Probes and Biopsy 12-15 
Do not use a needle-guided bracket when scanning 
is  performed.  The  needle  may  advance  in  an 
incorrect direction and possibly injure the animal.   
Never perform a biopsy during image scanning. 
Do  not  freeze  an  image  while  performing  biopsy 
procedure. 
During  biopsy  procedures,  the  needle  may  deviate 
from  the  desired  course  due  to  the  tissue 
characteristics  or  the  type  of  needle.  In  particular, 
needles of small diameters may deviate to a greater 
degree. 
Sterilize  the  transducer  and  the  needle-guided 
bracket  before  and  after  each  ultrasound-guided 
biopsy  procedure  is  performed.  Fail  to  do  so  may 
cause the transducer and the needle-guided bracket 
become sources of infection. 
The needle mark displayed on the ultrasound image 
does  not  indicate  the  actual  position  of  the  biopsy 
needle.  Therefore,  it  should  only  be  used  as  a 
reference.  Always  monitor  the  relative  positions  of 
the biopsy needle during the procedures. 
Adjust the needle mark before the biopsy procedure 
is performed. 
When performing biopsy procedures, use only sterile 
ultrasound  gel  that  is  certified  to  be  safe.  And 
manage the ultrasound gel properly to ensure that it 
does not become a source of infection. 
When  performing  the  operation  concerning  biopsy, 
wear sterile gloves.