• Annals of medicine · Dec 2024

    Prognostic value of [18F]FDG PET/CT in metastatic hormone-sensitive prostate cancer at initial diagnosis: a retrospective cohort study.

    • Ang Li, Kai Shen, Yiyi Ji, Weiwei Zhang, Bo Liu, Ruopeng Su, Xiang Zhou, Liang Dong, Yinjie Zhu, Baijun Dong, Jiahua Pan, Qi Wang, and Wei Xue.
    • Department of Urology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
    • Ann. Med. 2024 Dec 1; 56 (1): 24110172411017.

    IntroductionThis retrospective study aimed to evaluate the prognostic value of [18F]FDG parameters in patients with visceral and bone metastatic hormone-sensitive prostate cancer (mHSPC).Patients And MethodsThis analysis included the mHSPC patients who underwent [18F]FDG PET/CT at the initial diagnosis. Baseline characteristics were analyzed, and the uptake of [18F]FDG was quantified using SUVmax. Kaplan-Meier and Cox proportional hazard regression analysis were employed to evaluate the correlation between SUVmax and patient survival.ResultsAmong the 267 patients enrolled, 90 (33.7%) presented with visceral metastases and 177 (66.3%) had bone metastases. The median follow-up for the visceral metastasis group was 35.5 months (IQR 26-53.8 months). The median overall survival for patients with lung, liver, or both metastases were 30, 21 and 17 months, respectively. Patients exhibiting higher [18F]FDG uptake in metastatic lesions experienced shorter overall survival (OS) in comparison to those with lower [18F]FDG uptake, both in the visceral metastases group (17 vs. 31 months, p = 0.002) and the bone metastases group (27.5 vs. 34.5 months, p < 0.001). Cox regression analysis further revealed that increased [18F]FDG uptake in metastatic lesions emerged as a significant risk factor in both OS and progression-free survival (PFS). In contrast, the variability in [18F]FDG uptake in primary lesions did not provide a reliable indicator for predicting prognosis.ConclusionsIn mHSPC patients, higher [18F]FDG uptake in metastatic lesions indicates shorter survival and increased risk of disease progression. The [18F]FDG SUVmax in primary tumors did not show significant prognostic value. Our study underscores the unique prognostic potential of [18F]FDG PET/CT in mHSPC patients, highlighting its importance in the management of both bone and visceral metastases.

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