PET/CT require new criteria to hone treatment

February 7, 2008 Diagnostic Imaging. PET/CT require new criteria to hone treatment -------------------------------------------------------------------------------- Integrated PET/CT scanners entered clinical practice in 2001. Their quasisimultaneous acquisition of complementary anatomic and functional information has revolutionized diagnosis and treatment monitoring for many oncological diseases. PET/CT has the advantage of acquiring whole-body examinations in a single step. This enables referring oncology physicians to plan therapy according to the imaging and complementary laboratory results. Defining the extent of disease according to existing guidelines is not easy, however. These guidelines are generally based on experiences with stand-alone CT and PET systems and long follow-up studies. Questions then arise: Do we need combined PET/CT response criteria, and for which cancers might these be useful?

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