F-FDG PET Imaging in the Evaluation of Treatment Response to New Chemotherapies beyond Imatinib for Patients with Gastrointestinal Stromal Tumors.

Autor: Stefanelli A; Institute of Nuclear Medicine, Catholic University of the Sacred Heart, Largo Gemelli, 8, 00168 Rome, Italy., Treglia G, Mirk P, Muoio B, Giordano A
Jazyk: angličtina
Zdroj: ISRN gastroenterology [ISRN Gastroenterol] 2011; Vol. 2011, pp. 824892. Date of Electronic Publication: 2011 Aug 14.
DOI: 10.5402/2011/824892
Abstrakt: Aim. (18)F-fluorodeoxyglucose positron emission tomography ((18)F-FDG PET) is a powerful tool for staging and defining "good responders" to chemotherapy in tumor setting. Gastrointestinal stromal tumors (GISTs) are sarcoma involving gastrointestinal tract and may require a chemotherapy including imatinib, a tyrosine kinase inhibitor agent. Some GIST patients become refractory to imatinib; therefore, other tyrosine kinase inhibitors or concomitant chemotherapy may be considered for treatment. The aim of this paper is to assess if (18)F-FDG PET imaging is a useful tool to evaluate treatment response to new chemotherapies beyond imatinib for GIST patients. Methods. We performed a review of the literature about the role of (18)F-FDG PET in the evaluation of treatment response to new chemotherapies beyond imatinib for GIST patients. Results and Conclusions. (18)F-FDG PET seems to be able to assess therapy response earlier than computed tomography (CT) imaging in imatinib refractory GIST patients treated with other agents. However, a dual modality PET-CT imaging is recommendable to achieve a better detection of all lesions.
Databáze: MEDLINE