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Published in: CardioVascular and Interventional Radiology 11/2020

Open Access 01-11-2020 | Metastasis | Clinical Investigation

Intra-hepatic Abscopal Effect Following Radioembolization of Hepatic Metastases

Authors: Maciej Powerski, Ralph Drewes, Jazan Omari, Borna Relja, Alexey Surov, Maciej Pech

Published in: CardioVascular and Interventional Radiology | Issue 11/2020

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Abstract

Purpose

To search for abscopal effects (AE) distant to the site of radiation after sequential Yittrium-90 (Y-90) radioembolization (RE) of liver malignancies.

Methods and Materials

In this retrospective analysis, all patients treated by RE between 2007 and 2018 (n = 907) were screened for the following setting/conditions: sequential RE of left and right liver lobe in two sessions, liver-specific MRI (MRI1) acquired max. 10 days before or after first RE (RE1), liver-specific MRI (MRI2) acquired with a minimum time interval of 20 days after MRI1, but before second RE (RE2). No systemic tumor therapies between MRI1 and MRI2. No patients with liver cirrhosis. Metastases > 5 mm in untreated liver lobes were compared in MRI1 and MRI2 and rated as follows: same size or larger in MRI2 = no abscopal effect (NAE); > 30% shrinkage without Y-90 contamination in SPECT/CT = abscopal effect (AE).

Results

Ninety six of 907 patients met aforementioned criteria. Median time-frame between RE1 and MRI2 was 34 (20–64) days. These 96 cases had 765 metastases which were evaluable (median 5(1–40) metastases per patient). Four patients could be identified with at least one shrinking metastasis of the untreated site: one patient with breast cancer (3 metastases: 0 NAE; 3 AE), one patient with prostate cancer (6 metastases: 3 NAE; 3 metastases > 30% shrinkage but possible Y-90 contamination) and two patients with shrinkage of one metastasis each but less than 30%.

Conclusion

Our retrospective study documents AE after RE of liver tumors in 1 out of 96 cases, 3 other cases remain unclear.
Literature
21.
go back to reference Camphausen K, Moses MA, Ménard C, Sproull M, Beecken W-D, Folkman J, et al. Radiation abscopal antitumor effect is mediated through p53. Cancer Res. 2003;63:1990–3.PubMed Camphausen K, Moses MA, Ménard C, Sproull M, Beecken W-D, Folkman J, et al. Radiation abscopal antitumor effect is mediated through p53. Cancer Res. 2003;63:1990–3.PubMed
Metadata
Title
Intra-hepatic Abscopal Effect Following Radioembolization of Hepatic Metastases
Authors
Maciej Powerski
Ralph Drewes
Jazan Omari
Borna Relja
Alexey Surov
Maciej Pech
Publication date
01-11-2020
Publisher
Springer US
Published in
CardioVascular and Interventional Radiology / Issue 11/2020
Print ISSN: 0174-1551
Electronic ISSN: 1432-086X
DOI
https://doi.org/10.1007/s00270-020-02612-4

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