FDG-PET imaging in lung cancer: how sensitive is it for bronchioloalveolar carcinoma?

摘要: While characterization of lung lesions and staging cancer with fluorine-18 fluorodeoxyglucose positron emission tomography (FDG-PET) is an established clinical procedure, a lower diagnostic accuracy FDG-PET for diagnosis so-called bronchioloalveolar carcinoma (BAC) has been reported. Therefore, the PET diagnosing BAC was investigated. We studied 41 patients eventually found to have adenocarcinoma growth pattern who were referred or whole-body between January 1998 March 2001: there 11 males (27%) 30 females (73%), mean age 66.0±10.9 (range =44–84 years). Patients imaged using ECAT EXACT HR+ systems. All had non-attenuation-corrected scans, while transmission data attenuation correction also available 12 (29%). correctly identified in 46 (89%) 39 (95%). By pathology, 25 (61%) unifocal nodular lesions; this by 20 (80%) CT 18 (72%). 7 (44%) 16 (39%) multicentric diffuse BAC, (69%). Of 35 whose lymph node status verified pathologically, correct 27 (77%) 24 missed 67% rare tumors that pure no invasive component. It concluded performance similar most other non-small cell types. less accurate