Abstract
Purpose
To compare the accuracy of the conventional and portal vein tracing methods in the right hepatic lobe in multidetector computed tomography (MDCT).
Materials and methods
This retrospective study included patients with hepatocellular carcinoma (HCC) lesions in the right hepatic lobe who underwent multiphasic MDCT and C-arm CT hepatic arteriography (C-arm CTHA) for chemoembolization. The accuracies of the conventional and portal vein tracing methods were evaluated using C-arm CTHA as the gold standard.
Results
A total of 147 patients with 205 HCC nodules were included. The C-arm CTHA could identify all the tumour-feeding arteries and consequently demonstrated that 120 lesions were located in the anterior section, 78 in the posterior section, and 7 in the border zone. The accuracy rates of conventional vs. portal vein tracing methods were 71.7 % vs. 98.3 % for the anterior section lesions, 67.9 % vs. 96.2 % for the posterior section, and 28.6 % vs. 57.1 % for the border zone. The portal vein tracing method was more accurate than the conventional method (P<0.001).
Conclusions
The portal vein tracing method should be used for sectional localization of HCCs in the right lobe, because it predicts the location more accurately than the conventional method.
Key Points
• Portal tracing method is more accurate than conventional method for tumour localization.
• The conventional method is especially inaccurate in right anteroinferior or posterosuperior quadrants.
• Scissurae between right anterior and posterior section may not be vertical but tilted.
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Acknowledgments
The scientific guarantor of this publication is Jin Wook Chung. The authors of this manuscript declare no relationships with any companies whose products or services may be related to the subject matter of the article. This study has received funding by National Research and Development Program for Cancer Control, Ministry of Health and Welfare. No complex statistical methods were necessary for this paper. Institutional Review Board approval was obtained. Written informed consent was waived by the Institutional Review Board. Methodology: retrospective, observational, performed at one institution.
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Zhou, CG., Chung, J.W., Hur, S. et al. Sectional Localization of a Small Hepatocellular Carcinoma in the Right Hepatic Lobe by Computed Tomography: Comparison between the Conventional and Portal Vein Tracing Methods. Eur Radiol 26, 4524–4530 (2016). https://doi.org/10.1007/s00330-016-4297-3
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DOI: https://doi.org/10.1007/s00330-016-4297-3