RT Book, Section
A1 Levitov, Alexander B.
A1 John, Joseph
A2 Levitov, Alexander B.
A2 Mayo, Paul H.
A2 Slonim, Anthony D.
SR Print(0)
ID 1106128336
T1 TRANSDUCERS, IMAGE FORMATION, AND ARTIFACTS
T2 Critical Care Ultrasonography, 2e
YR 2015
FD 2015
PB McGraw-Hill Education
PP New York, NY
SN 978-0-07-179352-0
LK accessanesthesiology.mhmedical.com/content.aspx?aid=1106128336
RD 2024/04/24
AB Transducers  are  defined  as  devices  converting  one  form  of  energy  into  another.  In  the  case  of  ultrasound,  electrical  energy  is  converted  into  mechanical  (acoustic)  energy.  The  most  familiar  transducer  is  a  telephone  receiver,  with  an  earpiece  that  converts  electrical  impulses  into  sound  waves  and  a  mouthpiece  that  converts  sound  energy  into  electricity.  Imaging  transducers  combine  both  functions  by  emitting  and  receiving  ultrasound  pulses  and  converting  them  into  electrical  impulses  for  further  processing.  Nonimaging  continuous-wave  (CW)  Doppler  transducers,  just  like  the  telephone  receiver,  have  two  elements:  one  is  constantly  emitting  sound  and  the  other  is  receiving  sound.  Figure  3-1  shows  the  anatomy  of  the  imaging  transducer.