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Clinical usefulness of the fluorodeoxyglucose (FDG)-PET maximal standardized uptake value (SUV) in combination with CT features for the differentiation of adenocarcinoma with a bronchioloalveolar carcinoma from other subtypes of non-small cell lung cancers.

Authors
Sun, JS; Park, KJ; Sheen, SS; Yoon, JK; Yoon, SN; Lee, KB; Hwang, SC
Citation
Lung cancer (Amsterdam, Netherlands), 66(2):205-210, 2009
Journal Title
Lung cancer (Amsterdam, Netherlands)
ISSN
0169-50021872-8332
Abstract
PURPOSE: To evaluate the clinical usefulness of fluorodeoxyglucose (FDG)-PET maximal SUV in combination with CT features for differentiation of adenocarcinoma with bronchioloalveolar carcinoma (BAC) from other subtypes of non-small cell lung cancer (NSCLC).



MATERIALS AND METHODS: This retrospective study included 125 patients (104 men and 21 women; mean age, 64 years) who underwent CT and subsequent FDG-PET examinations for preoperative evaluation and underwent curative intent operation with the final diagnoses of NSCLC made by surgical histopathology. We categorized NSCLC into adenocarcinoma with BAC feature and other subtypes. Finally, there were 16 cases of adenocarcinoma with BAC and 109 cases of other NSCLC subtypes included in the study. Several CT features of lung cancer were analyzed, including tumor size, presence of spiculation, margin (irregular or smooth), pattern of the mass (pure solid, pure ground glass opacity and mixed), associated pleural effusion and location (center, mid and periphery). Maximal SUV and visual scores of FDG uptakes of primary NSCLC were evaluated. The diagnostic performances of CT alone, PET alone, and combination of two modalities to predict adenocarcinoma with BAC from other subtypes of NSCLC were calculated.



RESULTS: A nodule with a mixed pattern with partly solid and ground glass opacity was significantly more frequent CT feature of an adenocarcinoma with BAC (8/16, 50%) as compared with the other subtypes (2/109, 1.8%) (p<0.0001). Maximal SUV of adenocarcinoma with BAC (mean=7.2) was significantly lower than that of other subtypes of NSCLC (mean=13.33) (p<0.0001). Sensitivity, specificity, PPV, and NPV of CT for differentiating adenocarcinoma with BAC from other subtypes was 50% (8/16), 98.2% (107/109), 80% (8/10), and 93% (107/115), respectively. Sensitivity, specificity, PPV, and NPV of FDG-PET was 68.8% (11/16), 86.2% (94/109), 42.3% (11/26), and 94.9% (94/99), respectively. Sensitivity, specificity, PPV, and NPV of combination of two modalities was 81.3% (13/16), 85.3% (93/109), 44.8% (13/29), 96.9% (93/96), respectively.



CONCLUSION: Careful combined assessment of the FDG-PET maximal SUV and CT findings have the potential to differentiate an adenocarcinoma with BAC from other NSCLC subtypes, such as a pure BAC. These findings might be useful for imaging interpretations and will help initial planning of NSCLC management.
MeSH terms
Adenocarcinoma/diagnosis*Adenocarcinoma/radiographyAdenocarcinoma/radionuclide imagingAdenocarcinoma, Bronchiolo-Alveolar/diagnosis*Adenocarcinoma, Bronchiolo-Alveolar/radiographyAdenocarcinoma, Bronchiolo-Alveolar/radionuclideimagingCarcinoma, Non-Small-Cell Lung/classificationCarcinoma, Non-Small-Cell Lung/diagnosis*FemaleFluorodeoxyglucose F18/diagnostic use*HumansLung Neoplasms/diagnosis*Lung Neoplasms/radiographyLung Neoplasms/radionuclide imagingMaleMiddle AgedPositron-Emission Tomography/methods*Tomography, X-Ray Computed/methods*
DOI
10.1016/j.lungcan.2009.01.009
PMID
19203812
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Radiology
Journal Papers > School of Medicine / Graduate School of Medicine > Pulmonary & Critical Care Medicine
Journal Papers > School of Medicine / Graduate School of Medicine > Nuclear Medicine & Molecular Imaging
Journal Papers > School of Medicine / Graduate School of Medicine > Pathology
Journal Papers > School of Medicine / Graduate School of Medicine > Medical Science
AJOU Authors
선, 주성박, 경주신, 승수윤, 준기이, 기범황, 성철
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