Comparison Of Linear And Sector Array Probe For Handheld Lung Ultrasound In Invasively Ventilated Icu Patients

M.R. Smit*, J. de Vos, L. Pisani, L.A. Hagens, C. Almondo, N.F.L. Heijnen, R.M. Schnabel, I.C. van der Horst, D.C.J.J. Bergmans, M.J. Schultz, L.D.J. Bos, DARTS Consortium

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review


International guidelines do not recommend a specific probe for assessment of lung aeration using lung ultrasound (LUS). The aim of this study was to assess the concordance between linear and sector array probes of a handheld ultrasound device in assessment of lung aeration in invasively ventilated intensive care unit patients. This study included intensive care unit patients who were expected to be ventilated for longer than 24 h. A 12-region LUS exam was performed with a linear and a sector array probe. In each image, the LUS aeration score and number of B-lines were determined. Adding the LUS aeration scores of all regions resulted in a global LUS aeration score. Agreement between the two probes was calculated using intra-class correlation coefficients (ICCs). A total of 30 LUS exams were performed in 19 patients, resulting in a total of 328 pairs of images. Twenty-nine pairs of images were excluded from analysis because the images from the linear probe could not be scored. ICCs calculated for the remaining images revealed good concordance the LUS aeration scores for individual images (ICC = 0.73, 95% confidence interval 0.67-0.78), number of B-lines (ICC = 0.79, 95% confidence interval 0.72-0.83) and global LUS aeration score (ICC = 0.74, 95% confidence interval 0.52-0.87). In conclusion, there is good concordance between linear and sector array probes of a handheld ultrasound device in assessment of lung aeration patterns in mechanically ventilated intensive care unit patients. However, in roughly 10% of the images acquired using the linear probe, the aeration pattern could not be scored. (E-mail: m.r. (C) 2020 World Federation for Ultrasound in Medicine & Biology. All rights reserved.
Original languageEnglish
Pages (from-to)3249-3256
Number of pages8
JournalUltrasound in Medicine and Biology
Issue number12
Publication statusPublished - 1 Dec 2020


  • lung ultrasound
  • intensive care
  • mechanical ventilation
  • linear probe
  • sector array probe
  • lung ultrasound aeration score
  • computed-tomography
  • care
  • Intensive care
  • Lung ultrasound
  • CARE
  • Linear probe
  • Lung ultrasound aeration score
  • Mechanical ventilation
  • Sector array probe

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