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New Lung Ultrasound Imaging Information

We'd like to support you in your efforts to continue caring for women during these extraordinary times.

Please find below resource links related to Lung Ultrasound Imaging.

 

How to perform lung ultrasound in pregnant women with suspected COVID

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Voluson - COVID lung exams in pregnancy (2020, poster)

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GE Ultrasound COVID resources including:


Understanding Lung Ultrasound: Focus on B-lines.

 


Voluson Insights

Convex, linear and phased array transducers can be utilized for lung scanning.

  • Convex transducers (C2-9; C4-8; C1-6; C1-5; 4C) provide the depth needed to image the entire lung.
  • Linear transducers(12L; 9L) deliver the optimal resolution and detail when examining the pleural line or subpleural consolidations.
  • Phased Array transducers (M5Sc; S4-10; 3Sc) offer a 1-probe solution for an overview of the lungs, heart and abdomen.


Lung Imaging Steps:

Convex Transducer: Begin in Routine OB or Abdomen application

Linear: Begin in MSK of Routine Small Parts application

Phased Array: Begin in Abdomen application


  • Adjust 11-13cm starting depth for average adults
  • Adjust the focal zone to the level of the pleural line
  • Low level of persistence or frame averaging required to visualize the sliding sign of the pleura
  • CrossXBeamCRI imaging should be off when evaluating B-lines
  • Select a gray map and dynamic contrast levels that assists in highlighting A-line and B-lines (higher contrast makes B-lines easier to distinguish)
  • Uniform gain (increased brightness could makes B-line difficult to differentiate from the surrounding artifacts)


Example of starting parameters for convex transducers:


Evaluating the entire lung for B-Lines:

  • HI: Harmonics Off
  • Frequency to Res or Normal based on body habitus
  • XBeam CRI: Off CrossXBeamCRI
  • SRI: Off
  • Dyn. Cont. 7
  • Sub 2D: Gray Map 7
  • Sub 2D: Line Filter High
  • Sub 2D: Persistence 1
  • Enhance 3

Focus on the Pleural Line:

  • HI: Harmonics Low
  • XBeam CRI: 1 CrossXBeamCRI
  • SRI: 1
  • Dyn. Cont. 7
  • Sub 2D: Gray Map 7
  • Sub 2D: Line Filter High
  • Frame Averaging 0
  • CRI filter off
  • Enhance 3

If you have any questions about the information provided, or if there is additional support we can give you, please send a message on [email protected].

Thank you for the work you are doing for your patients and community.