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实性结节影像学随访策略的区别

The difference of the follow up strategy of solid nodules

Item	Low risk (mm)					High risk (mm)
	＜4	＞4 to＜6	＞6 to＜8	≥8		＜4	＞4 to＜6	＞6 to＜8	≥8
CT: computed tomography; NCCN: National Comprehensive Cancer Network; ACCP: American College of Chest Physicians; PET: positron emission computed tomography.
2016 NCCN Guidelines	No follow-up needed	CT at 12 mo, if stable, no further follow-up	CT at 6-12 mo, if stable, then repeat CT at 18-24 mo	CT at 3, 9, and 24 mo, consider PET or biopsy		CT at 12 mo, if stable, no further follow-up	CT at 6-12 mo, if stable, repeat CT at 18-24 mo	CT at 3-6 mo, if stable, repeat CT at 9-12 mo and 24 mo	CT at 3, 9, and 24 mo, consider PET or biopsy
2017 Fleischner Society Guidelines	No routine follow-up	No routine follow-up	CT at 6-12 mo, if stable, then repeat CT at 18-24 mo	Consider CT, PET, or tissue sampling at 3 mo		Optional CT at 12 mo	Optional CT at 12 mo	CT at 6-12 mo then CT at 18-24 mo	Consider CT, PET or tissue sampling at 3 mo
2013 ACCP Guidelines	No follow-up needed	CT at 12 mo	CT at 6-12 mo, if stable, then repeat CT at 18-24 mo	CT at 3, 9, and 24 mo, consider PET or biopsy		No follow-up needed	CT at 6-12 mo, if stable, repeat CT at 18-24 mo	CT at 3-6 mo, if stable, repeat CT at 9-12 mo and 24 mo	CT at 3, 9, and 24 mo, consider PET or biopsy
2016 Clinical practice consensus guidelines for Asia	Annual CT surveillance	CT at 12 mo and then annual CT surveillance	CT at 6-12 mo, if stable, then repeat CT at 18-24 mo and then annual CT surveillance	CT at 3-6, 9-12, and 18-24 mo, if the nodule sclear growth then surgical biopsy		Patient discussion	CT at 6-12 mo, if stable, then repeat CT at 18-24 mo and then annual CT surveillance	CT at 3, 6, and 12 mo then annual CT surveillance	PET scan if hypermetabolic，surgical biopsy, if surgical biopsy is positive, then surgical resection