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Hepatic Flow Redistribution is Feasible in Patients with Hepatic Malignancies Undergoing Same-Day Work-Up Angiography and Yttrium-90 Microsphere Radioembolization

  • Clinical Investigation
  • Interventional Oncology
  • Published:
CardioVascular and Interventional Radiology Aims and scope Submit manuscript

Abstract

Purpose

To assess the feasibility of performing same-day vascular flow redistribution and Yttrium-90 radioembolization (90Y-RE) for hepatic malignancies.

Materials and Methods

From November 2015 to February 2019, patients undergoing same-day hepatic flow redistribution during work-up angiography, 99mTechnetium-labeled macroaggregated albumin (99mTc-MAA) SPECT/CT and 90Y microsphere-RE, were recruited. Within 18 h following the delivery of 90Y resin microspheres, an 90Y-PET/CT study was performed. According to patients’ vascular anatomy, flow redistribution was performed by microcoil embolization of extrahepatic branches (group A), intrahepatic non-tumoral vessels (group B) and intrahepatic tumoral arteries (group C). The accumulation of 99mTc-MAA particles and microspheres in the redistributed areas was qualitatively evaluated using a 5-point visual scale (grade 1 = < 25% accumulation; grade 5 = 100% accumulation). Differences in the distribution of microspheres among groups were assessed with Mann–Whitney U test.

Results

Twenty-two patients were treated for primary (n = 17) and secondary (n = 5) hepatic malignancies. The MAA-SPECT/CT showed uptake in all the redistributed areas. Regarding the accumulation of microspheres within the redistributed segments in all the groups, perfusion patterns were classified as 2 in 1 case, 4 in 6 cases and 5 in 15 cases. No statistically significant differences were observed between groups A and B–C (U value = 34, p = 0.32) and between groups B and C (U value = 26, p = 0.7). Mean predicted absorbed doses by the tumoral and normal hepatic tissues were 163.5 ± 131.2 Gy and 60.4 ± 69.3 Gy, respectively. Mean total procedure time (from work-up angiography to 90Y delivery) was 401 ± 0.055 min.

Conclusion

Performing same-day redistribution of the arterial hepatic flow to the target and 90Y-microsphere delivery is feasible in the treatment of liver tumors.

Clinical Trials Registry NCT03380130.

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This study was not supported by any funding.

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Correspondence to A. Ezponda.

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MR-F is paid speakers for Sirtex Medical Europe. JIB and BS are paid consultants and speakers for Sirtex Medical Europe. Neither of the other authors states no conflicts of interests related to this scientific paper.

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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.

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Ezponda, A., Rodríguez-Fraile, M., Morales, M. et al. Hepatic Flow Redistribution is Feasible in Patients with Hepatic Malignancies Undergoing Same-Day Work-Up Angiography and Yttrium-90 Microsphere Radioembolization. Cardiovasc Intervent Radiol 43, 987–995 (2020). https://doi.org/10.1007/s00270-019-02371-x

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