Enhanced XA SOP Class ?????

1
Enhanced XA SOP Class ?????

• Tim Becker
• Heinz Blendinger
• Bas Revet
• Francisco Sureda
• Rainer Thieme

European Society of Cardiology Siemens
Healthcare Philips Medical Systems GE
Healthcare Siemens Healthcare (Chair DICOM WG-02)
Working Group 02 Projection Radiography and
Angiography
2
Enhanced XA SOP Class

• ???2006???,?????83?
• ????X?????????SOP??
• ??Enhanced CT?MR??????
• ??????????
• ????????????
• DICOM???17?????????????
• ???Enhanced XA??????????????
• ?????????????,??Enhanced XA SOP Class?????????

3
????
X-Ray 2D Projection
Enhanced XA SOP CLASS

• ????Enhanced XA SOP Class????????
• ?????????????
• ??????,???????
• ????????????
• ??????X????
• ???????
• ??????????????????

4
????

• ????1
• ??????????
• ???????????
• Viewing applications?????????????????(??,??,??,???
  ?)?
• ??Enhanced XA????
• ????????????????,??
• ????????????
• ??????????
• ???????????
• ?????????

5
????
FRAME ACQUISITION
Frame Display Sequence (0018,7022)
DICOM ENCODING XA/XRF Multi-frame Presentation
Module
6
???????

• ????2
• View applications???????????,?????????????
• ??????????????X??????,??????????????????
• ??Enhanced XA????
• ???????X????????????????????

7
???????
8
?????????

• ????3
• ????????????????????????????????????????????
• ?????????????????????????
• Viewing applications????????????????????????
• ??Enhanced XA????
• ???????????,???????????????

9
?????????
FRAME ACQUISITION and PROCESSING
DICOM ENCODING Mask Module
Frames
Mask Subtraction Sequence (0028,6100)
1
2
3
10
?????????
FRAME ACQUISITION and PROCESSING
DICOM ENCODING Frame Pixel Shift Per-Frame
Frames
Item 2
Frame 2
gtFrame Pixel Shift Seq (0028,9415)
1
2
Item 3
Frame 3
3
gtFrame Pixel Shift Seq (0028,9415)
11
????????

• ????4
• ?????????????,?????????????
• ????????,????????????,????????
• ??Enhanced XA????
• ???????????????
• ?X???????????
• ????????????????

12
????????
How to convert from pixels on image to mm in
patient

• Px Object size in image pixels
• D Object size in mm
• TH Table Height (0018,1130)
• TO Dist. Table to Object (0018,9403)
• Beam Angle (0018,9449)
• SID Dist. Source-Detector (0018,1110)
• ISO Dist. Source-ISO (0018,9402)
• DPx Imager Pixel Spacing (0018,1164)

13
????

• ????5
• ?????????????????????????
• ?????????????????x????????
• ??Enhanced XA????
• ?????????????????

14
????

• Values per frame are in the Per-frame Functional
  Groups Seq. (200,9230)
• In the Frame Content Sequence (0020,9111)
• Frame Acquisition Duration (0018,9220) in ms of
  frame  i  Dti
• In the Frame Acquisition Sequence
  (0018,9417)
• KVP (0018,0060) of frame  i  kVpi
• X-Ray Tube Current in mA (0018,9330) of frame
   i  mAi

15
????

• ????6
• ????????x????????x??????
• ???????
• ?????????????,?????????????
• ??Enhanced XA????
• ???????????????????,?????????
• ?????????????????

16
????
Frame 5 X-ray settings 5 Geometry settings 5
Frame 4 X-ray settings 4 Geometry settings 4
Frame 3 X-ray settings 3 Geometry settings 3
Frame 2 X-ray settings 2 Geometry settings 2
Frame 1 X-ray settings 1 Geometry settings 1
17
????

18
??

• Enhanced XA SOP Class ??????
• ?????XA SOP Class???????,????????????
• ?????XA SOP Class???????,???????????
• DICOM Standard 2006.
• DICOM WG-02?17?????????,
• ?????Enhanced XA????????