Postoperative restaging: PET/CT impact on diagnosis and management

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Abstract

Purpose The goal of this study was to assess the value of combined PET/CT in the restaging of suspected recurrent cancer and its impact on further management planning of the patients. Patients and methods Fourty-two patients with suspected recurrence due to new clinical, biochemical and radiologic findings were prospectively evaluated. PET/CT results were compared with PET and CT data. A final diagnosis of recurrence was confirmed by biopsy or by further clinical and radiologic work-up. Results Thirty nine out of 42 patients had recurrence and or distant metastases in 108 malignant sites. For the site-based analysis PET/CT showed 100% sensitivity, 80% specificity, 98% PPV, 100% NPV and 98% accuracy compared with 100%, 50%, 94%, 100% and 95%, respectively, for PET, and 87%, 50%, 94%, 28% and 83%, respectively, for CT. For the patient-based analysis, PET/CT showed 100% sensitivity, 75% specificity, 97% PPV, 100% NPV and 98% accuracy compared with 100%, 50%, 92%, 100% and 93%, respectively for PET and 86%, 75%, 97%, 38% and 86%, respectively for CT. PET/CT results changed the management of 90% of patients. Conclusion PET/CT provides accurate restaging of suspected recurrent cancer with a significant clinical impact on further management planning. © 2013 Egyptian Society of Radiology and Nuclear Medicine. Production and hosting by Elsevier B.V. All rights reserved.

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Zidan, D. Z., Hasan, M. G., & Tantawy, M. T. (2013). Postoperative restaging: PET/CT impact on diagnosis and management. Egyptian Journal of Radiology and Nuclear Medicine, 44(2), 321–329. https://doi.org/10.1016/j.ejrnm.2013.03.003

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