Ces radiol. 2017, 71(3):216-225 | DOI: 10.55095/CesRadiol2017/030

Volumetric analysis of liver before and after portal vein embolization - our experienceOriginal article

Monika Staňková1, Vendula Trunčíková2, Tomáš Andrašina1, Jakub Hustý1, Vlastimil Válek1
1 Klinika radiologie a nukleární medicíny LF MU a FN Brno
2 Lékařská fakulta Masarykovy univerzity

Aim: To evaluate the increase in the future liver remnant (FLR) in patients prior to liver resection who underwent portal vein embolization, regarding applied embolization material. Another aim is to evaluate the interobserver variability of volumetric analysis for the measurement of volumes.

Methods: The total of 36 patients prior planned liver resection who underwent portal vein embolization in the University Hospital Brno were included in this retrospective study. Volumetric analysis was performed on CT/MRI before and after the procedure by two independent radiologists. The interobserver variability was determined by using Pearson and Wilcoxon correlation coefficient. The correlation between the increase in FLR and applied embolization material was determined by using pair t-test, as well as for the determination of correlation between the increase in FLR and recanalization of v. portae.

Results: The portal vein embolization was successful in all the patients with average increase in FLR by 4% for S2+3, by 8% for left liver lobe. Recanalization of v.portae occurred in 18 patients. The volume of S2+3 increased in average by 30%, the volume of left lobe by 30%. Major increase in FLR was proved using the permanent embolization agents (p = 0.014), the influence of recanalization was not proved (p = 0.056). Volumetric analysis shows to be a method of assessment with a very low interobserver variability; the Pearson correlation coefficient is > 0.9 (p < 0.001) for all the parameters.

Conclusion: In case of insufficient value of FLR before liver resection, it is possible to increase it with the portal vein embolization. The permanent embolization agents appear to be eligible. The volumetric analysis can be used for the determination of FLR, since it is a method with significantly low interobserver variability.

Keywords: FLR, hemihepatectomy, portal vein embolization, volumetric analysis
Grants and funding:

Práce vznikla v rámci projektu MUNI/A/1083/2015 Grantové agentury MU.

Accepted: September 15, 2017; Published: September 1, 2017  Show citation

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Staňková M, Trunčíková V, Andrašina T, Hustý J, Válek V. Volumetric analysis of liver before and after portal vein embolization - our experience. Ces radiol. 2017;71(3):216-225. doi: 10.55095/CesRadiol2017/030.
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