TMS
Didactic Muse
Page 13
Imaging Ultrasound Cont.
Interface. That`s why there is no ultrasound diagnosis of adults lungs on
account of the air inside. Fetal lungs are full of liquid so an ultrasound image is possible. Also in echocardiograph studies the bones have to be avoided
to reach the heart.
rayl
is one
of two units of
specific acoustic
impedance.
The units are
named after John
William Strutt,
3rd Baron
Rayleigh.
1 rayl equals
1 dyne-second per
cubic centimeter
(dyn·s·cm−3)
BRIGHT MODE ULTRASOUND IMAGES (BM)
Bright mode ultrasound images or B mode is the image seen in the
monitor in which the different amplitudes of the echoes are represented with
different brightness. The structures appear in the real shape and the biggest
amplitude of an echo is represented as white while the smal