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NAME

       findscu - DICOM query (C-FIND) SCU

SYNOPSIS

       findscu [options] peer port [dcmfile-in...]

DESCRIPTION

       The  findscu  application  implements  an SCU for the Query/Retrieve Service Class and the
       Basic Worklist Management Service Class. findscu only supports query  functionality  using
       the  C-FIND  message.  It sends query keys to an SCP and awaits responses. The application
       can be used to test SCPs of the  Query/Retrieve  and  Basic  Worklist  Management  Service
       Classes.

PARAMETERS

       peer        hostname of DICOM peer

       port        tcp/ip port number of peer

       dcmfile-in  DICOM query file(s)

OPTIONS

   general options
         -h    --help
                 print this help text and exit

               --version
                 print version information and exit

               --arguments
                 print expanded command line arguments

         -q    --quiet
                 quiet mode, print no warnings and errors

         -v    --verbose
                 verbose mode, print processing details

         -d    --debug
                 debug mode, print debug information

         -ll   --log-level  [l]evel: string constant
                 (fatal, error, warn, info, debug, trace)
                 use level l for the logger

         -lc   --log-config  [f]ilename: string
                 use config file f for the logger

   network options
       override matching keys:

         -k    --key  [k]ey: gggg,eeee="str", path or dictionary name="str"
                 override matching key

       query information model:

         -W    --worklist
                 use modality worklist information model (default)

         -P    --patient
                 use patient root information model

         -S    --study
                 use study root information model

         -O    --psonly
                 use patient/study only information model

       application entity titles:

         -aet  --aetitle  [a]etitle: string
                 set my calling AE title (default: FINDSCU)

         -aec  --call  [a]etitle: string
                 set called AE title of peer (default: ANY-SCP)

       post-1993 value representations:

         +u    --enable-new-vr
                 enable support for new VRs (UN/UT) (default)

         -u    --disable-new-vr
                 disable support for new VRs, convert to OB

       proposed transmission transfer syntaxes:

         -x=   --propose-uncompr
                 propose all uncompressed TS, explicit VR
                 with local byte ordering first (default)

         -xe   --propose-little
                 propose all uncompressed TS, explicit VR
                 little endian first

         -xb   --propose-big
                 propose all uncompressed TS, explicit VR
                 big endian first

         -xi   --propose-implicit
                 propose implicit VR little endian TS only

       other network options:

         -to   --timeout  [s]econds: integer (default: unlimited)
                 timeout for connection requests

         -ta   --acse-timeout  [s]econds: integer (default: 30)
                 timeout for ACSE messages

         -td   --dimse-timeout  [s]econds: integer (default: unlimited)
                 timeout for DIMSE messages

         -pdu  --max-pdu  [n]umber of bytes: integer (4096..131072)
                 set max receive pdu to n bytes (default: 16384)

               --repeat  [n]umber: integer
                 repeat n times

               --abort
                 abort association instead of releasing it

               --cancel  [n]umber: integer
                 cancel after n responses (default: never)

         -X    --extract
                 extract responses to file (rsp0001.dcm, ...)

   transport layer security (TLS) options
       transport protocol stack:

         -tls  --disable-tls
                 use normal TCP/IP connection (default)

         +tls  --enable-tls  [p]rivate key file, [c]ertificate file: string
                 use authenticated secure TLS connection

         +tla  --anonymous-tls
                 use secure TLS connection without certificate

       private key password (only with --enable-tls):

         +ps   --std-passwd
                 prompt user to type password on stdin (default)

         +pw   --use-passwd  [p]assword: string
                 use specified password

         -pw   --null-passwd
                 use empty string as password

       key and certificate file format:

         -pem  --pem-keys
                 read keys and certificates as PEM file (default)

         -der  --der-keys
                 read keys and certificates as DER file

       certification authority:

         +cf   --add-cert-file  [c]ertificate filename: string
                 add certificate file to list of certificates

         +cd   --add-cert-dir  [c]ertificate directory: string
                 add certificates in d to list of certificates

       ciphersuite:

         +cs   --cipher  [c]iphersuite name: string
                 add ciphersuite to list of negotiated suites

         +dp   --dhparam  [f]ilename: string
                 read DH parameters for DH/DSS ciphersuites

       pseudo random generator:

         +rs   --seed  [f]ilename: string
                 seed random generator with contents of f

         +ws   --write-seed
                 write back modified seed (only with --seed)

         +wf   --write-seed-file  [f]ilename: string (only with --seed)
                 write modified seed to file f

       peer authentication:

         -rc   --require-peer-cert
                 verify peer certificate, fail if absent (default)

         -vc   --verify-peer-cert
                 verify peer certificate if present

         -ic   --ignore-peer-cert
                 don't verify peer certificate

NOTES

       Each  file  supplied  on  the  command  line  will  be sent to the SCP as part of a C-FIND
       request. The query file must be a valid DICOM data set containing the dataset part of a C-
       FIND-RQ  message. The query file could, for instance, be created with the dump2dcm utility
       from a script like the following example:

       # query patient names and IDs
       (0008,0052) CS [PATIENT]     # QueryRetrieveLevel
       (0010,0010) PN []            # PatientName
       (0010,0020) LO []            # PatientID

       Individual attributes of each file sent can be  modified  or  supplemented  using  the  -k
       option. For example the command:

       findscu -P -k "(0010,0010)=HEWETT*" caesar 5678 patqry.dcm

       will,  when sent to the SCP caesar at TCP/IP port 5678, cause any PatientName attribute in
       patqry.dcm to have the value 'HEWETT*'. If  such  an  attribute  is  present  it  will  be
       replaced,  if absent it will be inserted. The -k option can be present more than once. The
       value part (after the '=') may be absent causing  the  attribute  to  be  sent  with  zero
       length.

       In  earlier  versions  of findscu, the tag keys were specified without braces around group
       and element number,  e.  g.  '0010,0010'  instead  of  '(0010,0010)'.  It  is  recommended
       switching to the new syntax; however, the old syntax is still working.

       Also  -k  accepts  dictionary names instead of element tags for specifying DICOM elements.
       For example, the findscu call above then reads like this:

       findscu -P -k PatientName="HEWETT*" caesar 5678 patqry.dcm

       It is also possible to specify sequences, items and nested attributes using the -k option.
       In these cases, a special 'path' notation has to be used, e. g.

       findscu -W -k "(0040,0100)[0].Modality=CT" caesar 5678

       This  call  queries  a  worklist  server  at host caesar for any planned procedures for CT
       modalities by specifing  tag  (0040,0100)  'Scheduled  Procedure  Step  Sequence'  and  an
       attribute  'Modality'  in the first item of this sequence with value 'CT'. Details on this
       path notation can be found in the documentation of dcmodify.

       If no file is specified on the command line, the query must be specified  completely  with
       one or more -k options.

       Each  set  of  response  identifiers  received  will  be  printed  to stdout unless option
       --extract is used.

   DICOM Conformance
       The findscu application supports the following SOP Classes as an SCU:

       FINDPatientRootQueryRetrieveInformationModel       1.2.840.10008.5.1.4.1.2.1.1
       FINDStudyRootQueryRetrieveInformationModel         1.2.840.10008.5.1.4.1.2.2.1
       FINDPatientStudyOnlyQueryRetrieveInformationModel  1.2.840.10008.5.1.4.1.2.3.1
       FINDModalityWorklistInformationModel               1.2.840.10008.5.1.4.31

       The findscu application will propose presentation contexts for one of  the  abovementioned
       supported  SOP Classes depending on command line options (-P, -S, -O or -W). Each proposed
       presentation context will propose the transfer syntaxes:

       LittleEndianImplicitTransferSyntax                 1.2.840.10008.1.2
       LittleEndianExplicitTransferSyntax                 1.2.840.10008.1.2.1
       BigEndianExplicitTransferSyntax                    1.2.840.10008.1.2.2

       The findscu application does not support extended negotiation.

LOGGING

       The level of logging output of the various command line tools and underlying libraries can
       be specified by the user. By default, only errors and warnings are written to the standard
       error stream. Using option --verbose also informational messages like  processing  details
       are  reported.  Option  --debug  can be used to get more details on the internal activity,
       e.g. for debugging purposes. Other logging levels can  be  selected  using  option  --log-
       level.  In  --quiet mode only fatal errors are reported. In such very severe error events,
       the application will usually terminate. For more details on the different logging  levels,
       see documentation of module 'oflog'.

       In  case  the logging output should be written to file (optionally with logfile rotation),
       to syslog (Unix) or the  event  log  (Windows)  option  --log-config  can  be  used.  This
       configuration  file also allows for directing only certain messages to a particular output
       stream and for filtering certain messages based on the module or  application  where  they
       are generated. An example configuration file is provided in <etcdir>/logger.cfg).

COMMAND LINE

       All  command line tools use the following notation for parameters: square brackets enclose
       optional values (0-1), three trailing dots  indicate  that  multiple  values  are  allowed
       (1-n), a combination of both means 0 to n values.

       Command  line  options  are  distinguished  from  parameters by a leading '+' or '-' sign,
       respectively. Usually, order and position of command line options are arbitrary (i.e. they
       can  appear anywhere). However, if options are mutually exclusive the rightmost appearance
       is used. This behaviour conforms to the standard evaluation rules of common Unix shells.

       In addition, one or more command files can be specified using an '@' sign as a  prefix  to
       the  filename  (e.g.  @command.txt). Such a command argument is replaced by the content of
       the corresponding text file (multiple whitespaces are treated as a single separator unless
       they appear between two quotation marks) prior to any further evaluation. Please note that
       a command file cannot contain another command file. This  simple  but  effective  approach
       allows  to  summarize  common  combinations  of  options/parameters and avoids longish and
       confusing command lines (an example is provided in file <datadir>/dumppat.txt).

ENVIRONMENT

       The findscu utility will  attempt  to  load  DICOM  data  dictionaries  specified  in  the
       DCMDICTPATH environment variable. By default, i.e. if the DCMDICTPATH environment variable
       is not set, the file <datadir>/dicom.dic will be loaded unless  the  dictionary  is  built
       into the application (default for Windows).

       The  default  behaviour  should be preferred and the DCMDICTPATH environment variable only
       used when alternative data dictionaries are required. The DCMDICTPATH environment variable
       has  the  same  format  as  the  Unix  shell PATH variable in that a colon (':') separates
       entries. On Windows systems, a semicolon (';') is used as a separator. The data dictionary
       code  will attempt to load each file specified in the DCMDICTPATH environment variable. It
       is an error if no data dictionary can be loaded.

SEE ALSO

       movescu(1), dump2dcm(1), dcmodify(1)

COPYRIGHT

       Copyright (C) 1994-2010 by OFFIS e.V., Escherweg 2, 26121 Oldenburg, Germany.