Please see this article on why we should all practice ultrasound in critical care!
Watch for Basic Lung Ultrasound
Watch for Advanced Lung Ultrasound
Watch for General and Lung Pathology Ultrasound
A lines – Basic
Use your echo cardiac phased array probe for this!
See also our section on images in pneumothorax
In a blunt trauma series, pneumothorax detection:
- CXR sensitivity 75%, specificity 100%
- EUS sensitivity 98%, specificity 99%
- Using multiple windows, we are able to assess the size of the pneumothorax with good correlation.
- You can do this by mapping out “lung point” which is the point where the lung drops away from the chest wall. And doing this you can get a good idea of what size the pneumothorax is.
13:54: Pneumothorax Scanning Technique
- Linear high frequency probe needed
- Place the probe cephalad-caudad with the indicator towards the head.
- Place it in the 2nd intercostal space in the mid-clavicular line in (again) a vertical orientation.
You want to watch four to five respiratory cycles.
- Identify the pleural line
- Observe lung sliding
- Sky-Ocean-Beach interface on M-mode
Other causes of absent lung sliding:
- Consolidation with pleural adhesions
- Chest tubes
- Advanced COPD