1. Medical Imaging System Ku-Yaw Chang canseco@mail.dyu.edu.tw Assistant Professor, Department of Computer Science and Information Engineering Da-Yeh University

2. 22004/2/26An Introduction to Medical Imaging System Outline BackgroundDICOMPACS

3. 32004/2/26An Introduction to Medical Imaging System Background Digital diagnostic imaging modalities Computed tomography (CT) Computed tomography (CT) Magnetic resonance imaging (MRI) Magnetic resonance imaging (MRI) Positron emission tomography (PET) Positron emission tomography (PET) Single-photon emission computed tomography (SPECT) Single-photon emission computed tomography (SPECT) Ultrasound (US) Ultrasound (US) Functional MRI (fMRI) Functional MRI (fMRI)

4. 42004/2/26An Introduction to Medical Imaging System Background Structural/anatomical information CT, MRI and US CT, MRI and US Functional information PET, SPECT, and fMRI PET, SPECT, and fMRI

5. 52004/2/26An Introduction to Medical Imaging System CT

6. 62004/2/26An Introduction to Medical Imaging System CT

7. 72004/2/26An Introduction to Medical Imaging System CT

8. 82004/2/26An Introduction to Medical Imaging System CT

9. 92004/2/26An Introduction to Medical Imaging System MR

10. 102004/2/26An Introduction to Medical Imaging System MR

11. 112004/2/26An Introduction to Medical Imaging System MR

12. 122004/2/26An Introduction to Medical Imaging System US

13. 132004/2/26An Introduction to Medical Imaging System US

14. 142004/2/26An Introduction to Medical Imaging System US

15. 152004/2/26An Introduction to Medical Imaging System PET

16. 162004/2/26An Introduction to Medical Imaging System PET

17. 172004/2/26An Introduction to Medical Imaging System PET

18. 182004/2/26An Introduction to Medical Imaging System PET

19. 192004/2/26An Introduction to Medical Imaging System DICOM Digital Imaging and COmmunications in Medicine An evolving standard in digital medicine An evolving standard in digital medicineDICOM an image or file format an image or file format a networking protocol a networking protocol built on top of TCP/IP designed to store and transmit medical data

20. 202004/2/26An Introduction to Medical Imaging System DICOM Official website http://medical.nema.org/ http://medical.nema.org/ http://medical.nema.org/ http://www.dicom.org.tw/index.jsp (Taiwan) http://www.dicom.org.tw/index.jsp (Taiwan) http://www.dicom.org.tw/index.jsp

21. 212004/2/26An Introduction to Medical Imaging System Advantages (1) Universal standard of digital medicine. All current digital image acquisition devices produce DICOM images and work on DICOM networks. All current digital image acquisition devices produce DICOM images and work on DICOM networks.

22. 222004/2/26An Introduction to Medical Imaging System Advantages (2) Excellent image quality. DICOM supports up to 65536 (16 bits) shades of gray for the monochrome image display, still dominating many modalities. With this respect, converting DICOM images into JPEGs or bitmaps (with 256 shades of gray) makes them practically unusable for diagnostic reading. On the other hand, DICOM does include various image-encoding formats, from basic bitmapped data to wavelets. DICOM supports up to 65536 (16 bits) shades of gray for the monochrome image display, still dominating many modalities. With this respect, converting DICOM images into JPEGs or bitmaps (with 256 shades of gray) makes them practically unusable for diagnostic reading. On the other hand, DICOM does include various image-encoding formats, from basic bitmapped data to wavelets.

23. 232004/2/26An Introduction to Medical Imaging System Advantages (3) Full support for image-acquisition parameters. Not only does DICOM store the image pixels, but it also records a multitude of other image-related parameters such as patient 3D position, physical sizes of the objects in the image, slice thickness, image exposure parameters, etc. This data enormously enriches the informational content of DICOM images, and facilitates processing and interpreting the image data in various ways - for instance, creating 3D images from the sequences of 2D CT slices. Not only does DICOM store the image pixels, but it also records a multitude of other image-related parameters such as patient 3D position, physical sizes of the objects in the image, slice thickness, image exposure parameters, etc. This data enormously enriches the informational content of DICOM images, and facilitates processing and interpreting the image data in various ways - for instance, creating 3D images from the sequences of 2D CT slices.

24. 242004/2/26An Introduction to Medical Imaging System Advantages (4) Complete encoding of medical data. DICOM files and messages use about 4000 standardized fields ("DICOM dictionary") to convey various medical data - from patient name to image color depth to current patient diagnosis. This data is often essential for correct diagnostics. DICOM files and messages use about 4000 standardized fields ("DICOM dictionary") to convey various medical data - from patient name to image color depth to current patient diagnosis. This data is often essential for correct diagnostics.

25. 252004/2/26An Introduction to Medical Imaging System PACS Picture Archiving and Communication Systems complete medical systems with all hardware and software included, complete medical systems with all hardware and software included,Components archiving servers (one or many, for online and deep storage) archiving servers (one or many, for online and deep storage) diagnostic workstations diagnostic workstations digital image acquisition devices digital image acquisition devices DICOM conformance statement ensuring their conformance to the standard and interconnectivity. ensuring their conformance to the standard and interconnectivity.

26. 262004/2/26An Introduction to Medical Imaging System PACS Integrated with HIS: Hospital(Healthcare) Information System HIS: Hospital(Healthcare) Information System RIS: Radiology Information System RIS: Radiology Information System

27. 272004/2/26An Introduction to Medical Imaging System marosisTM m-gate

28. 282004/2/26An Introduction to Medical Imaging System Reference Website GE Medical Systems http://www.gemedicalsystems.com/index.html http://www.gemedicalsystems.com/index.html http://www.gemedicalsystems.com/index.html Fujitsu (Taiwan) http://tw.fujitsu.com/ http://tw.fujitsu.com/ http://tw.fujitsu.com/

29. 292004/2/26An Introduction to Medical Imaging System See you next time!