Info

SUV 0 35% (cutoff)

(prediction of response)

SR, survival rate.

(prediction of response)

SR, survival rate.

ficity, PPV, and NPV of FDG-PET were 70%, 69%, 78%, and 60%, respectively, in the detection of recurrent disease.

Ott et al.247 have used a 35% decrease from the baseline metabolic activity on day 14 of preoperative chemotherapy to predict tumor response in patients with gastric cancer (Table 33.11). The sensitivity and specificity of FDG-PET for prediction of histopathologic response were 77% and 86%, respectively, and the 2-year overall survival of "responders" compared with that of "nonresponders" was 90% and 25%, respectively.

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