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A Practical Guide for the Production and PET/CT Imaging of 68Ga-DOTATATE for Neuroendocrine Tumors in Daily Clinical Practice
Published on: April 17, 2019
Prognostic value of 68 Ga PSMA I&T PET/CT SUV parameters on survival outcome in advanced prostat cancer
Halil Komek1, Canan Can2, Ugur Yilmaz3
1Department of Nuclear Medicine, Saglik Bilimleri University Diyarbakir Gazi Yasargil Training and Research Hospital, Kayapınar, Diyarbakir, Turkey. halilkomek@gmail.com.
Objective:
To determine the association of 68 Ga-PSMA-I&T PET/CT SUV parameters with survival outcome in advanced prostate cancer patients.
Methods:
A total of 148 consecutive patients mean age: 69.3 ± 7.8 years with advanced prostate cancer who underwent 68 Ga-PSMA-I&T PET/CT were included in this retrospective study. Data on previous treatments, serum PSA levels (ng/mL), 68 Ga-PSMA-I&T PET/CT findings metastases as well as survival data were recorded.
Results:
Multivariate regression analysis revealed that Level 1 LN SUV/Liver SUV ratios > 2.17 (OR 4.262; 95% CI 1.104-16.453, p = 0.035), bone SUV > 10.7(OR 23.650; 95% CI 4.056-137.888, p < 0.001), bone SUV/spleen SUV ratio > 1.842 (OR 25.324; 95% CI 4.204-152.552, p < 0.001), highest SUVmax/liver SUV ratio > 2.32 (OR 19.309; 95% CI 1.730-209.552, p = 0.016) and highest SUVmax/spleen SUV ratio > 1.842 (OR 22.354; 95% CI 2.637-189.493, p = 0.004) were significant in the determination of increased mortality risk in advanced prostate cancer patients.
Conclusion:
Our findings, for the first time in literature, provided evidence on potential utility of tracer uptake (SUV) cut-off values on 68 Ga-PSMA PET/CT in identification of the survival outcome of patients with metastatic disease and thereby in assisting in the selection of individualized therapeutic strategies tailored to the expected prognosis.
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