Factors associated with false-positive staging of lung cancer by positron emission tomography

被引:140
|
作者
Roberts, PF
Follette, DM
von Haag, D
Park, JA
Valk, PE
Pounds, TR
Hopkins, DM
机构
[1] Univ Calif Davis, Div Cardiothorac Surg, Sacramento, CA 95817 USA
[2] No Calif PET Imaging Ctr, Sacramento, CA USA
来源
ANNALS OF THORACIC SURGERY | 2000年 / 70卷 / 04期
关键词
D O I
10.1016/S0003-4975(00)01769-0
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Background. Positron emission tomography imaging is gaining popularity as a noninvasive staging tool in non-small cell lung cancer. Nonmalignant processes can also affect radio-tracer uptake. This study seeks to identify factors associated with false-positive staging of mediastinal metastases. Methods. A retrospective review was performed of 100 patients with early stage non-small cell lung cancer referred for positron emission tomography scan evaluation. All had pathologic confirmation of their disease. Positron emission tomography scans, radiology records, operative reports, and pathology results were reviewed. Patients with positron emission tomography scans interpreted as positive for mediastinal involvement and negative pathology at operation were selected. Results. Seven patients were found to have a false-positive positron emission tomography evaluation for mediastinal metastases. All but 1 patient had a concurrent inflammatory process or an anatomic factor associated with the false positive. The sensitivity and specificity in detecting involved mediastinal nodes was 87.5% and 90.7%, respectively. The negative predictive value was 95.8%. Conclusions. Although positron emission tomography has been established as an accurate modality to stage non-small cell lung cancer, false-positive evaluation of mediastinal metastases can occur in the setting of concurrent inflammatory lung diseases or for centrally located tumors. Pathologic evaluation of mediastinal disease should be pursued whenever suggested by a positive positron emission tomography scan especially in the face of those factors described. (C) 2000 by The Society of Thoracic Surgeons.
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收藏
页码:1154 / 1159
页数:6
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