Analysis of Tumor Burden as a Biomarker for Patient Survival with Neuroendocrine Tumor Liver Metastases Undergoing Intra-Arterial Therapies: A Single-Center Retrospective Analysis

Milena Miszczuk, Julius Chapiro, Duc Do Minh, Johanna Maria Mijntje van Breugel, Susanne Smolka, Irvin Rexha, Bruno Tegel, Ming De Lin, Lynn Jeanette Savic, Kelvin Hong, Christos Georgiades, Nariman Nezami

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose: To assess the value of quantitative analysis of tumor burden on baseline MRI for prediction of survival in patients with neuroendocrine tumor liver metastases (NELM) undergoing intra-arterial therapies. Materials and Methods: This retrospective single-center analysis included 122 patients with NELM who received conventional (n = 74) or drug-eluting beads, (n = 20) chemoembolization and radioembolization (n = 28) from 2000 to 2014. Overall tumor diameter (1D) and area (2D) of up to 3 largest liver lesions were measured on baseline arterially contrast enhanced MR images. Three-dimensional quantitative analysis was performed using the qEASL tool (IntelliSpace Portal Version 8, Philips) to calculate enhancing tumor burden (the ratio between enhancing tumor volume and total liver volume). Based on Q-statistics, patients were stratified into low tumor burden (TB) or high TB. Results: The survival curves were significantly separated between low TB and high TB groups for 1D (p < 0.001), 2D (p < 0.001) and enhancing TB (p = 0.008) measurements, with, respectively, 2.7, 2.6 and 2.2 times longer median overall survival (MOS) in the low TB group (p < 0.001, p < 0.001 and p = 0.008). Multivariate analysis showed that 1D, 2D, and enhancing TB were independent prognostic factors for MOS, with respective hazard ratios of 0.4 (95%CI: 0.2–0.6, p < 0.001), 0.4 (95%CI: 0.3–0.7, p < 0.001) and 0.5 (95%CI: 0.3–0.8, p = 0.003). Conclusion: The overall tumor diameter, overall tumor area, and enhancing tumor burden are strong prognostic factors of overall survival in patients with neuroendocrine tumor liver metastases undergoing intra-arterial therapies.

Original languageEnglish (US)
Pages (from-to)1494-1502
Number of pages9
JournalCardiovascular and interventional radiology
Volume45
Issue number10
DOIs
StatePublished - Oct 2022

Keywords

  • 3D
  • Intra-arterial therapy
  • Neuroendocrine tumors
  • Survival
  • Tumor burden
  • Volumetric assessment
  • qEASL

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Radiology Nuclear Medicine and imaging

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