Pilot Study to Evaluate 18F-fluorodeoxyglucose (FDG) Positron Emission Tomography /Computed Tomography (PET/CT) in Prediction of Early Response to Chemotherapy in Ovarian Cancer.

The study will evaluate the potential of PET imaging to identify early responders to chemotherapy. Patients entered into this study will undergo FDG PET within 2 weeks prior to chemotherapy and prior to initiation of the second course of chemotherapy. All images will be carried out in the same manner with respect to equipment, acquisition parameters, and time post injection, to ensure that changes in standard uptake value(SUV) correlate with metabolic changes. This will be correlated with response determined by changes in serum CA 125 levels.