GetPortionCSAHeader.py

 
 
"""
Usage:
 
 python GetPortionCSAHeader.py input.dcm
 
Footnote:
  SIEMENS is not publishing any information on the CSA header. So any info extracted
  is at your own risk.
"""
 
import sys
import gdcm
 
if __name__ == "__main__":
 
  file = sys.argv[1]
 
  r = gdcm.Reader()
  r.SetFileName( file )
  if not r.Read():
    sys.exit(1)
 
  ds = r.GetFile().GetDataSet()
  csa_t1 = gdcm.CSAHeader()
  csa_t2 = gdcm.CSAHeader()
  #print csa
  t1 = csa_t1.GetCSAImageHeaderInfoTag();
  print t1
  t2 = csa_t2.GetCSASeriesHeaderInfoTag();
  print t2
  # Let's do it for t1:
  if ds.FindDataElement( t1 ):
    csa_t1.LoadFromDataElement( ds.GetDataElement( t1 ) )
    print csa_t1
 
  # Now let's pretend we are only interested in B_value and DiffusionGradientDirection entries:
  bvalues = csa_t1.GetCSAElementByName( "B_value" ) # WARNING: it is case sensitive !
  print bvalues
 
  diffgraddir = csa_t1.GetCSAElementByName( "DiffusionGradientDirection" ) # WARNING: it is case sensitive !
  print diffgraddir
 
  # repeat for t2 if you like it:
  if ds.FindDataElement( t2 ):
    csa_t2.LoadFromDataElement( ds.GetDataElement( t2 ) )
    # print csa_t2
 
  gdt = csa_t2.GetCSAElementByName( "GradientDelayTime" )
  print gdt
 
  bv = gdt.GetByteValue();
  #print bv
  str = bv.GetPointer()
  print str.split("\\")