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Iodized oil uptake assessment with cone-beam CT in chemoembolization of small hepatocellular carcinomas

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Author(s): Ung Bae Jeon, Jun Woo Lee, Ki Seok Choo, Chang Won Kim, Suk Kim, Tae Hong Lee, Yeon Joo Jeong, Dae Hwan Kang

Journal: World Journal of Gastroenterology
ISSN 1007-9327

Volume: 15;
Issue: 46;
Start page: 5833;
Date: 2009;
Original page

Keywords: Chemoembolization | Computed tomography | Hepatocellular carcinoma | Liver

ABSTRACT
AIM: To evaluate the utility of assessing iodized oil uptake with cone-beam computed tomography (CT) in transarterial chemoembolization (TACE) for small hepatocellular carcinoma (HCC).METHODS: Cone-beam CT provided by a biplane flat-panel detector angiography suite was performed on eighteen patients (sixteen men and two women; 41-76 years; mean age, 58.9 years) directly after TACE for small HCC (26 nodules under 30 mm; mean diameter, 11.9 mm; range, 5-28 mm). The pre-procedural locations of the tumors were evaluated using triphasic multi-detector row helical computed tomography (MDCT). The tumor locations on MDCT and the iodized oil uptake by the tumors were analyzed on cone-beam CT and on spot image directly after the procedures.RESULTS: All lesions on preprocedural MDCT were detected using iodized oil uptake in the lesions on cone-beam CT (sensitivity 100%, 26/26). Spot image depicted iodized oil uptake in 22 of the lesions (sensitivity 85%). The degree of iodized oil uptake was overestimated (9%, 2/22) or underestimated (14%, 3/22) on spot image in five nodules compared with that of cone-beam CT.CONCLUSION: Cone-beam CT is a useful and convenient tool for assessing the iodized oil uptake of small hepatic tumors (< 3 cm) directly after TACE.
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