Intrinsic radiosensitivity using the clonogenic assay and the cell surviving fraction at 2 Gy (SF2) has been shown to be an independent prognostic factor for patient response to radiotherapy in carcinoma of the cervix. The clonogenic assay has significant shortcomings, making it unsuitable for routine clinical use. The ATP cell viability assay (ATP-CVA) has been shown to have a high tumor evaluability rate, technical simplicity, and reproducibility in chemosensitivity testing.
Gynaecological Oncology Division, Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, 102, Pokfulam Road, Hong Kong SAR, China. tamkfa@netvigator.com