Early metabolic response assessment of breast cancer liver metastases: 4-week posttreatment FDG PET predicts survival after 90Y microsphere radioembolization.

Aim: To evaluate the feasibility of early metabolic response assessment with F-FDG PET/CT in patients with breast cancer liver metastases 4 weeks after radioembolization with Yttrium-90 labeled microspheres.

Methods: 25 patients (mean age 58y, range 40-74) with advanced stage liver metastases of breast cancer were treated with 1.9 ± 0.