1. [Impact of positron emission tomography on clinical management of potentially resectable non-small-cell lung cancer: a French prospective multicenter study]
- Author
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J, Margery, B, Milleron, F, Vaylet, D, Grahek, B, Lebeau, G, Mangiapan, G, Bonardel, C, de Labriolle-Vaylet, M, Meignan, M-F, Carette, J-N, Talbot, and B, Housset
- Subjects
Adult ,Male ,Lung Neoplasms ,Decision Making ,Patient Care Planning ,Fluorodeoxyglucose F18 ,Carcinoma, Non-Small-Cell Lung ,Humans ,False Positive Reactions ,Whole Body Imaging ,Prospective Studies ,Pneumonectomy ,Aged ,Neoplasm Staging ,Retrospective Studies ,Aged, 80 and over ,Mediastinoscopy ,Liver Neoplasms ,Palliative Care ,Middle Aged ,Lymphatic Metastasis ,Positron-Emission Tomography ,Colonic Neoplasms ,Lymph Node Excision ,Neoplasms, Unknown Primary ,Female ,Radiopharmaceuticals ,Tomography, X-Ray Computed - Abstract
Whole-body (18)F-deoxyglucose positron emission tomography (FDG-PET) has the potential to improve the management of non-small-cell lung cancer (NSCLC). We prospectively evaluated the impact of combining FDG-PET with conventional staging methods, including computed tomography (CT), on the staging and management of patients with potentially resectable NSCLC.Ninety-four consecutive patients with newly diagnosed/suspected NSCLC were enrolled. Each patient was first staged by using conventional methods, and then by FDG-PET. FDG-PET results were forwarded in a sealed envelope and divulged at the weekly staff meeting on staging and treatment, only after "Decision 1", based on conventional staging, had been reached by consensus; reevaluation taking FDG-PET into account yielded "Decision 2". The validity of these latter decisions was analyzed retrospectively.Eighty-nine patients were eligible. Relative to standard imaging, FDG-PET led to clinical staging changes in 26 (29.2%) patients. The stage was lowered in eight cases (9%) and raised in 18 cases (20.2%). "Decision 2" differed from "Decision 1" in 19 patients, modifying the surgical procedure in four cases, indicating other investigations to confirm FDG-PET evidence of metastases in 12 cases, or modifying the medical treatment in three cases. These modifications were retrospectively justified in 9/19 cases, and consisted of 2/4 modifications of the surgical procedure (one hilar and one adrenal metastasis not confirmed histologically), 4/12 further investigations (axillary and liver biopsies, mediastinoscopy, occult colon cancer) and three indications for palliative treatment, in patients who all died within 3 months after FDG-PET.Based on FDG-PET, management was modified in 19/89 (21.3%) patients, but these changes were justified in only 9/89 patients (10.1%). FDG-PET can detect asymptomatic local and distant metastases and improves the preoperative assessment of NSCLC, thereby avoiding unnecessary surgery. However, histological verification is required because of the risk of false-positive results.
- Published
- 2010