Page 57 - Ultrasonography in Prehospital and Emergency Medicine - Rein Ketelaars
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Foreign objects
In the wilderness environment, Paziana described two cases where PHUS was successfully used to aide in the removal of foreign objects from soft tissue.101 PHUS may determine the exact location and depth of a foreign object despite that some are radiolucent. The location and size of the incision can be determined, and the removal may take place under direct US visualization.
Ocular ultrasonography
Besides ONSD measurements, ocular US appears useful and feasible in the prehospital set- ting. It is useful to diagnose penetrating globe injury, foreign body retention, retinal de- tachment, vitreous detachment, central retinal artery occlusion, lens dislocation, retrobul- bar hematoma, and retinal and vitreous hemorrhage.102,103 The eye can be accurately assessed without the need to open the eyelid in case of swelling. An austere environment case report described PHUS helping to diagnose a retinal detachment after a facial gunshot wound. Im- mediate evacuation was arranged to facilitate appropriate follow-up care.104
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