JOURNAL OF CLINICAL SURGERY ›› 2020, Vol. 28 ›› Issue (9): 841-844.doi: 10.3969/j.issn.1005-6483.2020.09.014

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Predictive value of CTR in patients with multiple ground-glass opacity (GGO) nodules

  

  1. Department of Thoracic Surgery,Brain Hospital Affiliated to Nanjing Medical University,Nanjing 210029,China
  • Online:2020-09-20 Published:2020-09-20

Abstract: Objective To assess the predictive value of preoperative chest HRCT consolidation/tumor ratio (CTR) in patients with multiple ground-glass opacity (GGO).
Methods A total of 91 patients with N0 stage lung cancer were enrolled.The patients were divided into GGO group and solid nodule group by CTR=0.5.The difference of clinical and pathological features and 3-year recurrence survival rate (RFS) of the two groups were compared.
Results Among the 91 patients enrolled,35 (38.5%) had multiple GGO nodules.The maximum diameter of the GGO group was significantly smaller than that of the solid nodules group (10.2mm vs 21.6mm,P<0.05).COX multivariate regression analysis showed that tumors≥20mm (HR:1.22,P=0.043) and solid nodules (CTR≥0.5) were independent predictors of RFS.Kaplan-Meier survival curve analysis showed that the RFS of the GGO group was 91.4%,while the RFS of the solid nodule group was 75.0%.There was a significant difference between the two groups (P<0.05).
Conclusion The CTR value displayed by HRCT is an effective reference for follow-up and treatment of patients with multiple GGO.Surgical intervention is the preferred treatment when CTR is greater than 0.5.

Key words: lung cancer, ground-glass opacity, multifocal lesions, consolidation/tumor ratio, surgery

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