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Table 2 Nodule characteristics (n = 67 nodules)

From: Shape-sensing robotic-assisted bronchoscopy for pulmonary nodules: initial multicenter experience using the Ion™ Endoluminal System

Variable Outcome
Size, median mm (IQR)
 Axial 17.5 (12.0, 24.0)
 Coronal 16.0 (11.8, 21.0)
 Sagittal 16.2 (12.0, 22.0)
 Largest cardinal diameter 20.0 (14.0, 27.0)
Lobe location, n (%)
 LLL 8 (11.9)
 LUL 18 (26.9)
 RLL 21 (31.3)
 RML 3 (4.5)
 RUL 17 (25.4)
Distance from pleura or fissure, median mm (IQR) 4.0 (0.0, 15.0)
Bronchial generation count, median n (IQR) 7.0 (6.0, 8.0)
Location, n (%)a  
 Endoluminal 10 (15.4)
 Extraluminal 55 (84.6)
Nodule type, n (%)
 Solid 55 (82.1)
  Cavitary 4
 Semi-solid 12 (17.9)
 CT Bronchus sign present, n (%) 25 (37.3)
 rEBUS attempted, n (%) 66 (98.5)
 rEBUS visualization, n (%)b 59 (89.4)
  Concentric, initially 23 (40)
  Eccentric converted to concentric 8 (13.6)
  Eccentric 28 (47.5)
  1. IQR interquartile range, LLL left lower lobe, LUL left upper lobe, RLL right lower lobe, RML right middle lobe, RUL right upper lobe, rEBUS radial endobronchial ultrasound
  2. a2 subjects had early termination
  3. brEBUS visualization is based on nodules attempted