What does time of flight refer to in ultrasound imaging?
Choose only ONE best answer.
A
The time it takes for an ultrasound post to travel to the moon
B
The duration it takes for an ultrasound post to travel to an object and back as an echo
C
The time it takes for an ultrasound post to travel through water
B
The duration it takes for an ultrasound post to travel to an object and back as an echo