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第 5 章 医学 CT 影像设备与应用 PowerPoint PPT Presentation


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第 5 章 医学 CT 影像设备与应用. 5.1 CT 影像设备简述 5.2 医学 CT 影像设备成像系统 5.3 螺旋 CT 5.4 多排螺旋 CT 5.5 CT 影像设备新技术进展与应用. 5.1 CT 影像设备简述. 5.1.1 CT 影像设备发展概况 5.1.2 CT 影像设备功能 5.1.3 CT 影像设备主要性能指标. 5.1.2 CT 影像设备功能. 1 . CT 成像的基本原理.

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第 5 章 医学 CT 影像设备与应用

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5 ct

5 CT

5.1 CT

5.2 CT

5.3 CT

5.4 CT

5.5 CT


5 ct

5.1 CT

5.1.1 CT

5.1.2 CT

5.1.3 CT


5 ct

5.1.2 CT

1CT

CTXdigital matrix/D/ApixelCT


5 ct

X

CRT

CT


5 ct

5.1.2 CT

2CT

CT

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;


5 ct

5.1.2 CT

X:

gantryXXXdata acquisition systemDAS70cm1230

CT


5 ct

5.1.2 CT

X:

XCT

X12CT

X34CTX


5 ct

5.1.2 CT

CT2X22550

2003SiemensStraton0.37,

Straton


5 ct

CTDASX

detectorDASXXA/D


5 ct

:

CTMRICTCT

CT

CT

CT


5 ct

:

Array Processor,APCT

Philips 16MSCTAP

CPU 3.06GHz

Hard Disk 146GB


5 ct

CTCRTCTworkstation

CTCT


5 ct

5.1.3 CT

CT

CT


5 ct

1X

MHUX

kHUX

TOSHIBAAquilion 16MSCTX7.5MHU1386KHU/minGE64LightSpeed VCTX8.0MHU,2100KHU/min


5 ct

2

XX

GELightSpeed 16MSCT2491221888


5 ct

3

CTX360XCT1s2s3s

GELightSpeed Plus 16CT0.5s

PhilipsBrilliance 16CT0.42s


5 ct

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CT,CT16MSCT112512512

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5 ct

3

CT

CTXXDASCT100


5 ct

4CT

5

6

matrixCTmm= FOVmm /

CT256256320320CT51251210241024CT51251210241024CT


5 ct

7

high contrast resolutionspatial resolutionCT

Lp/cmmmCT10 Lp/cmCT24 Lp/cm


5 ct

8

low contrast resolutiondensity resolution%

CTXX1020CT

9

temporal resolutionCT


5 ct

8

low contrast resolutiondensity resolution%

CTXX1020CT

9

temporal resolutionCT


5 ct

10

CT

reconstruction and reformationCTCT


5 ct

10

CTCTXCT=-w /wa w2.001.0aCT2000HU+1000HU-1000HuCT0CTXCTCT


5 ct

10

CT2000CT200016200016CT200016=125HUCT125HU

window widthCT16

window levelCTCT35HU35HU100HU


5 ct

10

CTCTCTCTCTCTCTCTCT


5 ct

5.2 CT

5.2.1

5.2.2

5.2.3


5 ct

5.2.1

CTdata acquisition systemDASA/DCTXA/D

detector


5 ct

DAS

X-ray

1X


5 ct

2CT

XX


5 ct

2A/DDAS


5 ct

5.2.2

3CTCTX

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:3CTDAS4716752984RDCP


5 ct

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2AP/IOPDAS

3AP

4ELH


5 ct

5AP

6

7

8


5 ct

5.2.3

CTimaging displayCRTCTworkstation


5 ct

5.2.3

CTCT

CT


5 ct

5.3 CT

5.3.1 CT

5.3.2 CT


5 ct

1

CTCTXXX


5 ct

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5 ct

CTCT


5 ct

XX 120kV140kVCT


5 ct

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CTX3601


5 ct

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  • pitchX1XCT


5 ct

  • 1CT

  • CT

  • CT


5 ct

2CT

CT

360180360CTCT1803602180360


5 ct

3CT

CTCTCTCTCT

CTZCTCTCTCT


5 ct

  • 4CT

  • CT

  • multi-planner reconstructionMPRCT

ACTBC


5 ct

  • 3-dimensional reconstructionCT3D360

ASSDB


5 ct

  • maximum intensity projectionMIPCT

AMIPB3D


5 ct

4minimum intensity projectionMinIPCT

AMinIPB


5 ct

  • shaded surface displaySSDCT

  • CTCT angiographyCTACT

ACTABCTACCTA


5 ct

  • CTCT virtural endoscopyCTVECTCT

ACTVE BCTVE


5 ct

  • CT

  • CT

  • CT

  • CTHRCT

  • CTCT

  • XCTCT

  • CTX


5 ct

5.4.1CT

5.4.2CT

5.4.3 CT

5.4 CT


5 ct

5.4.1 CT

MSCTCTCTCTCTXCT4XXXYZCT


5 ct

  • 5.4.2 CT

  • MSCTCT481664MSCT16CT64CT20416CT

  • 4CTToshibaGESiemens/Philips1


5 ct

ABC16MSCT


5 ct

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5 ct

5.5 CT

1CT

2

MSCTCT perfusionCT- time density curveTDC

CTABBVCPS


5 ct

5.5 CT

3)

PET-CTCTPET


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