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Liver volumetry improves evaluation of treatment response to hepatic artery infusion chemotherapy in uveal melanoma patients with liver metastases Cover

Liver volumetry improves evaluation of treatment response to hepatic artery infusion chemotherapy in uveal melanoma patients with liver metastases

Open Access
|Nov 2024

Abstract

Background

In uveal melanoma patients, short-term evaluation of treatment response to hepatic artery infusion chemotherapy (HAIC) using the Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 criteria is challenging due to the diffuse metastatic spread. As liver enlargement can frequently be observed, this study aims to compare RECIST 1.1 and liver volumetry (LV) for the evaluation of HAIC treatment response.

Patients and methods

Treatment response was evaluated in 143 patients (mean age 65.1 ± 10.9 years, 54% female) treated by HAIC by RECIST 1.1 and LV on CT imaging performed before and after HAIC. In LV, different increases in liver volume were evaluated to set an effective threshold to distinguish between stable disease (SD) and progressive disease (PD). Overall survival (OS) was calculated as the time from first HAIC to patient death using Kaplan-Meier test and multivariate analysis was performed for RECIST 1.1 and LV.

Results

In the overall population, median OS (mOS) was 13.5 months (95% CI 11.2–15.8 months). In LV, a threshold of 10% increase in liver volume was suited to identify patients with significantly reduced OS (SD: 103/143 patients, mOS 15.9 months; PD: 40/143 patients, 6.6 months; p < 0.001). Compared to RECIST 1.1, LV was the only significant prognostic factor that was able to identify a decreased OS.

Conclusions

In uveal melanoma patients with liver metastases, LV with a threshold for liver volume increase of 10% was suitable to evaluate treatment response and would be able to be used as a valuable add-on or even alternative to RECIST 1.1.

DOI: https://doi.org/10.2478/raon-2024-0063 | Journal eISSN: 1581-3207 | Journal ISSN: 1318-2099
Language: English
Page range: 509 - 516
Submitted on: Aug 2, 2024
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Accepted on: Oct 9, 2024
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Published on: Nov 28, 2024
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2024 Sebastian Zensen, Hannah L Steinberg-Vorhoff, Aleksandar Milosevic, Heike Richly, Jens T Siveke, Marcel Opitz, Johannes Haubold, Yan Li, Michael Forsting, Benedikt Michael Schaarschmidt, published by Association of Radiology and Oncology
This work is licensed under the Creative Commons Attribution 4.0 License.