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Title: A Comparison of Three Transarterial Lipiodol-Based Formulations for Hepatocellular Carcinoma: In Vivo Biodistribution Study in Humans

Journal Article · · Cardiovascular and Interventional Radiology
 [1];  [2];  [3]; ;  [4];  [2];  [4]
  1. Hong Kong Sanatorium Hospital, Comprehensive Oncology Centre, Hong Kong (China)
  2. Chinese University of Hong Kong, Department of Surgery Prince of Wales Hospital, Hong Kong (China)
  3. Prince of Wales Hospital, Chinese University of Hong Kong, Department of Diagnostic Radiology and Organ Imaging, Hong Kong (China)
  4. Prince of Wales Hospital, Chinese University of Hong Kong, Department of Clinical Oncology, Hong Kong (China)

This study aimed to evaluate and compare the biodistribution properties of three transarterial Lipiodol-based therapeutic regimens in human hepatocellular carcinoma (HCC). In this prospective study with 13 patients randomly allocated to one of three study groups, each of the patients received transcatheter intra-arterial administration into a solitary HCC with one of three different Lipiodol-based formulations: Lipiodol-ethanol mixture (LEM; Group A), Lipiodol alone (Group B), and Lipiodol and gelatin pledgets (Group C). With the use of radioactive iodine-131-labeled Lipiodol, each group was assessed for (1) pattern of Lipiodol accumulation in the lungs within the first 2 weeks as evaluated by single-photon emission computed tomography and (2) decomposition of Lipiodol formulation within the first 2 weeks as evaluated by radioactivity detected in peripheral blood and urine. The degree of Lipiodol retention in the tumor within the first 4 weeks was evaluated with CT. No statistically significant difference in Lipiodol accumulation in the lungs was detected among the three groups. However, the peak accumulation in the lungs was delayed 3 days for Group A compared to Groups B and C. The degree of Lipiodol retention within the tumor in Group A was significantly greater than that in Groups B and C on day 14 (p = 0.014) and day 28 (p = 0.013). This study showed that LEM is associated with a greater embolic effect in intrahepatic HCC at 4 weeks, and a comparable degree of lung shunting and decomposition rates, compared with ethanol-free Lipiodol formulations.

OSTI ID:
21090642
Journal Information:
Cardiovascular and Interventional Radiology, Vol. 31, Issue 2; Other Information: DOI: 10.1007/s00270-007-9173-8; Copyright (c) 2008 Springer Science+Business Media, LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0174-1551
Country of Publication:
United States
Language:
English