Skip to main content

Table 2 Clinical and pathological characteristics of the GGOs for localization

From: A novel localization technique for peripheral ground glass opacity using geometric parameters measured on CT images

Characteristics GGOs (n = 108)
GGO size (mm) 8.55 ± 2.60
GGO type, n (%)
 Pure GGO 47 (44)
 Mixed GGO 61 (57)
GGO location, n (%)
 Right upper lobe 40 (37)
 Right middle lobe 8 (7)
 Right lower lobe 25 (23)
 Left upper lobe 20 (19)
 Left lower lobe 15 (14)
Localization parameters
 X-axis value (cm) 8.76 ± 5.57
 Y-axis value (median, range) 5th rib, 1st intercostal space-12th rib
 Z-axis value (cm) 0.49 ± 0.60
Pathological diagnosis, n (%)
 Atypical adenomatous hyperplasia 8 (7)
 Other Benign lesions 4 (4)
 Adenocarcinoma in situ 22 (20)
 Minimally invasive adenocarcinoma 51 (47)
 Invasive adenocarcinoma 23 (21)
Stage, n (%)
 Benign 12(11)
 0 22 (20)
 IA1 62 (57)
 IA2 12 (11)
  1. X-axis value: the measured distance between the parietal pleural projection of GGO and landmark (capitulum costae or sternocostal joint) on CT images; Y-axis value: Y-axis value referred to the rib or intercostal space corresponding to the parietal pleural projection; Z-axis value: lesion depth from pleura; Stage was determined by the eighth edition of the tumor, node, metastasis classification of lung cancer
  2. GGO ground glass opacity