA)-enhanced magnetic resonance imaging (MRI). Methods: The institutional review board approved this study, and patients provided written informed consent prior to entry into the study. Bile duct anatomy was assessed in 201 patients who underwent Gd-EOB-DTPA-enhanced MRI for the evaluation of hepatic tumor. Eighty-one of these patients subsequently underwent RFA assisted by ultrasound imaging. In 23 patients, the tumor was located within 5mm of the central bile duct, as demonstrated by MRI. Results: Virtual ultrasonography constructed by Gd-EOB-enhanced MRI was able to visualize the common bile duct, left hepatic duct, and right hepatic duct in 96.5, 94.0, and 89.6% of cases, respectively. The target hepatic tumor nodule and biliary duct could be detected with virtual ultrasonography in all patients, and no severe complications occurred. Conclusion: The running pattern of the bile ducts could be recognized on conventional ultrasound by referencing virtual ultrasonography constructed by Gd-EOB-DTPA-enhanced MRI. RFA assisted by this imaging strategy did not result in bile duct injury. The Japan Society of Ultrasonics in Medicine, 2014 Hepatocellular carcinoma nationallicence Radiofrequency ablation nationallicence Virtual ultrasonography nationallicence Gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid nationallicence Bile duct nationallicence HCC : Hepatocellular carcinoma nationallicence RFA : Radiofrequency ablation nationallicence Gd-EOB-DTPA : Gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid nationallicence MRI : Magnetic resonance imaging nationallicence US : Ultrasound nationallicence CT : Computed tomography nationallicence PEI : Percutaneous ethanol injection nationallicence Koizumi Yohei Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, 791-0295, Toon, Ehime, Japan aut Hirooka Masashi Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, 791-0295, Toon, Ehime, Japan aut Ochi Hironori Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, 791-0295, Toon, Ehime, Japan aut Tokumoto Yoshio Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, 791-0295, Toon, Ehime, Japan aut Takechi Megumi Department of Radiology, Ehime University Graduate School of Medicine, 791-0295, Toon, Ehime, Japan aut Hiraoka Atsushi Gastroenterology Center, Ehime Prefectural Central Hospital, Ehime, Japan aut Ikeda Yoshio Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, 791-0295, Toon, Ehime, Japan aut Kumagi Teru Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, 791-0295, Toon, Ehime, Japan aut Matsuura Bunzo Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, 791-0295, Toon, Ehime, Japan aut Abe Masanori Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, 791-0295, Toon, Ehime, Japan aut Hiasa Yoichi Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, 791-0295, Toon, Ehime, Japan aut Journal of Medical Ultrasonics Springer Japan 42/2(2015-04-01), 185-193 1346-4523 42:2<185 2015 42 10396 https://doi.org/10.1007/s10396-014-0598-9 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10396-014-0598-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Koizumi Yohei Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, 791-0295, Toon, Ehime, Japan aut NATIONALLICENCE 700 1- Hirooka Masashi Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, 791-0295, Toon, Ehime, Japan aut NATIONALLICENCE 700 1- Ochi Hironori Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, 791-0295, Toon, Ehime, Japan aut NATIONALLICENCE 700 1- Tokumoto Yoshio Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, 791-0295, Toon, Ehime, Japan aut NATIONALLICENCE 700 1- Takechi Megumi Department of Radiology, Ehime University Graduate School of Medicine, 791-0295, Toon, Ehime, Japan aut NATIONALLICENCE 700 1- Hiraoka Atsushi Gastroenterology Center, Ehime Prefectural Central Hospital, Ehime, Japan aut NATIONALLICENCE 700 1- Ikeda Yoshio Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, 791-0295, Toon, Ehime, Japan aut NATIONALLICENCE 700 1- Kumagi Teru Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, 791-0295, Toon, Ehime, Japan aut NATIONALLICENCE 700 1- Matsuura Bunzo Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, 791-0295, Toon, Ehime, Japan aut NATIONALLICENCE 700 1- Abe Masanori Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, 791-0295, Toon, Ehime, Japan aut NATIONALLICENCE 700 1- Hiasa Yoichi Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, 791-0295, Toon, Ehime, Japan aut NATIONALLICENCE 773 0- Journal of Medical Ultrasonics Springer Japan 42/2(2015-04-01), 185-193 1346-4523 42:2<185 2015 42 10396