Advanced imaging to predict response to chemotherapy in colorectal liver metastases: a systematic review

Rianne C. J. Beckers, Doenja M. J. Lambregts, Max J. Lahaye, Sheng-Xiang Rao, Kelly Kleinen, Cecile Grootscholten, Geerard L. Beets, Regina G. H. Beets-Tan, Monique Maas*

*Corresponding author for this work

Research output: Contribution to journal(Systematic) Review article peer-review

21 Citations (Web of Science)
22 Downloads (Pure)

Abstract

Background: The assessment of colorectal liver metastases (CRLM) after treatment with chemotherapy is challenging due to morphological and/or functional change without changes in size. The aim of this review was to assess the value of FDG-PET, FDG-PET-CT, CT and MRI in predicting response to chemotherapy in CRLM. Methods: A systematic review was undertaken based on PRISMA statement. PubMed and Embase were searched up to October 2016 for studies on the accuracy of PET, PET-CT, CT and MRI in predicting RECIST or metabolic response to chemotherapy and/or survival in patients with CRLM. Articles evaluating the assessment of response after chemotherapy were excluded. Results: Sixteen studies met the inclusion criteria and were included for further analysis. Study results were available for 6 studies for FDG-PET(-CT), 6 studies for CT and 9 studies for MRI. Generally, features predicting RECIST or metabolic response often predicted shorter survival. The ADC (apparent diffusion coefficient, on MRI) seems to be the most promising predictor of response and survival. In CT-related studies, few attenuation-related parameters and texture features show promising results. In FDG-PET(-CT), findings were ambiguous. Conclusion: Radiological data on the prediction of response to chemotherapy for CRLM is relatively sparse and heterogeneous. Despite that, a promising parameter might be ADC. Second, there seems to be a seemingly counterintuitive correlation between parameters that predict a good response and also predict poor survival.
Original languageEnglish
Pages (from-to)120-127
Number of pages8
JournalHPB
Volume20
Issue number2
DOIs
Publication statusPublished - 1 Feb 2018

Keywords

  • POSITRON-EMISSION-TOMOGRAPHY
  • APPARENT DIFFUSION-COEFFICIENT
  • CT TEXTURE ANALYSIS
  • FDG-PET
  • PREOPERATIVE CHEMOTHERAPY
  • HEPATIC METASTASES
  • CERVICAL-CANCER
  • TUMOR RESPONSE
  • 1ST-LINE CHEMOTHERAPY
  • ENHANCED MRI

Cite this