Assertion: ultrasound's difficulty | /r/CapableOf | image structure
Facets:
value: behind air
type: LOCATION
value: behind bone
type: LOCATION
Source sentences:
text: Drawbacks include various limits on its field of view, such as the need for patient cooperation, dependence on physique, difficulty imaging structures behind bone and air or gases,[note 1] and the necessity of a skilled operator, usually a trained professional.
text: Drawbacks include various limits on its field of view, such as the need for patient cooperation, dependence on physique, difficulty imaging structures behind bone and air or gases,[note 1] and the necessity of a skilled operator, usually a trained professional.