getdicominfo

#!/opt/local/bin/python
#
#       $Author: frederic $
#       $Date: 2011/08/31 21:07:13 $
#       $Id: getdicominfo,v 1.8 2011/08/31 21:07:13 frederic Exp $
#
import sys
import dicom

def getsiemensmrheader(theplan):
    SiemensCSAHeader2=theplan[0x0029,0x1020].value
    startposition=SiemensCSAHeader2.find('### ASCCONV BEGIN ###')+len('### ASCCONV BEGIN ###')
    endposition=SiemensCSAHeader2.find('### ASCCONV END ###')
    InterestingSiemensHeader=SiemensCSAHeader2[startposition:endposition].splitlines()
    datadict={}
    for theline in InterestingSiemensHeader[1:]:
        thepair=theline.split()
        datadict[thepair[0]]=thepair[2]
    return datadict

# read in the datafile
if len(sys.argv)!=2:
    print "usage: getdicominfo inputfile"
    exit()
filename=sys.argv[1]
plan=dicom.read_file(filename)
timestr=float(plan.AcquisitionTime)
thetr=float(plan.RepetitionTime)
timeconv=3600*(int(timestr/10000)%100)+60*(int(timestr/100)%100)+timestr%100+(timestr-int(timestr))
acqnum=plan.AcquisitionNumber
#thesiemensheader=getsiemensmrheader(plan)
#slicethickness=thesiemensheader['sSliceArray.asSlice[0].dThickness']
#inplanerot=thesiemensheader['sSliceArray.asSlice[0].dInPlaneRot']

try:
    elementnumber=plan[0x0051,0x100f].value
except KeyError:
    print timestr, thetr, acqnum
else:
    print timestr, thetr, acqnum, elementnumber