A team of researchers at Penn State College of Engineering have been fine-tuning a technology that allows them to create ...

Fetal echo is short for fetal echocardiogram, an ultrasound test doctors use to ... It emits ultrasonic sound waves into your belly that create an image on the doctor’s screen.

Directing sound to a specific location is difficult because of how sound waves behave. As vibrations move through the air, ...

Ultrasound technology uses sound waves produced and detected by a tool called a transducer. An echo is produced when body tissues reflect the sound waves emitted by the transducer. The transducer ...

In physics, 'ultrasound' refers to sound waves with a frequency too high for humans to hear. The sound reflects and echoes off parts of the tissue; this echo is recorded and displayed as an image ...

And the results are over 95% accurate." An echo test involves ultrasound-- high-frequency sound waves -- to evaluate the function of heart muscle and valves, the same technology used to ensure a ...

However, conventional ultrasound and echo-enhanced sonography should not be used as separate imaging techniques. Conventional ultrasound is the basic sonographic method, and tumor differentiation ...

From January 1999 to October 2002, we prospectively studied 31 patients (mean age 57 years, range 36-82 years) with a cystic pancreatic lesion at the conventional ultrasound. Eleven patients ...