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Which one of the following anomalies is associated with micromelia and a “hitchhiker thumb?”

Kidneys should be sonographically documented in all fetuses beginning at ______ weeks’ gestation.

A normal amniotic fluid volume cannot exclude renal agenesis before _____ weeks’ gestation.

Fusion of the lower extremities is associated with which one of the following?

The bladder wall thickness in a fetus is normally _____ mm.

Decreasing the spatial pulse length  ______________________

In Doppler, the number of pulses per scan line is called  _____________________

Attenuation denotes _______________________

All of the following correctly describe the damping material in the transducer, EXCEPT ________________

Two hundred (200) patients were examined by Bilateral Internal Carotid Arteries (ICA) Duplex Ultrasonography and Cerebral Angiography. Of these, 300 ICAs were correctly identified as being within normal limits, 80 ICAs were correctly identified as having significant stenosis, 15 ICAs were incorrectly considered to have significant stenosis by sonography and 5 ICAs were incorrectly considered to be within normal limits by sonography. The specificity of ICAs Duplex is ________