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Erschienen in: Annals of Nuclear Medicine 6/2020

15.04.2020 | Original Article

Prognostic value of pretreatment tumor-to-blood standardized uptake ratio (SUR) in rectal cancer

verfasst von: Gokce Belge, Cem Bilgin, Guven Ozkaya, Sedat Giray Kandemirli, Eray Alper

Erschienen in: Annals of Nuclear Medicine | Ausgabe 6/2020

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Abstract

Objectives

The prognostic value of SUV on pretreatment F-18 FDG PET/CT imaging in patients with rectal cancer is a matter of debate. SUR is of prognostic value for survival in different cancers. In this study, we aimed to examine the potential prognostic value of SUR and other parameters in pretreatment F-18 FDG PET/CT for non-metastatic rectal cancer.

Methods

One hundred four non-metastatic rectal cancer patients who underwent pretreatment PET/CT between March 2012 and January 2018 were included in the study. Firstly, SUVmax, SUVmean, MTV, and TLG were calculated semi-automatically at the workstation. SUR was calculated as the ratio of tumor SUVmax to thoracic aorta blood SUVmean. Univariate Cox regression and Kaplan–Meier analysis were used to evaluate overall survival (OS), progression free survival (PFS), and local recurrence (LR). Then, multivariate Cox regression analysis, which included the parameters that were significant in the univariate analysis, was performed.

Results

Multivariate Cox regression analysis revealed that SUR was a prognostic factor for PFS. Age and T stage were prognostic factors for both OS and PFS. MTV was found to be independent risk factors for OS.

Conclusions

In our study, SUR was the only F-18 FDG PET/CT parameter found to be significant for PFS. The development of new parameters can increase the prognostic value of F-18 FDG PET/CT.
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Metadaten
Titel
Prognostic value of pretreatment tumor-to-blood standardized uptake ratio (SUR) in rectal cancer
verfasst von
Gokce Belge
Cem Bilgin
Guven Ozkaya
Sedat Giray Kandemirli
Eray Alper
Publikationsdatum
15.04.2020
Verlag
Springer Singapore
Erschienen in
Annals of Nuclear Medicine / Ausgabe 6/2020
Print ISSN: 0914-7187
Elektronische ISSN: 1864-6433
DOI
https://doi.org/10.1007/s12149-020-01465-8

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