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Transcript
Digital Imaging
acronyms
1.
2.
3.
4.
5.
6.
7.
8.
9.
PSP
CRT
ADC
IP
CR
DR
PACS
SNR
CNR
10.
CCD
11. FOV
12. LUT
13. DICOM
14. RIS
15. HIS
16. TFT
17. DQE
1.
2.
3.
4.
5.
6.
7.
Photostimulable phosphor-europian activated
barium fluorohalide (=200 speed)
Cathode-ray tube or computer monitor
Analog to digital converter
Imaging plate
computed
/digital radiography
Picture archiving communication systems
8.
SIGNAL TO NOISE RATIO PG 410 –BUSHONG The higher the signal the
9.
CONTRAST TO NOISE RATIO can be manipulated until noise
less the noise.
becomes too apparent-limited by the SNR
10. Charge coupled device- crystal silicon- small, replaces vidicon in
11.
12.
13.
14.
15.
fluoro, device used in DR
Field of View –how much of the patient is imaged in the matrix
Look up Table – plotting grays on a scale
Digital imaging and communications in medicine -blending PACS
and other imaging modalities
Radiology Information system
Hospital Information system
16. Thin Film Transmitters-
indirect conversion
detector in DR. Stores electronic charge (from converted light)
before computer processes it.
17. Detective Quantum Efficiency converting x-ray
intensities into a radiographic image