Digital Radiography Computed Radiography CR Been around since 198081 Uses same radiographic equipment No change in Xray machine Uses an imaging plate Contains a photostimulator phosphor Need a cassette reader ID: 468051
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Computed Radiography
Digital RadiographySlide2
Computed Radiography (CR)
Been around since 1980-81
Uses same radiographic equipment
No change in X-ray machine
Uses an imaging plate
Contains a photostimulator phosphor
Need a cassette reader
Images can be sent to a PACSSlide3
CT SystemSlide4
CR cons
Still need imaging plates
Cost of plates is expensive
Same amount of time to produce the image as with film
Processing time
Increased exposure when compared to film and DRSlide5
DR
Works like a digital camera
Images are seen immediately
Two options
CCD
Digital flat plate detector
Can be sent to PACS
Small decrease in tech time/time to development when compared to CRSlide6
DR
No film costs
No darkroom space
No processor to maintain
No films to search for or file
No expense for film jackets
Increased productivity
Decreased retakes
Decreased exposure (Eklin)Slide7
Digital Flat Plate Detectors
Expensive ($80,000-120,000)
Can retrofit into existing X-ray machines
Eklin
Exposure is decreased thus improving radiation safety
Do not use grid but use image software
IDEXX
Sound TechnologiesSlide8
DR Portable System - EKLINSlide9
DR – Portable with CarrierSlide10
DR Portable System - IDEXXSlide11
CCD
Is sold with an X-ray machine
Camera is placed in machine before install – fits underneath the table
Less expensive than the Flat Plate Detector
Cause increase in exposure by 2 times
Double the mAsSlide12
Potential Cost Savings
Film
Space
Wont need the darkroom space
Processor
Maintenance
Less technician time
Decreased repeats and no developing
Time lost looking for filmsSlide13
Images
Ability to window exposures
Works like CT
Wider latitude for exposures
Less retakes
Better soft tissue
Image consistencySlide14
PACS
Picture – viewing at workstations
Archiving – images short/long term
Communication –local or wide area networks
System – use with HIS, other equip. ect.
Method that allows storing, retrieving, distributing throughout your hospital or the internet Slide15
PACS
Once an image is made – it is sent to the local PACS – a copy is also sent somewhere else (in house server, off site server)
Then the image can be pulled up and viewed
Multiple sites throughout the hospitalSlide16
EKLINSlide17
DICOM
Digital Imaging and Communications in Medicine
Imaging standard that allows multiple pieces of medical equipment to communicate
Essentially all PACS and almost all equipment speak DICOM now
DICOM does not effect image qualitySlide18
Computer Monitors
Bigger really is better
Small monitor can not see entire image
Some choose grey scale monitors
More expensive (3MP)
Some choose the Dell monitor
Less costly (2MP)Slide19
Dell 2407 HCSlide20
Image Back Up
Must have a way to back up copies of images in case your computer crashes
Time to “keep” images varies by province/state
3 options
On site server
Off site server
Fingers crossed storageSlide21
Teleradiology
Can send your images to a radiologist for interpretation
Should be of diagnostic quality
Buy machine they add in contract with radiologists
Be carefulSlide22
Hospital Integration
Can integrate the images you take into the patients hospital record
If hospital is automated
Referral veterinarians can view images you have made and also receive reports