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Table 1 Organisational and infrastructural factors related to the use of ultrasound

From: Results from a Spanish national survey on the application of ultrasound in pulmonology services

Organisation and infrastructure Total N = 104 High-complexity centre N = 58 Intermediate-complexity centre N = 30 Low-complexity centre N = 16
Availability of ultrasound scanners
 Two exclusive-use ultrasound scanners are available in the pneumology service 24/104 (23.0%) 17/58 (29.3%) 5/30 (16.6%) 2/16 (12.5%)
 Three or more exclusive-use ultrasound scanners are available in the pneumology service 27/104 (25.9%) 22/58 (37.9%)a 5/30 (16.6%) 0/16 (0%)
 An ultrasound system is shared with other services 13/104 (12.5%) 2/58 (3.4%)a 4/30 (13.3%)b 7/16 (43.7%)
 Only one ultrasound machine is available in the pulmonology service 34/104 (32.6%) 14/58 (2.1%) 14/30 (46.6%) 6/16 (37.5%)
 No ultrasound scanner is available in the pulmonology service 6/104 (5.7%) 2/58 (3.4%) 2/30 (6.6%) 1/16 (6.25%)
Probe availability
 A linear, convex, and sector probe is available 37/104 (35.5%) 23/58 (39.6%) 9/30 (30%) 5/16 (31.2%)
 A linear and convex probe is available 43/104 (41.3%) 26/58 (44.8%) 11/30 (36.6%) 6/16 (37.5%)
 Only one probe is available 21/104 (20.1%) 9/58 (15.5%) 8/30 (26.6%) 4/16 (25%)
  Linear 3/21 1/9 2/4
  Convex 13/21 4/9 7/8 2/4
  Microconvex 2/21 2/9
  Sectorial 3/21 2/9 1/8
New applications
 Elastography is available 14/104 (13.4%) 9/58 (15.5%) 3/30 (10%) 2/16 (12.5%)
 Elastography type
  Strain 6/104 (5.7%) 4/58 (6.8%) 1/30 (3.3%) 1/16 (6.2%)
  SWE 0/104 (0%) 0/58 (0%) 0/30 (0%) 0/16 (0%)
  Both 8/104 (7.6%) 5/58 (6.89%) 2/30 (6.6%) 1/16 (6.2%)
 Elastography probe
  Linear 2/104 (1.9%) 1/58 (1.7%) 0/30 (0%) 1/16 (6.2%)
  Convex 5/104 (4.8) 3/58 (5.1%) 2/30 (6.6%) 0/16 (0%)
  Both 7/104 (6.7%) 5/58 (8.6%) 1/30 (3.6%) 1/16 (6.2%)
 EBUS elastography is available 13/104 (12.5%) 11/58 (18.9%) 1/30 (3.3%) 1/16 (6.25%)
Dedicated LUS staff
 LUS is performed only in the bronchopleural procedures area 30/104 (28.8%) 18/58 (31.0%) 11/30 (36.6%)b 1/16 (6.25%)
 LUS is performed in the bronchopleural procedures area and in the hospital ward on a routine basis 59/104 (56.7%) 32/58 (55.1%) 17/30 (56.6%) 10/16 (62.5%)
 A person specialised in performing LUS is available 6/104 (5.7%) 4/58 (6.8%) 0/30 (0%) 2/16 (12.5%)
  1. Data expressed as absolute frequencies (%)
  2. SWE shear wave, LUS lung ultrasound, EBUS endobronchial ultrasound
  3. ap < 0.05 high-complexity compared to low-complexity centres
  4. bp < 0.05 intermediate-complexity compared to low-complexity centres