--- name: "imagectn" section: "1" platform: "linux" package: "dcmtk" version: "3.5.3-3" release: "Debian 3.1 (Sarge)" platforms: ["linux"] url: "https://new.carta.tech/imagectn" --- # imagectn(1) DICOM image archive (central test node) ## NAME imagectn - DICOM image archive (central test node) ## SYNOPSIS ``` imagectn [options] [port] ``` ## DESCRIPTION The Image Central Test Node (**imagectn**) Application implements a simple image archive. It manages a number of storage areas and allows images to be stored in these storage areas using the DICOM Storage Service Class. It also allows image attributes to be queried and images to be retrieved using the DICOM Query/Retrieve Service Class. The **imagectn** application also implements access restriction rules to limit operations to specific peer application entities. The **imagectn** application is intended to be used in DICOM demonstrations and as a compatibilitiy test tool. In particular, imagectn will delete images if its quota restrictions have been exceeded. ## PARAMETERS ``` port tcp/ip port number to listen on (default: in config file) ``` ## OPTIONS ### general options ``` -h --help print this help text and exit --version print version information and exit -v --verbose verbose mode, print processing details -vv --very-verbose print more processing details -d --debug debug mode, print debug information -c --config [f]ilename: string (default: imagectn.cfg) use specific configuration file # This option allows a specific configuration file to be # specified. By default, the configuration file in the current # working directory with the name "imagectn.cfg" will be used # (i.e. the file ./imagectn.cfg). It is an error if a valid # configuration file is not available. See the documentation # on configuration for more information (ctnconf.txt and the # example configuration file imagectn.cfg). -s --single-process single process mode # This option instructs imagectn to run in single process mode. # Normally, imagectn will spawn a new copy of itself to handle # each association. This option will prevent such copies being # spawned and is particularly useful when running within a # debugger. ``` ### database options ``` association negotiation: --require-find reject all MOVE/GET presentation contexts for which no corresponding FIND context is proposed # This option causes imagectn to enforce a restriction about # FIND and MOVE presentation contexts. The RSNA'93 demonstration # required that a CTN refuse to accept a presentation context for # a MOVE if a FIND presentation context is not also requested. # This option enforces this restriction. --no-parallel-store reject multiple simultaneous STORE presentation contexts for one application entity title # This option causes imagectn to refuse storage presentations # contexts for AE Titles if another association has already # sucessfully negotiated storage presentation contexts for the # AE Title. This option should only be needed for debugging # since the imagectn database back-end sequentialises access via # file-locking. --disable-get disable C-GET support --allow-shutdown allow external shutdown via a private SOP class checking identifier validity: -XF --check-find check C-FIND identifier validity # This option causes imagectn database back-end to perform checks # on the Query Identifiers for a C-FIND command. With this option, # imagectn will reject any queries which do not conform to the very # strict DICOM rules for Query Identifiers. --no-check-find do not check C-FIND identif. validity (default) -XM --check-move check C-MOVE identifier validity # This option causes imagectn database back-end to perform checks # on the Query Identifiers for a C-MOVE command. With this option, # imagectn will reject any queries which do not conform to the very # strict DICOM rules for Query Identifiers. --no-check-move do not check C-MOVE identif. validity (default) restriction of move targets: --move-unrestricted do not restrict move destination (default) -ZA --move-aetitle restrict move dest. to requesting AE title -ZH --move-host restrict move destination to requesting host -ZV --move-vendor restrict move destination to requesting vendor restriction of query/retrieve models: -QP --no-patient-root do not support Patient Root Q/R models -QS --no-study-root do not support Study Root Q/R models -QO --no-patient-study do not support Patient/Study Only Q/R models ``` ### network options ``` preferred network transfer syntaxes for uncompressed transfer: +x= --prefer-uncompr prefer explicit VR local byte order (default) +xe --prefer-little prefer explicit VR little endian TS +xb --prefer-big prefer explicit VR big endian TS +xi --implicit accept implicit VR little endian TS only network host access control (tcp wrapper) options: -ac --access-full accept connections from any host (default) +ac --access-control enforce host access control rules other network options: -to --timeout [s]econds: integer (default: unlimited) timeout for connection requests -pdu --max-pdu [n]umber of bytes: integer [4096..131072] set max receive pdu to n bytes (default: 16384) -dhl --disable-host-lookup disable hostname lookup --refuse refuse association --reject reject association if no implement. class UID --ignore ignore store data, receive but do not store # This option causes imagectn database back-end to ignore # all images received by the Storage Service Class. All images # will be received from the network but not stored to disk nor # recorded in database. -up --uid-padding silently correct space-padded UIDs ``` ### encapsulated pixel data encoding options ``` 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 # This option disables generation of new VRs (UN/UT) when writing # DICOM encoded data to a file to the network. This option can be # used to force compatibility with applications which do not support # these value representations. ``` ### output options ``` bit preserving mode: -B --normal allow implicit format conversions (default) +B --bit-preserving write data exactly as read output file format: +F --write-file write file format (default) -F --write-dataset write data set without file meta information output transfer syntax: (not with --bit-preserving or compressed transmission) +t= --write-xfer-same write with same TS as input (default) +te --write-xfer-little write with explicit VR little endian TS +tb --write-xfer-big write with explicit VR big endian TS +ti --write-xfer-implicit write with implicit VR little endian TS group length encoding (not with --bit-preserving): +g= --group-length-recalc recalculate group lengths if present (default) +g --group-length-create always write with group length elements -g --group-length-remove always write without group length elements length encoding in sequences and items (not with --bit-preserving): +e --length-explicit write with explicit lengths (default) -e --length-undefined write with undefined lengths data set trailing padding (not with --write-dataset or --bit-preserving): -p --padding-off no padding (default) +p --padding-create [f]ile-pad [i]tem-pad: integer align file on multiple of f bytes and items on multiple of i bytes ``` ## NOTES ### Operation **imagectn** waits for another application to connect at the presentation address (port number) specified in its configuration file (or overridden by a command line option). When another application connects, **imagectn** expects it to be a DICOM application and to use calling and called AE Titles specified in **imagectn's** configuration file. imagectn will accept associations with Presentation Contexts for SOP Classes of the Verification Service Class, Storage Service Class and Query/Retreive Service Class. Associations will be rejected or Presentation Contexts will be refused if the peer application does not have appropriate access rights as specified by **imagectn** configuration file. **imagectn** will receive images on Presentation Contexts of the Storage Service Class, write them to a configurable storage area associated with the class AE title, extract attributes from these images and store them in a database. **imagectn** will receive query requests and generate query responses on Presentation Contexts of the Query/Retrieve Service class. **imagectn** will receive retrieve requests and generate retrieve responses on Presentation Contexts of the Query/Retrieve Service class. **imagectn** will also process C-CANCEL messages to interrupt query/retrieve operations. Under normal operations **imagectn** will never exit, it keeps on waiting for new associations until killed. ### DICOM Conformance ### SCU Conformance The **imagectn** application supports the following SOP Classes as an SCU: ``` VerificationSOPClass 1.2.840.10008.1.1 StoredPrintStorage 1.2.840.10008.5.1.1.27 HardcopyGrayscaleImageStorage 1.2.840.10008.5.1.1.29 HardcopyColorImageStorage 1.2.840.10008.5.1.1.30 ComputedRadiographyImageStorage 1.2.840.10008.5.1.4.1.1.1 DigitalXRayImageStorageForPresentation 1.2.840.10008.5.1.4.1.1.1.1 DigitalXRayImageStorageForProcessing 1.2.840.10008.5.1.4.1.1.1.1.1 DigitalMammographyXRayImageStorageForPresentation 1.2.840.10008.5.1.4.1.1.1.2 DigitalMammographyXRayImageStorageForProcessing 1.2.840.10008.5.1.4.1.1.1.2.1 DigitalIntraOralXRayImageStorageForPresentation 1.2.840.10008.5.1.4.1.1.1.3 DigitalIntraOralXRayImageStorageForProcessing 1.2.840.10008.5.1.4.1.1.1.3.1 CTImageStorage 1.2.840.10008.5.1.4.1.1.2 EnhancedCTImageStorage 1.2.840.10008.5.1.4.1.1.2.1 RETIRED_UltrasoundMultiframeImageStorage 1.2.840.10008.5.1.4.1.1.3 UltrasoundMultiframeImageStorage 1.2.840.10008.5.1.4.1.1.3.1 MRImageStorage 1.2.840.10008.5.1.4.1.1.4 EnhancedMRImageStorage 1.2.840.10008.5.1.4.1.1.4.1 MRSpectroscopyStorage 1.2.840.10008.5.1.4.1.1.4.2 RETIRED_NuclearMedicineImageStorage 1.2.840.10008.5.1.4.1.1.5 RETIRED_UltrasoundImageStorage 1.2.840.10008.5.1.4.1.1.6 UltrasoundImageStorage 1.2.840.10008.5.1.4.1.1.6.1 SecondaryCaptureImageStorage 1.2.840.10008.5.1.4.1.1.7 MultiframeSingleBitSecondaryCaptureImageStorage 1.2.840.10008.5.1.4.1.1.7.1 MultiframeGrayscaleByteSecondaryCaptureImageStorage 1.2.840.10008.5.1.4.1.1.7.2 MultiframeGrayscaleWordSecondaryCaptureImageStorage 1.2.840.10008.5.1.4.1.1.7.3 MultiframeTrueColorSecondaryCaptureImageStorage 1.2.840.10008.5.1.4.1.1.7.4 StandaloneOverlayStorage 1.2.840.10008.5.1.4.1.1.8 StandaloneCurveStorage 1.2.840.10008.5.1.4.1.1.9 TwelveLeadECGWaveformStorage 1.2.840.10008.5.1.4.1.1.9.1.1 GeneralECGWaveformStorage 1.2.840.10008.5.1.4.1.1.9.1.2 AmbulatoryECGWaveformStorage 1.2.840.10008.5.1.4.1.1.9.1.3 HemodynamicWaveformStorage 1.2.840.10008.5.1.4.1.1.9.2.1 CardiacElectrophysiologyWaveformStorage 1.2.840.10008.5.1.4.1.1.9.3.1 BasicVoiceAudioWaveformStorage 1.2.840.10008.5.1.4.1.1.9.4.1 StandaloneModalityLUTStorage 1.2.840.10008.5.1.4.1.1.10 StandaloneVOILUTStorage 1.2.840.10008.5.1.4.1.1.11 GrayscaleSoftcopyPresentationStateStorage 1.2.840.10008.5.1.4.1.1.11.1 XRayAngiographicImageStorage 1.2.840.10008.5.1.4.1.1.12.1 XRayFluoroscopyImageStorage 1.2.840.10008.5.1.4.1.1.12.2 RETIRED_XRayAngiographicBiPlaneImageStorage 1.2.840.10008.5.1.4.1.1.12.3 NuclearMedicineImageStorage 1.2.840.10008.5.1.4.1.1.20 RawDataStorage 1.2.840.10008.5.1.4.1.1.66 SpatialRegistrationStorage 1.2.840.10008.5.1.4.1.1.66.1 SpatialFiducialsStorage 1.2.840.10008.5.1.4.1.1.66.2 VLEndoscopicImageStorage 1.2.840.10008.5.1.4.1.1.77.1.1 VideoEndoscopicImageStorage 1.2.840.10008.5.1.4.1.1.77.1.1.1 VLMicroscopicImageStorage 1.2.840.10008.5.1.4.1.1.77.1.2 MicroscopicImageStorage 1.2.840.10008.5.1.4.1.1.77.1.2.1 VLSlideCoordinatesMicroscopicImageStorage 1.2.840.10008.5.1.4.1.1.77.1.3 VLPhotographicImageStorage 1.2.840.10008.5.1.4.1.1.77.1.4 VideoPhotographicImageStorage 1.2.840.10008.5.1.4.1.1.77.1.4.1 BasicTextSR 1.2.840.10008.5.1.4.1.1.88.11 EnhancedSR 1.2.840.10008.5.1.4.1.1.88.22 ComprehensiveSR 1.2.840.10008.5.1.4.1.1.88.33 ProcedureLogStorage 1.2.840.10008.5.1.4.1.1.88.40 MammographyCADSR 1.2.840.10008.5.1.4.1.1.88.50 KeyObjectSelectionDocument 1.2.840.10008.5.1.4.1.1.88.59 ChestCADSR 1.2.840.10008.5.1.4.1.1.88.65 PETImageStorage 1.2.840.10008.5.1.4.1.1.128 PETCurveStorage 1.2.840.10008.5.1.4.1.1.129 RTImageStorage 1.2.840.10008.5.1.4.1.1.481.1 RTDoseStorage 1.2.840.10008.5.1.4.1.1.481.2 RTStructureSetStorage 1.2.840.10008.5.1.4.1.1.481.3 RTBeamsTreatmentRecordStorage 1.2.840.10008.5.1.4.1.1.481.4 RTPlanStorage 1.2.840.10008.5.1.4.1.1.481.5 RTBrachyTreatmentRecordStorage 1.2.840.10008.5.1.4.1.1.481.6 RTTreatmentSummaryRecordStorage 1.2.840.10008.5.1.4.1.1.481.7 ``` The **imagectn** application will propose presentation contexts for all of the abovementioned supported SOP Classes using 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 **imagectn** application does not support extended negotiation. ### SCP Conformance The **imagectn** application supports the following SOP Classes as an SCP: ``` VerificationSOPClass 1.2.840.10008.1.1 FINDPatientRootQueryRetrieveInformationModel 1.2.840.10008.5.1.4.1.2.1.1 FINDPatientStudyOnlyQueryRetrieveInformationModel 1.2.840.10008.5.1.4.1.2.3.1 FINDStudyRootQueryRetrieveInformationModel 1.2.840.10008.5.1.4.1.2.2.1 GETPatientRootQueryRetrieveInformationModel 1.2.840.10008.5.1.4.1.2.1.3 GETPatientStudyOnlyQueryRetrieveInformationModel 1.2.840.10008.5.1.4.1.2.3.3 GETStudyRootQueryRetrieveInformationModel 1.2.840.10008.5.1.4.1.2.2.3 MOVEPatientRootQueryRetrieveInformationModel 1.2.840.10008.5.1.4.1.2.1.2 MOVEPatientStudyOnlyQueryRetrieveInformationModel 1.2.840.10008.5.1.4.1.2.3.2 MOVEStudyRootQueryRetrieveInformationModel 1.2.840.10008.5.1.4.1.2.2.2 StoredPrintStorage 1.2.840.10008.5.1.1.27 HardcopyGrayscaleImageStorage 1.2.840.10008.5.1.1.29 HardcopyColorImageStorage 1.2.840.10008.5.1.1.30 ComputedRadiographyImageStorage 1.2.840.10008.5.1.4.1.1.1 DigitalXRayImageStorageForPresentation 1.2.840.10008.5.1.4.1.1.1.1 DigitalXRayImageStorageForProcessing 1.2.840.10008.5.1.4.1.1.1.1.1 DigitalMammographyXRayImageStorageForPresentation 1.2.840.10008.5.1.4.1.1.1.2 DigitalMammographyXRayImageStorageForProcessing 1.2.840.10008.5.1.4.1.1.1.2.1 DigitalIntraOralXRayImageStorageForPresentation 1.2.840.10008.5.1.4.1.1.1.3 DigitalIntraOralXRayImageStorageForProcessing 1.2.840.10008.5.1.4.1.1.1.3.1 CTImageStorage 1.2.840.10008.5.1.4.1.1.2 EnhancedCTImageStorage 1.2.840.10008.5.1.4.1.1.2.1 RETIRED_UltrasoundMultiframeImageStorage 1.2.840.10008.5.1.4.1.1.3 UltrasoundMultiframeImageStorage 1.2.840.10008.5.1.4.1.1.3.1 MRImageStorage 1.2.840.10008.5.1.4.1.1.4 EnhancedMRImageStorage 1.2.840.10008.5.1.4.1.1.4.1 MRSpectroscopyStorage 1.2.840.10008.5.1.4.1.1.4.2 RETIRED_NuclearMedicineImageStorage 1.2.840.10008.5.1.4.1.1.5 RETIRED_UltrasoundImageStorage 1.2.840.10008.5.1.4.1.1.6 UltrasoundImageStorage 1.2.840.10008.5.1.4.1.1.6.1 SecondaryCaptureImageStorage 1.2.840.10008.5.1.4.1.1.7 MultiframeSingleBitSecondaryCaptureImageStorage 1.2.840.10008.5.1.4.1.1.7.1 MultiframeGrayscaleByteSecondaryCaptureImageStorage 1.2.840.10008.5.1.4.1.1.7.2 MultiframeGrayscaleWordSecondaryCaptureImageStorage 1.2.840.10008.5.1.4.1.1.7.3 MultiframeTrueColorSecondaryCaptureImageStorage 1.2.840.10008.5.1.4.1.1.7.4 StandaloneOverlayStorage 1.2.840.10008.5.1.4.1.1.8 StandaloneCurveStorage 1.2.840.10008.5.1.4.1.1.9 TwelveLeadECGWaveformStorage 1.2.840.10008.5.1.4.1.1.9.1.1 GeneralECGWaveformStorage 1.2.840.10008.5.1.4.1.1.9.1.2 AmbulatoryECGWaveformStorage 1.2.840.10008.5.1.4.1.1.9.1.3 HemodynamicWaveformStorage 1.2.840.10008.5.1.4.1.1.9.2.1 CardiacElectrophysiologyWaveformStorage 1.2.840.10008.5.1.4.1.1.9.3.1 BasicVoiceAudioWaveformStorage 1.2.840.10008.5.1.4.1.1.9.4.1 StandaloneModalityLUTStorage 1.2.840.10008.5.1.4.1.1.10 StandaloneVOILUTStorage 1.2.840.10008.5.1.4.1.1.11 GrayscaleSoftcopyPresentationStateStorage 1.2.840.10008.5.1.4.1.1.11.1 XRayAngiographicImageStorage 1.2.840.10008.5.1.4.1.1.12.1 XRayFluoroscopyImageStorage 1.2.840.10008.5.1.4.1.1.12.2 RETIRED_XRayAngiographicBiPlaneImageStorage 1.2.840.10008.5.1.4.1.1.12.3 NuclearMedicineImageStorage 1.2.840.10008.5.1.4.1.1.20 RawDataStorage 1.2.840.10008.5.1.4.1.1.66 SpatialRegistrationStorage 1.2.840.10008.5.1.4.1.1.66.1 SpatialFiducialsStorage 1.2.840.10008.5.1.4.1.1.66.2 VLEndoscopicImageStorage 1.2.840.10008.5.1.4.1.1.77.1.1 VideoEndoscopicImageStorage 1.2.840.10008.5.1.4.1.1.77.1.1.1 VLMicroscopicImageStorage 1.2.840.10008.5.1.4.1.1.77.1.2 MicroscopicImageStorage 1.2.840.10008.5.1.4.1.1.77.1.2.1 VLSlideCoordinatesMicroscopicImageStorage 1.2.840.10008.5.1.4.1.1.77.1.3 VLPhotographicImageStorage 1.2.840.10008.5.1.4.1.1.77.1.4 VideoPhotographicImageStorage 1.2.840.10008.5.1.4.1.1.77.1.4.1 BasicTextSR 1.2.840.10008.5.1.4.1.1.88.11 EnhancedSR 1.2.840.10008.5.1.4.1.1.88.22 ComprehensiveSR 1.2.840.10008.5.1.4.1.1.88.33 ProcedureLogStorage 1.2.840.10008.5.1.4.1.1.88.40 MammographyCADSR 1.2.840.10008.5.1.4.1.1.88.50 KeyObjectSelectionDocument 1.2.840.10008.5.1.4.1.1.88.59 ChestCADSR 1.2.840.10008.5.1.4.1.1.88.65 PETImageStorage 1.2.840.10008.5.1.4.1.1.128 PETCurveStorage 1.2.840.10008.5.1.4.1.1.129 RTImageStorage 1.2.840.10008.5.1.4.1.1.481.1 RTDoseStorage 1.2.840.10008.5.1.4.1.1.481.2 RTStructureSetStorage 1.2.840.10008.5.1.4.1.1.481.3 RTBeamsTreatmentRecordStorage 1.2.840.10008.5.1.4.1.1.481.4 RTPlanStorage 1.2.840.10008.5.1.4.1.1.481.5 RTBrachyTreatmentRecordStorage 1.2.840.10008.5.1.4.1.1.481.6 RTTreatmentSummaryRecordStorage 1.2.840.10008.5.1.4.1.1.481.7 PrivateShutdownSOPClass 1.2.276.0.7230010.3.4.1915765545.18030.917282194.0 ``` The **imagectn** application will accept presentation contexts for all of the above mentioned supported SOP Classes using any of 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 **imagectn** application will prefer transfer syntaxes having an explicit encoding over the default implicit transfer syntax. If **imagectn** is running on big-endian hardware it will prefer BigEndianExplicitTransferSyntax to LittleEndianExplicitTransferSyntax (and vice versa). The **imagectn** application does not support extended negotiation. ### Configuration The **imagectn** program uses the same configuration file as the **ti** program. See the documentation on configuration for more information. ### Access Control When compiled on Unix platforms with TCP wrapper support, host-based access control can be enabled with the *--access-control* command line option. In this case the access control rules defined in the system's host access control tables for **imagectn** are enforced. The default locations of the host access control tables are */etc/hosts.allow* and */etc/hosts.deny*. Further details are described in [**hosts\_access**(5)](/hosts_access/5.md). ## 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) 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 *share/data/dumppat.txt*). ## ENVIRONMENT The **imagectn** 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 *\/lib/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. 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. ## FILES *share/doc/ctnconf.txt* - configuration information \ *share/doc/ctnsetup.txt* - setup information \ *etc/imagectn.cfg* - example configuration file ## SEE ALSO [**ti**(1)](/ti/1.md) ## COPYRIGHT Copyright (C) 1993-2004 by Kuratorium OFFIS e.V., Escherweg 2, 26121 Oldenburg, Germany.