Images on ultrasound that ARE NOT REAL.
High-attenuation: Objects decrease the sound wave
A shadow results behind a high-attenuating object.This makes the objects behind less visible
Low-attenuation: sound passes through object very easily.
Low-attenuating tissue causes everything behind it to appear HYPERechoic or more visible
Mirror image: sound bounces off diaphragm, returning to trasnducer with a longer time of flight. Machine interprets this as more liver tissue across the diaphragm. A mirror image of the liver or spleen across the diaphragm is normal
A shadow results behind a high-attenuating object.This makes the objects behind less visible
Low-attenuating tissue causes everything behind it to appear HYPERechoic or more visible
Ultrasound: Probe orientation
Ultrasound: Probe selection
Ultrasound: Signs
Ultrasound: Pelvic
Ultrasound: physics and knobology
Ultrasound: Abdomen
Ultrasound: Soft tissue
Ultrasound: Pharyngeal