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2005年Fleischner学会关于 < 8 mm的肺结节的随访方案和处理原则

Recommendations for follow-up and management of nodules smaller than 8 mm detected incidentally at nonscreening CT from the Fleischner scocity in 2005

Nodule size (mm) (Average of length and width)	Low-risk patient (Minimal or absent history of smoking and of other known risk factors)	High-risk patient (History of smoking or of other known risk factors)
Nonsolid (ground-glass) or partly solid nodules may require longer follow-up to exclude indolent adenocarcinoma.
≤4	No follow-up needed	Follow-up CT at 12 mo; if unchanged, no further follow-up
> 4-6	Follow-up CT at 12 mo; if unchanged, no further follow-up	Initial follow-up CT at 6-12 mo then at 18-24 mo if no change
> 6-8	Initial follow-up CT at 6-12 mo then at 18-24 mo if no change	Initial follow-up CT at 3-6 mo then at 9-12 and 24 mo if no change
> 8	Follow-up CT at around 3, 9 and 24 mo, dynamic contrast-enhanced CT, PET and/or biopsy	Same as for low-risk patient