Novel Automatic Detection of Pleura and B-lines (Comet-Tail Artifacts) on In-Vivo Lung Ultrasound Scans.

Ramin Moshavegh, Kristoffer Lindskov Hansen, Hasse Møller-Sørensen, Martin Christian Hemmsen, Caroline Ewertsen, Michael Bachmann Nielsen, Jørgen Arendt Jensen

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This paper presents a novel automatic method for detection of B-lines (comet-tail artifacts) in lung ultrasound scans. B-lines are the most commonly used artifacts for analyzing the pulmonary edema. They appear as laser-like vertical beams, which arise from the pleural line and spread down without fading to the edge of the screen. An increase in their number is associated with presence of edema. All the scans used in this study were acquired using a BK3000 ultrasound scanner (BK Ultrasound, Denmark) driving a 192-element 5.5 MHz wide linear transducer (10L2W, BK Ultrasound). The dynamic received focus technique was employed to generate the sequences. Six subjects, among those three patients after major surgery and three normal subjects, were scanned once and Six ultrasound sequences each containing 50 frames were acquired. The proposed algorithm was applied to all 300 in-vivo lung ultrasound images. The pleural line is first segmented on each image and then the B-line
artifacts spreading down from the pleural line are detected and overlayed on the image. The resulting 300 images showed that the mean lateral distance between B-lines detected on images acquired from patients decreased by 20% in compare with that of normal subjects. Therefore, the method can be used as the basis of a method of automatically and qualitatively characterizing the distribution of B-lines.
Original languageEnglish
Title of host publicationProceedings of SPIE
EditorsNeb Duric, Brecht Heyde
Number of pages7
PublisherSPIE - International Society for Optical Engineering
Publication date2016
Article number97900K
Publication statusPublished - 2016
EventSPIE Medical Imaging 2016 : Ultrasonic Imaging and Tomography - Town & Country Resort and Convention Cente, San Diego, United States
Duration: 27 Feb 20163 Mar 2016
Conference number: 9790


ConferenceSPIE Medical Imaging 2016
LocationTown & Country Resort and Convention Cente
CountryUnited States
CitySan Diego
Internet address


  • B-lines
  • Comet-tail artifacts
  • Segmentation
  • Lung disease
  • Pulmonary edema
  • Ultrasound imaging

Cite this

Moshavegh, R., Hansen, K. L., Møller-Sørensen, H., Hemmsen, M. C., Ewertsen, C., Nielsen, M. B., & Jensen, J. A. (2016). Novel Automatic Detection of Pleura and B-lines (Comet-Tail Artifacts) on In-Vivo Lung Ultrasound Scans. In N. Duric, & B. Heyde (Eds.), Proceedings of SPIE (Vol. 9790). [97900K] SPIE - International Society for Optical Engineering.