922-923 / 3107
Prostate markers
•
Widely used, 3-4 inserted
trans-rectally or trans-
perineally
•
Allows correction for prostate
organ motion using 2D
equipment available in all
centres
•
Markers need to have high
specific gravity e.g. Au or Pt if
used with MV rather than kV
imaging
•
2D imaging can give 3D
position
•
Automated detection software
available