Answer:
The correct answer is- Ultra sound imaging.
Step-by-step explanation:
Ultrasound imaging is a technique that uses high-frequency sound waves to check and visualize the internal organs like the heart. They are able to show the images of the heart in real-time and they are used to show the image of heart muscle contraction in motion and how efficiently the blood is flowing through the internal heart structures.
The ultrasonic waves that are produced by the device gets reflect of from different body layer which is converted into an electrical signal by transducer and image of the organ is seen on the screen. So the right answer is Ultrasound imaging.