Terms - FujiFilm SonoSite Edge II User Manual

Glossary

Terms

For ultrasound terms not included in this glossary, refer to Recommended Ultrasound Terminology, Third Edition,
published in 2011 by the American Institute of Ultrasound in Medicine (AIUM).
as low as reasonably
achievable (ALARA)
curved array
transducer
depth
in situ
LCD
linear array transducer
mechanical index (MI)
MI/TI
NTSC
PAL
phased array
transducer
skinline
Terms
The guiding principle of ultrasound use, which states that you should keep
patient exposure to ultrasound energy as low as reasonably achievable for
diagnostic results.
Identified by the letter C (curved or curvilinear) and a number (60). The
number corresponds to the radius of curvature of the array expressed in
millimeters. The transducer elements are electrically configured to control the
characteristics and direction of the acoustic beam. For example, C11x.
Refers to the depth of the display. A constant speed of sound of
1538.5 meters/second is assumed in the calculation of echo position in the
image.
In the natural or original position.
liquid crystal display
Identified by the letter L (linear) and a number (38). The number corresponds
to the length of the array expressed in millimeters. The transducer elements
are electrically configured to control the characteristics and direction of the
acoustic beam. For example, L38xi.
An indication of the likelihood of mechanical bioeffects occurring: the higher
the MI, the greater the likelihood of mechanical bioeffects. See
"Acoustic Output, " for a more complete description of MI.
Refer to mechanical index (MI) and thermal index (TI).
National Television Standards Committee. A video format setting. Refer to
PAL.
Phase Alternating Line. A video format setting. Refer to NTSC.
A transducer designed primarily for cardiac scanning. Forms a sector image
by electronically steering the beam direction and focus. For example, rP19x.
A depth on the display that corresponds to the skin/transducer interface.
Chapter 10,
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