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Combined DICOM and HL7 viewer in support of a bridge from content-based image retrieval to computer-aided diagnosis Welter P 1, Topal F 1, Jansen S 1,

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Presentation on theme: "Combined DICOM and HL7 viewer in support of a bridge from content-based image retrieval to computer-aided diagnosis Welter P 1, Topal F 1, Jansen S 1,"— Presentation transcript:

1 Combined DICOM and HL7 viewer in support of a bridge from content-based image retrieval to computer-aided diagnosis Welter P 1, Topal F 1, Jansen S 1, Deserno TM 1, Riesmeier J 2, Grouls C 3, Günther RW 3 1 Dept. of Medical Informatics, RWTH Aachen University 2 ICSMED AG, Oldenburg 3 Dept. of Diagnostic Radiology, RWTH Aachen University - ITiB - June 7, 2010

2 Content-Based Image Retrieval (CBIR) n Search in large image repositories using features describing the image content extraction of features texture shape gray value … DB comparison of features CBIR system query by example result images

3 CBIR for Computer-Aided Diagnosis fat embolism silicosis Goodpastures syndrome Goodpastures syndrome 2 nd opinion IRMA IRMA: Image Retrieval in Medical Applications

4 Challenge: Handling of CBIR Results n Aim use of open standards integration with a hospital-wide communication structure DICOM Structured Report CBIR- System Hospital Information System (HIS) Picture archiving and communication system (PACS) Radiology Information System (RIS) Welter P, Deserno TM, Gülpers R et al. (2010) Exemplary Design of a DICOM Structured Report Template for CBIR Integration into Radiological Routine. Procs SPIE Medical Imaging 7628.

5 Challenge: Handling of CBIR Results n Aim use of open standards integration with a hospital-wide communication structure DICOM Structured Report comprehensive and complete representation comprehensive and complete representation Query examination image Identified similar examination images Patient information Diagnostic findings

6 State of the Art Representation OFFIS, DICOMscope DICOM viewer,

7 DICOMscope (2)

8 PACS DB CBIR system CBIR based CADx scheme HIS DB Transfer of patient context Central storage of CBIR results Retrieval of CBIR results Retrieval of diagnostic findings Retrieval of similar examinations diagnostic workstation Flow of data from source to destination

9 PACS DB System design HIS DB diagnostic workstation IRMACON Viewer SR Findings HL7 DICOMPHP/HTML

10 PACS DB Implementation HIS DB diagnostic workstation IRMACON Viewer C-MOVE QRY^R02 ORF^R04 HAPI, DCMTK, XML PNG PHP, Smarty Templates Mapping DICOM - HL7

11 … Patienten-ID(0010,0020) Accession-Number(0008,0050) … … QRD| |R|I|Q4412|||10^RD| |RES| … QRD-10 Order-No QRD-8 Patienten-ID QRD-9 Query for results CBIR SR-Document HL7 QRY^R02

12 Exemplary HL7 messages Query for results of observation QRY^R02 MSH|^~\&|IRMACON||EKG||||QRY^R02|CDB22222|P|2.5 QRD| |R|I|Q4412|||10^RD| |RES| QRF|EKG|| Response ORF^R04 MSH|^~\&|EKG||IRMACON||||ORF^R04|X981672|P … OBX|1|ST| ^VENTRICULAR RATE(EKG)||91|/MIN| … OBX|10|FT|93000&ADT^EKG COMMENT||\.br\ 1. Ein Vergleich mit einem EKG vom zeigt, dass die ventrikuläre Frequenz um 30 bpm gestiegen ist.\.br\2. Die Kriterien für einen Seitenwandinfarkt sind nicht länger gegeben.

13 IRMACON Viewer

14 IRMACON Viewer (Detail)

15 IRMACON Viewer (Findings)

16 Summary n Aim: Integration of CBIR results into radiological clinical routine for CADx n Solution: Novel IRMACON viewer CBIR results (DICOM SR documents) CBIR results (DICOM SR documents) diagnostic findings (HL7 results of observation) diagnostic findings (HL7 results of observation) n Achievement standardized and comprehensive representation standardized and comprehensive representation evidences sourced from CBIR, PACS and HIS convenient integration into clinical environments convenient integration into clinical environments improvement of radiologists workflow and medical diagnosis improvement of radiologists workflow and medical diagnosis

17 Outlook n n Extension of test settings: HIS n n Processing region of interest: restricting CBIR to a certain phenomenon

18 Acknowledgments n Fund German Research Foundation (DFG) grants Le 1108/9 German Research Foundation (DFG) grants Le 1108/9 è

19

20 Possible Format Solutions n Standard file formats (e.g., PDF) include layout directives include layout directives no automatic processing no automatic processing n HL7 Clinical Document Architecture (CDA) XML format supports automatic processing XML format supports automatic processing no layout directives no layout directives n DICOM Structured Reporting (DICOM-SR) supports automatic processing supports automatic processing no layout directives no layout directives DICOM is standard for communication in PACS DICOM is standard for communication in PACS used in integration profiles of the Integrating the Healthcare Enterprise (IHE) used in integration profiles of the Integrating the Healthcare Enterprise (IHE) Welter P, Deserno TM, Gülpers R et al. (2010) Exemplary Design of a DICOM Structured Report Template for CBIR Integration into Radiological Routine. Procs SPIE Medical Imaging 7628.


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