The Journal of clinical endocrinology and metabolism · 2009
Impact of fluorodihydroxyphenylalanine-18F positron emission tomography on management of adult patients with documented or occult digestive endocrine tumors.
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Montravers Françoise, Kerrou Khaldoun, Nataf Valérie, Huchet Virginie, Lotz Jean-Pierre, Ruszniewski Philippe, Rougier Philippe, Duron Françoise, Bouchard Philippe, Grangé Jean-Didier, Houry Sydney, Talbot Jean-Noël
Аннотация
CONTEXT AND OBJECTIVES: Fluorodihydroxyphenylalanine-(18F) (FDOPA) positron emission tomography (PET) is a recent imaging modality used to localize endocrine tumors. This study was conducted to evaluate the impact of FDOPA-PET on the management of patients referred for carcinoid or noncarcinoid digestive tumors and the clinical relevance of the treatment decisions based on this examination.
METHODS AND PATIENTS: Between March 2002 and December 2006, 101 FDOPA-PET examinations were performed in 78 adult patients for follow-up of histologically documented carcinoid tumor of the ileum (23 patients) or noncarcinoid digestive tumor (26 patients) or to screen for occult digestive endocrine tumors (29 patients). More than one FDOPA-PET examination was performed in 12 patients. The impact of FDOPA PET was evaluated on a per-patient basis by means of a questionnaire completed by the referring physician, and the relevance of the treatment decision was assessed on the basis of follow-up data.
RESULTS: The survey response rate was 91% (71 of 78). The overall impact rate of FDOPA-PET on patient management was 25% (18 of 71). The greatest impact was observed for carcinoid tumors (50%: 11 of 22) and was clinically relevant in every case, followed by occult endocrine tumors (16%: four of 25), and was clinically relevant in three of the four cases, and noncarcinoid tumors (13%: 3 of 22), clinically relevant in only one case.
CONCLUSION: FDOPA-PET appears to be a major tool for the management of carcinoid tumors with excellent diagnostic performances and induced relevant changes in patient management. FDOPA-PET was less sensitive and less useful for the management of noncarcinoid tumors.
METHODS AND PATIENTS: Between March 2002 and December 2006, 101 FDOPA-PET examinations were performed in 78 adult patients for follow-up of histologically documented carcinoid tumor of the ileum (23 patients) or noncarcinoid digestive tumor (26 patients) or to screen for occult digestive endocrine tumors (29 patients). More than one FDOPA-PET examination was performed in 12 patients. The impact of FDOPA PET was evaluated on a per-patient basis by means of a questionnaire completed by the referring physician, and the relevance of the treatment decision was assessed on the basis of follow-up data.
RESULTS: The survey response rate was 91% (71 of 78). The overall impact rate of FDOPA-PET on patient management was 25% (18 of 71). The greatest impact was observed for carcinoid tumors (50%: 11 of 22) and was clinically relevant in every case, followed by occult endocrine tumors (16%: four of 25), and was clinically relevant in three of the four cases, and noncarcinoid tumors (13%: 3 of 22), clinically relevant in only one case.
CONCLUSION: FDOPA-PET appears to be a major tool for the management of carcinoid tumors with excellent diagnostic performances and induced relevant changes in patient management. FDOPA-PET was less sensitive and less useful for the management of noncarcinoid tumors.