A lady presented with a 4 cm tumor in the left parietal lobe for which she underwent surgery and radiotherapy. After 3 months she presented with headache and vomiting. Which of the following would characterise the lesion in the patient?
Gd-enhanced MRI 99Tc-HMPAO SPECT brain c)	Digital substraction angiography with dual source of ST scan d)	18FDG PET Scan