Fellow sufferers of CML may well find the attached article of interest.
Patients with chronic myeloid leukemia who maintain a complete molecular response after stopping imatinib treatment have evidence of persistent leukemia by DNA PCR
http://www.nature.com/leu/journal/v24/n10/abs/leu2010185a.html
The abstract is free to view but the full article requires a payment.
Regards
Andy