Asphericity Derived from [F]FDG PET As a New Prognostic Parameter in Cervical Cancer Patients

Overview

Journal Sci Rep

Specialty Science

Date 2023 May 24

PMID 37225735

Authors

Paulina Cegla

Frank Hofheinz

Ewa Burchardt

Rafal Czepczynski

Anna Kubiak

Jorg van den Hoff

Pavel Nikulin

Agnieszka Bos-Liedke

Andrzej Roszak

Witold Cholewinski

Affiliations

Soon will be listed here.

Abstract

The objective of this study was to assess the prognostic value of asphericity (ASP) and standardized uptake ratio (SUR) in cervical cancer patients. Retrospective analysis was performed on a group of 508 (aged 55 ± 12 years) previously untreated cervical cancer patients. All patients underwent a pretreatment [F]FDG PET/CT study to assess the severity of the disease. The metabolic tumor volume (MTV) of the cervical cancer was delineated with an adaptive threshold method. For the resulting ROIs the maximum standardized uptake value (SUV) was measured. In addition, ASP and SUR were determined as previously described. Univariate Cox regression and Kaplan-Meier analysis with respect to event free survival (EFS), overall survival (OS), freedom from distant metastasis (FFDM) and locoregional control (LRC) was performed. Additionally, a multivariate Cox regression including clinically relevant parameters was performed. In the survival analysis, MTV and ASP were shown to be prognostic factors for all investigated endpoints. Tumor metabolism quantified with the SUV was not prognostic for any of the endpoints (p > 0.2). The SUR did not reach statistical significance either (p = 0.1, 0.25, 0.066, 0.053, respectively). In the multivariate analysis, the ASP remained a significant factor for EFS and LRC, while MTV was a significant factor for FFDM, indicating their independent prognostic value for the respective endpoints. The alternative parameter ASP has the potential to improve the prognostic value of [F]FDG PET/CT for event-free survival and locoregional control in radically treated cervical cancer patients.

Citing Articles

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