Review real-time imaging, Doppler, and the role of an acoustic window.
Sound creates the image.
Ultrasound uses sound waves to form images and does not use ionizing radiation. A moving transducer lets the operator change the imaging plane in real time.
Observe motion.
Real-time imaging supports assessment of moving structures and guidance of procedures. Describe what is shown and the view used before interpreting it.
Doppler adds flow information.
Doppler evaluates moving material, including blood flow. Color Doppler displays flow information using a color map; spectral Doppler plots measurements over time.
Recognize the window.
Gas and bone limit ultrasound transmission, and greater depth can reduce image quality. A limited view is not evidence that the structure is absent.
TRY IT IN CONTEXT
Move from theory to the image.
Use the linked ultrasound resource to review a real-time examination. Write down the target organ, scan plane, and one factor that could limit the acoustic window.
Open the ultrasound resourceCompletion is a personal study marker, stored in this browser.