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Published in: BMC Cancer 1/2021

Open Access 01-12-2021 | Magnetic Resonance Imaging | Research

18F-FDG-PET-MRI for the assessment of acute intestinal graft-versus-host-disease (GvHD)

Authors: Wolfgang Roll, Philipp Schindler, Max Masthoff, Rebecca Strotmann, Jörn Albring, Christian Reicherts, Matthias Weckesser, Benjamin Noto, Matthias Stelljes, Michael Schäfers, Georg Evers

Published in: BMC Cancer | Issue 1/2021

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Abstract

Background

Graft versus host disease (GvHD) is a frequent complication of allogeneic stem cell transplantation (alloSCT), significantly increasing mortality. Previous imaging studies focused on the assessment of intestinal GvHD with contrast-enhanced MRI/CT or 18F-FDG-PET imaging alone. The objective of this retrospective study was to elucidate the diagnostic value of a combined 18F-FDG-PET-MRI protocol in patients with acute intestinal GvHD.

Methods

Between 2/2015 and 8/2019, 21 patients with acute intestinal GvHD underwent 18F-FDG-PET-MRI. PET, MRI and PET-MRI datasets were independently reviewed. Readers assessed the number of affected segments of the lower gastrointestinal tract and the reliability of the diagnosis on a 5-point Likert scale and quantitative PET (SUVmax, SUVpeak, metabolic volume (MV)) and MRI parameter (wall thickness), were correlated to clinical staging of acute intestinal GvHD.

Results

The detection rate for acute intestinal GvHD was 56.8% for PET, 61.4% for MRI and 100% for PET-MRI. PET-MRI (median Likert-scale value: 5; range: 4–5) offers a significantly higher reliability of the diagnosis compared to PET (median: 4; range: 2–5; p = 0.01) and MRI alone (median: 4; range: 3–5; p = 0.03). The number of affected segments in PET-MRI (rs = 0.677; p <  0.001) and the MV (rs = 0.703; p <  0.001) correlated significantly with the clinical stage. SUVmax (rs = 0.345; p = 0.14), SUVpeak (rs = 0.276; p = 0.24) and wall thickening (rs = 0.174; p = 0.17) did not show a significant correlation to clinical stage.

Conclusion

18F-FDG-PET-MRI allows for highly reliable assessment of acute intestinal GvHD and adds information indicating clinical severity.
Literature
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Metadata
Title
18F-FDG-PET-MRI for the assessment of acute intestinal graft-versus-host-disease (GvHD)
Authors
Wolfgang Roll
Philipp Schindler
Max Masthoff
Rebecca Strotmann
Jörn Albring
Christian Reicherts
Matthias Weckesser
Benjamin Noto
Matthias Stelljes
Michael Schäfers
Georg Evers
Publication date
01-12-2021
Publisher
BioMed Central
Published in
BMC Cancer / Issue 1/2021
Electronic ISSN: 1471-2407
DOI
https://doi.org/10.1186/s12885-021-08748-x

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