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The 13-microsecond rule states that ultrasound travels:
1 cm in 13 µs (round-trip)
The go-return time refers to the time required for a pulse to:
Travel to a reflector and back to the transducer
an echo returning in 26 µs originated from a depth of:
2 cm
If a reflector is located at a depth of 3 cm, the time of flight is approximately:
39 µs
If the time of flight is 78 µs, the reflector depth is:
6 cm
If sound speed in a tissue is slower than assumed, the reflector will appear:
Too deep
A reflector is located 4 cm deep. What is the TOTAL distance traveled by the pulse?
8 cm
A pulse travels a total distance of 12 cm before returning to the transducer. The reflector depth is:
6 cm
If sound speed in a tissue is faster than assumed, the reflector will appear:
too shallow
how do you calculate the depth of reflector in soft tissue?
(1.54 mm/us x go return time) / 2
An echo returns to the transducer after 39 µs. The reflector depth is approximately:
3 cm
An ultrasound system detects an echo at 104 µs. The reflector depth is closest to:
8 cm