从dcm4che2迁移到dcm4che3

Question

我 在我的java项目中使用了下面提到的dcm4che2的API来自这个存储库http://www.dcm4che.org/maven2/dcm4che/.

dcm4che核心,2.0.29.jar

org.dcm4che2.data.DicomObject  
org.dcm4che2.io.StopTagInputHandler  
org.dcm4che2.data.BasicDicomObject  
org.dcm4che2.data.UIDDictionary  
org.dcm4che2.data.DicomElement  
org.dcm4che2.data.SimpleDcmElement  
org.dcm4che2.net.service.StorageCommitmentService  
org.dcm4che2.util.CloseUtils  

dcm4che净2.0.29.jar

org.dcm4che2.net.CommandUtils  
org.dcm4che2.net.ConfigurationException  
org.dcm4che2.net.NetworkApplicationEntity  
org.dcm4che2.net.NetworkConnection  
org.dcm4che2.net.NewThreadExecutor  
org.dcm4che3.net.service.StorageService  
org.dcm4che3.net.service.VerificationService  

目前我想迁移到dcm4che3但是,在我从这个存储库下载的dcm4che3中找不到上面列出的API http://sourceforge.net/projects/dcm4che/files/dcm4che3/
你能指导一下替代方法吗？

Answer 1

正如您已经观察到的那样,BasicDicomObject是历史 - 与其他一些人一样.

新的"Dicom对象"是属性 - 对象是属性的集合.

因此,您创建属性,使用RQ行为(C-FIND等)所需的标记填充它们,并且您获得的是另一个Attributes对象,您可以从中拉出所需的标记.

在我看来,dcm4che 2.x在处理个别价值表征方面的含糊不清.dcm4che 3.x相当清晰.

迁移需要重写有关查询方式以及如何处理单个标记的代码.另一方面,dcm4che 3.x使新代码更少复杂.

一个相当完整的例子,从给定入藏号的PACS中检索研究; 设置查询并处理结果:

    String modality = null;
    String accessionNumber = "1234567890";

    //--------------------------------------------------------
    // HERE follows setup of a query, using an Attributes object
    //--------------------------------------------------------
    Attributes query = new Attributes();

    // Indicate character set
    {
        int tag = Tag.SpecificCharacterSet;
        VR vr = ElementDictionary.vrOf(tag, query.getPrivateCreator(tag));
        query.setString(tag, vr, "ISO_IR 100");
    }

    // Study level query
    {
        int tag = Tag.QueryRetrieveLevel;
        VR vr = ElementDictionary.vrOf(tag, query.getPrivateCreator(tag));
        query.setString(tag, vr, "STUDY");
    }

    // Accession number
    {
        int tag = Tag.AccessionNumber;
        VR vr = ElementDictionary.vrOf(tag, query.getPrivateCreator(tag));
        query.setString(tag, vr, accessionNumber);
    }

    // Optionally filter on modality in study if 'modality' is provided,
    // otherwise retrieve modality
    {
        int tag = Tag.ModalitiesInStudy; 
        VR vr = ElementDictionary.vrOf(tag, query.getPrivateCreator(tag));
        if (null != modality && modality.length() > 0) {
            query.setString(tag, vr, modality);
         } else {
            query.setNull(tag, vr);
         }
    }

    // We are interested in study instance UID
    {
        int tag = Tag.StudyInstanceUID;
        VR vr = ElementDictionary.vrOf(tag, query.getPrivateCreator(tag));
        query.setNull(tag, vr);
    }

    // Do the actual query, needing an AppliationEntity (ae), 
    // a local (local) and remote (remote) Connection, and 
    // an AAssociateRQ (rq) set up earlier.

    // 1) Open a connection to the SCP
    Association as = ae.connect(local, remote, rq);

    // 2) Query
    int priority = 0x0002; // low for the sake of demo :)
    as.cfind(UID.StudyRootQueryRetrieveInformationModelFIND, query, null,
             new DimseRSPHandler(as.nextMessageID()) {

        @Override
        public void onDimseRSP(Association assoc, Attributes cmd,
                               Attributes response) {

            super.onDimseRSP(assoc, cmd, response);

            int status = cmd.getInt(Tag.Status, -1);
            if (Status.isPending(status)) {
                //--------------------------------------------------------
                // HERE follows handling of the response, which
                // is just another Attributes object
                //--------------------------------------------------------
                String studyInstanceUID = response.getString(Tag.StudyInstanceUID);
                // etc...
            }
        }
    });

    // 3) Close the connection to the SCP
    if (as != null && as.isReadyForDataTransfer()) {
        as.waitForOutstandingRSP();
        as.release();
        as = null;
    }